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Added davidson without S2

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This commit is contained in:
Anthony Scemama 2021-02-17 00:46:58 +01:00
parent 7aa191523d
commit 554579492b
17 changed files with 2243 additions and 416 deletions
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1
src/cipsi/NEED
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@ -4,3 +4,4 @@ mpi
davidson_undressed
iterations
two_body_rdm
csf

2
src/cipsi/selection.irp.f
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@ -700,7 +700,7 @@ subroutine fill_buffer_double(i_generator, sp, h1, h2, bannedOrb, banned, fock_d
endif
enddo
do_diag = sum(dabs(coef)) > 0.001d0
do_diag = sum(dabs(coef)) > 0.001d0 .and. N_states > 1
double precision :: eigvalues(N_states+1)
double precision :: work(1+6*(N_states+1)+2*(N_states+1)**2)

1
src/csf/NEED Normal file
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@ -0,0 +1 @@
determinants

0
src/determinants/configuration_CI_sigma_helpers.irp.f → src/csf/configuration_CI_sigma_helpers.irp.f
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0
src/determinants/configuration_CI_sigma_helpers.org → src/csf/configuration_CI_sigma_helpers.org
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0
src/determinants/configurations.irp.f → src/csf/configurations.irp.f
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279
src/csf/create_excitations.irp.f Normal file
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@ -0,0 +1,279 @@
subroutine do_single_excitation_cfg(key_in,key_out,i_hole,i_particle,ok)
use bitmasks
implicit none
BEGIN_DOC
! Applies the single excitation operator to a configuration
! If the excitation is possible, ok is True
END_DOC
integer, intent(in) :: i_hole,i_particle
integer(bit_kind), intent(in) :: key_in(N_int,2)
logical , intent(out) :: ok
integer :: k,j,i
integer(bit_kind) :: mask
integer(bit_kind) :: key_out(N_int,2)
ASSERT (i_hole > 0)
ASSERT (i_particle <= mo_num)
ok = .True.
key_out(:,:) = key_in(:,:)
! hole
k = shiftr(i_hole-1,bit_kind_shift)+1
j = i_hole-shiftl(k-1,bit_kind_shift)-1
mask = ibset(0_bit_kind,j)
! Check if the position j is singly occupied
! 1 -> 0 (SOMO)
! 0 0 (DOMO)
if (iand(key_out(k,1),mask) /= 0_bit_kind) then
key_out(k,1) = ibclr(key_out(k,1),j)
! Check if the position j is doubly occupied
! 0 -> 1 (SOMO)
! 1 0 (DOMO)
else if (iand(key_out(k,2),mask) /= 0_bit_kind) then
key_out(k,1) = ibset(key_out(k,1),j)
key_out(k,2) = ibclr(key_out(k,2),j)
! The position j is unoccupied: Not OK
! 0 -> 0 (SOMO)
! 0 0 (DOMO)
else
ok =.False.
return
endif
! particle
k = shiftr(i_particle-1,bit_kind_shift)+1
j = i_particle-shiftl(k-1,bit_kind_shift)-1
mask = ibset(0_bit_kind,j)
! Check if the position j is singly occupied
! 1 -> 0 (SOMO)
! 0 1 (DOMO)
if (iand(key_out(k,1),mask) /= 0_bit_kind) then
key_out(k,1) = ibclr(key_out(k,1),j)
key_out(k,2) = ibset(key_out(k,2),j)
! Check if the position j is doubly occupied : Not OK
! 0 -> 1 (SOMO)
! 1 0 (DOMO)
else if (iand(key_out(k,2),mask) /= 0_bit_kind) then
ok = .False.
return
! Position at j is unoccupied
! 0 -> 0 (SOMO)
! 0 0 (DOMO)
else
key_out(k,1) = ibset(key_out(k,1),j)
endif
end
subroutine do_single_excitation_cfg_with_type(key_in,key_out,i_hole,i_particle,ex_type,ok)
use bitmasks
implicit none
BEGIN_DOC
! Applies the single excitation operator to a configuration
! Returns the type of excitation in ex_type
! where the following convention is used
! 1 = (SOMO -> SOMO) 1 change in Nsomo
! 2 = (DOMO -> VMO) 1 change in Nsomo
! 3 = (SOMO -> VMO) 0 change in Nsomo
! 4 = (DOMO -> SOMO) 0 change in Nsomo
! If the excitation is possible, ok is True
END_DOC
integer, intent(in) :: i_hole,i_particle
integer(bit_kind), intent(in) :: key_in(N_int,2)
integer , intent(out) :: ex_type
logical , intent(out) :: ok
integer :: k,j,i
integer(bit_kind) :: mask
integer(bit_kind) :: key_out(N_int,2)
logical :: isholeSOMO
logical :: isparticleSOMO
logical :: isholeDOMO
logical :: isparticleVMO
isholeSOMO = .False.
isholeDOMO = .False.
isparticleSOMO = .False.
isparticleVMO = .False.
ASSERT (i_hole > 0)
ASSERT (i_particle <= mo_num)
ok = .True.
key_out(:,:) = key_in(:,:)
! hole
k = shiftr(i_hole-1,bit_kind_shift)+1
j = i_hole-shiftl(k-1,bit_kind_shift)-1
mask = ibset(0_bit_kind,j)
! Check if the position j is singly occupied
! 1 -> 0 (SOMO)
! 0 0 (DOMO)
if (iand(key_out(k,1),mask) /= 0_bit_kind) then
key_out(k,1) = ibclr(key_out(k,1),j)
isholeSOMO = .True.
! Check if the position j is doubly occupied
! 0 -> 1 (SOMO)
! 1 0 (DOMO)
else if (iand(key_out(k,2),mask) /= 0_bit_kind) then
key_out(k,1) = ibset(key_out(k,1),j)
key_out(k,2) = ibclr(key_out(k,2),j)
isholeDOMO = .True.
! The position j is unoccupied: Not OK
! 0 -> 0 (SOMO)
! 0 0 (DOMO)
else
ok =.False.
return
endif
! particle
k = shiftr(i_particle-1,bit_kind_shift)+1
j = i_particle-shiftl(k-1,bit_kind_shift)-1
mask = ibset(0_bit_kind,j)
! Check if the position j is singly occupied
! 1 -> 0 (SOMO)
! 0 1 (DOMO)
if (iand(key_out(k,1),mask) /= 0_bit_kind) then
key_out(k,1) = ibclr(key_out(k,1),j)
key_out(k,2) = ibset(key_out(k,2),j)
isparticleSOMO = .True.
! Check if the position j is doubly occupied : Not OK
! 0 -> 1 (SOMO)
! 1 0 (DOMO)
else if (iand(key_out(k,2),mask) /= 0_bit_kind) then
ok = .False.
return
! Position at j is unoccupied
! 0 -> 0 (SOMO)
! 0 0 (DOMO)
else
key_out(k,1) = ibset(key_out(k,1),j)
isparticleVMO = .True.
endif
if(isholeSOMO) then
! two possibilities
! particle is SOMO or VMO
if(isparticleSOMO) then
! SOMO -> SOMO
ex_type = 1
else
! SOMO -> VMO
ex_type = 3
endif
else
! two possibilities
! particle is SOMO or VMO
if(isparticleSOMO) then
! DOMO -> SOMO
ex_type = 4
else
! DOMO -> VMO
ex_type = 2
endif
endif
end
subroutine generate_all_singles_cfg(cfg,singles,n_singles,Nint)
implicit none
use bitmasks
BEGIN_DOC
! Generate all single excitation wrt a configuration
!
! n_singles : on input, max number of singles :
! elec_alpha_num * (mo_num - elec_beta_num)
! on output, number of generated singles
END_DOC
integer, intent(in) :: Nint
integer, intent(inout) :: n_singles
integer(bit_kind), intent(in) :: cfg(Nint,2)
integer(bit_kind), intent(out) :: singles(Nint,2,*)
integer :: i,k, n_singles_ma, i_hole, i_particle
integer(bit_kind) :: single(Nint,2)
logical :: i_ok
n_singles = 0
!TODO
!Make list of Somo and Domo for holes
!Make list of Unocc and Somo for particles
do i_hole = 1, mo_num
do i_particle = 1, mo_num
call do_single_excitation_cfg(cfg,single,i_hole,i_particle,i_ok)
if (i_ok) then
n_singles = n_singles + 1
do k=1,Nint
singles(k,1,n_singles) = single(k,1)
singles(k,2,n_singles) = single(k,2)
enddo
endif
enddo
enddo
end
subroutine generate_all_singles_cfg_with_type(cfgInp,singles,idxs_singles,pq_singles,ex_type_singles,n_singles,Nint)
implicit none
use bitmasks
BEGIN_DOC
! Generate all single excitation wrt a configuration
!
! n_singles : on input, max number of singles :
! elec_alpha_num * (mo_num - elec_beta_num)
! on output, number of generated singles
! ex_type_singles : on output contains type of excitations :
!
END_DOC
integer, intent(in) :: Nint
integer, intent(inout) :: n_singles
integer, intent(out) :: idxs_singles(*)
integer, intent(out) :: ex_type_singles(*)
integer, intent(out) :: pq_singles(2,*)
integer(bit_kind), intent(in) :: cfgInp(Nint,2)
integer(bit_kind), intent(out) :: singles(Nint,2,*)
integer(bit_kind) :: Jdet(Nint,2)
integer :: i,k, n_singles_ma, i_hole, i_particle, ex_type, addcfg
integer(bit_kind) :: single(Nint,2)
logical :: i_ok
n_singles = 0
!TODO
!Make list of Somo and Domo for holes
!Make list of Unocc and Somo for particles
do i_hole = 1+n_core_orb, n_core_orb + n_act_orb
do i_particle = 1+n_core_orb, n_core_orb + n_act_orb
if(i_hole .EQ. i_particle) cycle
addcfg = -1
call do_single_excitation_cfg_with_type(cfgInp,single,i_hole,i_particle,ex_type,i_ok)
if (i_ok) then
call binary_search_cfg(single,addcfg)
if(addcfg .EQ. -1) cycle
n_singles = n_singles + 1
do k=1,Nint
singles(k,1,n_singles) = single(k,1)
singles(k,2,n_singles) = single(k,2)
ex_type_singles(n_singles) = ex_type
pq_singles(1,n_singles) = i_hole ! p
pq_singles(2,n_singles) = i_particle ! q
idxs_singles(n_singles) = addcfg
enddo
endif
enddo
enddo
end

2
src/davidson/NEED
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@ -1 +1 @@
determinants
csf

6
src/davidson/davidson_parallel.irp.f
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@ -329,6 +329,7 @@ end subroutine
subroutine davidson_collector(zmq_to_qp_run_socket, zmq_socket_pull, v0, s0, sze, N_st)
use f77_zmq
implicit none
@ -377,7 +378,6 @@ end subroutine
subroutine H_S2_u_0_nstates_zmq(v_0,s_0,u_0,N_st,sze)
use omp_lib
use bitmasks
@ -538,6 +538,10 @@ subroutine H_S2_u_0_nstates_zmq(v_0,s_0,u_0,N_st,sze)
end
BEGIN_PROVIDER [ integer, nthreads_davidson ]
implicit none
BEGIN_DOC

495
src/davidson/davidson_parallel_nos2.irp.f Normal file
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@ -0,0 +1,495 @@
use bitmasks
use f77_zmq
subroutine davidson_nos2_slave_inproc(i)
implicit none
integer, intent(in) :: i
call davidson_nos2_run_slave(1,i)
end
subroutine davidson_nos2_slave_tcp(i)
implicit none
integer, intent(in) :: i
call davidson_nos2_run_slave(0,i)
end
subroutine davidson_nos2_run_slave(thread,iproc)
use f77_zmq
implicit none
BEGIN_DOC
! Slave routine for Davidson's diagonalization.
END_DOC
integer, intent(in) :: thread, iproc
integer :: worker_id, task_id, blockb
integer(ZMQ_PTR),external :: new_zmq_to_qp_run_socket
integer(ZMQ_PTR) :: zmq_to_qp_run_socket
integer(ZMQ_PTR), external :: new_zmq_push_socket
integer(ZMQ_PTR) :: zmq_socket_push
integer, external :: connect_to_taskserver
integer :: doexit, send, receive
zmq_to_qp_run_socket = new_zmq_to_qp_run_socket()
doexit = 0
if (connect_to_taskserver(zmq_to_qp_run_socket,worker_id,thread) == -1) then
doexit=1
endif
IRP_IF MPI
include 'mpif.h'
integer :: ierr
send = doexit
call MPI_AllReduce(send, receive, 1, MPI_INTEGER, MPI_SUM, MPI_COMM_WORLD, ierr)
if (ierr /= MPI_SUCCESS) then
doexit=1
endif
doexit = receive
IRP_ENDIF
if (doexit>0) then
call end_zmq_to_qp_run_socket(zmq_to_qp_run_socket)
return
endif
zmq_socket_push = new_zmq_push_socket(thread)
call davidson_nos2_slave_work(zmq_to_qp_run_socket, zmq_socket_push, N_states_diag, N_det, worker_id)
integer, external :: disconnect_from_taskserver
if (disconnect_from_taskserver(zmq_to_qp_run_socket,worker_id) == -1) then
call sleep(1)
if (disconnect_from_taskserver(zmq_to_qp_run_socket,worker_id) == -1) then
print *, irp_here, ': disconnect failed'
continue
endif
endif
call end_zmq_to_qp_run_socket(zmq_to_qp_run_socket)
call end_zmq_push_socket(zmq_socket_push)
end subroutine
subroutine davidson_nos2_slave_work(zmq_to_qp_run_socket, zmq_socket_push, N_st, sze, worker_id)
use f77_zmq
implicit none
integer(ZMQ_PTR),intent(in) :: zmq_to_qp_run_socket
integer(ZMQ_PTR),intent(in) :: zmq_socket_push
integer,intent(in) :: worker_id, N_st, sze
integer :: task_id
character*(512) :: msg
integer :: imin, imax, ishift, istep
integer, allocatable :: psi_det_read(:,:,:)
double precision, allocatable :: v_t(:,:), u_t(:,:)
!DIR$ ATTRIBUTES ALIGN : $IRP_ALIGN :: u_t, v_t
! Get wave function (u_t)
! -----------------------
integer :: rc, ni, nj
integer*8 :: rc8
integer :: N_states_read, N_det_read, psi_det_size_read
integer :: N_det_selectors_read, N_det_generators_read
integer, external :: zmq_get_dvector
integer, external :: zmq_get_dmatrix
PROVIDE psi_det_beta_unique psi_bilinear_matrix_order_transp_reverse psi_det_alpha_unique
PROVIDE psi_bilinear_matrix_transp_values psi_bilinear_matrix_values psi_bilinear_matrix_columns_loc
PROVIDE ref_bitmask_energy nproc
PROVIDE mpi_initialized
allocate(u_t(N_st,N_det))
! Warning : dimensions are modified for efficiency, It is OK since we get the
! full matrix
if (size(u_t,kind=8) < 8388608_8) then
ni = size(u_t)
nj = 1
else
ni = 8388608
nj = int(size(u_t,kind=8)/8388608_8,4) + 1
endif
do while (zmq_get_dmatrix(zmq_to_qp_run_socket, worker_id, 'u_t', u_t, ni, nj, size(u_t,kind=8)) == -1)
print *, 'mpi_rank, N_states_diag, N_det'
print *, mpi_rank, N_states_diag, N_det
stop 'u_t'
enddo
IRP_IF MPI
include 'mpif.h'
integer :: ierr
call broadcast_chunks_double(u_t,size(u_t,kind=8))
IRP_ENDIF
! Run tasks
! ---------
logical :: sending
sending=.False.
allocate(v_t(N_st,N_det))
do
integer, external :: get_task_from_taskserver
integer, external :: task_done_to_taskserver
if (get_task_from_taskserver(zmq_to_qp_run_socket,worker_id, task_id, msg) == -1) then
exit
endif
if(task_id == 0) exit
read (msg,*) imin, imax, ishift, istep
integer :: k
do k=imin,imax
v_t(:,k) = 0.d0
enddo
call H_u_0_nstates_openmp_work(v_t,u_t,N_st,N_det,imin,imax,ishift,istep)
if (task_done_to_taskserver(zmq_to_qp_run_socket,worker_id,task_id) == -1) then
print *, irp_here, 'Unable to send task_done'
endif
call davidson_push_results_async_recv(zmq_socket_push, sending)
call davidson_nos2_push_results_async_send(zmq_socket_push, v_t, imin, imax, task_id, sending)
end do
deallocate(u_t,v_t)
call davidson_push_results_async_recv(zmq_socket_push, sending)
end subroutine
subroutine davidson_nos2_push_results(zmq_socket_push, v_t, imin, imax, task_id)
use f77_zmq
implicit none
BEGIN_DOC
! Push the results of $H | U \rangle$ from a worker to the master.
END_DOC
integer(ZMQ_PTR) ,intent(in) :: zmq_socket_push
integer ,intent(in) :: task_id, imin, imax
double precision ,intent(in) :: v_t(N_states_diag,N_det)
integer :: rc, sz
integer*8 :: rc8
sz = (imax-imin+1)*N_states_diag
rc = f77_zmq_send( zmq_socket_push, task_id, 4, ZMQ_SNDMORE)
if(rc /= 4) stop 'davidson_nos2_push_results failed to push task_id'
rc = f77_zmq_send( zmq_socket_push, imin, 4, ZMQ_SNDMORE)
if(rc /= 4) stop 'davidson_nos2_push_results failed to push imin'
rc = f77_zmq_send( zmq_socket_push, imax, 4, ZMQ_SNDMORE)
if(rc /= 4) stop 'davidson_nos2_push_results failed to push imax'
rc8 = f77_zmq_send8( zmq_socket_push, v_t(1,imin), 8_8*sz, ZMQ_SNDMORE)
if(rc8 /= 8_8*sz) stop 'davidson_nos2_push_results failed to push vt'
! Activate is zmq_socket_push is a REQ
IRP_IF ZMQ_PUSH
IRP_ELSE
character*(2) :: ok
rc = f77_zmq_recv( zmq_socket_push, ok, 2, 0)
if ((rc /= 2).and.(ok(1:2)/='ok')) then
print *, irp_here, ': f77_zmq_recv( zmq_socket_push, ok, 2, 0)'
stop -1
endif
IRP_ENDIF
end subroutine
subroutine davidson_nos2_push_results_async_send(zmq_socket_push, v_t, imin, imax, task_id,sending)
use f77_zmq
implicit none
BEGIN_DOC
! Push the results of $H | U \rangle$ from a worker to the master.
END_DOC
integer(ZMQ_PTR) ,intent(in) :: zmq_socket_push
integer ,intent(in) :: task_id, imin, imax
double precision ,intent(in) :: v_t(N_states_diag,N_det)
logical ,intent(inout) :: sending
integer :: rc, sz
integer*8 :: rc8
if (sending) then
print *, irp_here, ': sending=true'
stop -1
endif
sending = .True.
sz = (imax-imin+1)*N_states_diag
rc = f77_zmq_send( zmq_socket_push, task_id, 4, ZMQ_SNDMORE)
if(rc /= 4) stop 'davidson_nos2_push_results failed to push task_id'
rc = f77_zmq_send( zmq_socket_push, imin, 4, ZMQ_SNDMORE)
if(rc /= 4) stop 'davidson_nos2_push_results failed to push imin'
rc = f77_zmq_send( zmq_socket_push, imax, 4, ZMQ_SNDMORE)
if(rc /= 4) stop 'davidson_nos2_push_results failed to push imax'
rc8 = f77_zmq_send8( zmq_socket_push, v_t(1,imin), 8_8*sz, ZMQ_SNDMORE)
if(rc8 /= 8_8*sz) stop 'davidson_nos2_push_results failed to push vt'
end subroutine
subroutine davidson_nos2_pull_results(zmq_socket_pull, v_t, imin, imax, task_id)
use f77_zmq
implicit none
BEGIN_DOC
! Pull the results of $H | U \rangle$ on the master.
END_DOC
integer(ZMQ_PTR) ,intent(in) :: zmq_socket_pull
integer ,intent(out) :: task_id, imin, imax
double precision ,intent(out) :: v_t(N_states_diag,N_det)
integer :: rc, sz
integer*8 :: rc8
rc = f77_zmq_recv( zmq_socket_pull, task_id, 4, 0)
if(rc /= 4) stop 'davidson_nos2_pull_results failed to pull task_id'
rc = f77_zmq_recv( zmq_socket_pull, imin, 4, 0)
if(rc /= 4) stop 'davidson_nos2_pull_results failed to pull imin'
rc = f77_zmq_recv( zmq_socket_pull, imax, 4, 0)
if(rc /= 4) stop 'davidson_nos2_pull_results failed to pull imax'
sz = (imax-imin+1)*N_states_diag
rc8 = f77_zmq_recv8( zmq_socket_pull, v_t(1,imin), 8_8*sz, 0)
if(rc8 /= 8*sz) stop 'davidson_nos2_pull_results failed to pull v_t'
! Activate if zmq_socket_pull is a REP
IRP_IF ZMQ_PUSH
IRP_ELSE
rc = f77_zmq_send( zmq_socket_pull, 'ok', 2, 0)
if (rc /= 2) then
print *, irp_here, ' : f77_zmq_send (zmq_socket_pull,...'
stop -1
endif
IRP_ENDIF
end subroutine
subroutine davidson_nos2_collector(zmq_to_qp_run_socket, zmq_socket_pull, v0, sze, N_st)
use f77_zmq
implicit none
BEGIN_DOC
! Routine collecting the results of the workers in Davidson's algorithm.
END_DOC
integer(ZMQ_PTR), intent(in) :: zmq_socket_pull
integer, intent(in) :: sze, N_st
integer(ZMQ_PTR), intent(in) :: zmq_to_qp_run_socket
double precision ,intent(inout) :: v0(sze, N_st)
integer :: more, task_id, imin, imax
double precision, allocatable :: v_t(:,:)
logical :: sending
integer :: i,j
integer, external :: zmq_delete_task_async_send
integer, external :: zmq_delete_task_async_recv
allocate(v_t(N_st,N_det))
v0 = 0.d0
more = 1
sending = .False.
do while (more == 1)
call davidson_nos2_pull_results(zmq_socket_pull, v_t, imin, imax, task_id)
if (zmq_delete_task_async_send(zmq_to_qp_run_socket,task_id,sending) == -1) then
stop 'davidson: Unable to delete task (send)'
endif
do j=1,N_st
do i=imin,imax
v0(i,j) = v0(i,j) + v_t(j,i)
enddo
enddo
if (zmq_delete_task_async_recv(zmq_to_qp_run_socket,more,sending) == -1) then
stop 'davidson: Unable to delete task (recv)'
endif
end do
deallocate(v_t)
end subroutine
subroutine H_u_0_nstates_zmq(v_0,u_0,N_st,sze)
use omp_lib
use bitmasks
use f77_zmq
implicit none
BEGIN_DOC
! Computes $v_0 = H | u_0\rangle$
!
! n : number of determinants
!
! H_jj : array of $\langle j | H | j \rangle$
END_DOC
integer, intent(in) :: N_st, sze
double precision, intent(out) :: v_0(sze,N_st)
double precision, intent(inout):: u_0(sze,N_st)
integer :: i,j,k
integer :: ithread
double precision, allocatable :: u_t(:,:)
!DIR$ ATTRIBUTES ALIGN : $IRP_ALIGN :: u_t
integer(ZMQ_PTR) :: zmq_to_qp_run_socket, zmq_socket_pull
PROVIDE psi_det_beta_unique psi_bilinear_matrix_order_transp_reverse psi_det_alpha_unique
PROVIDE psi_bilinear_matrix_transp_values psi_bilinear_matrix_values psi_bilinear_matrix_columns_loc
PROVIDE ref_bitmask_energy nproc
PROVIDE mpi_initialized
call new_parallel_job(zmq_to_qp_run_socket,zmq_socket_pull,'davidson')
! integer :: N_states_diag_save
! N_states_diag_save = N_states_diag
! N_states_diag = N_st
if (zmq_put_N_states_diag(zmq_to_qp_run_socket, 1) == -1) then
stop 'Unable to put N_states_diag on ZMQ server'
endif
if (zmq_put_psi(zmq_to_qp_run_socket,1) == -1) then
stop 'Unable to put psi on ZMQ server'
endif
energy = 0.d0
if (zmq_put_dvector(zmq_to_qp_run_socket,1,'energy',energy,size(energy)) == -1) then
stop 'Unable to put energy on ZMQ server'
endif
! Create tasks
! ============
integer :: istep, imin, imax, ishift, ipos
integer, external :: add_task_to_taskserver
integer, parameter :: tasksize=20000
character*(100000) :: task
istep=1
ishift=0
imin=1
ipos=1
do imin=1,N_det,tasksize
imax = min(N_det,imin-1+tasksize)
if (imin==1) then
istep = 2
else
istep = 1
endif
do ishift=0,istep-1
write(task(ipos:ipos+50),'(4(I11,1X),1X,1A)') imin, imax, ishift, istep, '|'
ipos = ipos+50
if (ipos > 100000-50) then
if (add_task_to_taskserver(zmq_to_qp_run_socket,trim(task(1:ipos))) == -1) then
stop 'Unable to add task'
endif
ipos=1
endif
enddo
enddo
if (ipos > 1) then
if (add_task_to_taskserver(zmq_to_qp_run_socket,trim(task(1:ipos))) == -1) then
stop 'Unable to add task'
endif
ipos=1
endif
allocate(u_t(N_st,N_det))
do k=1,N_st
call dset_order(u_0(1,k),psi_bilinear_matrix_order,N_det)
enddo
call dtranspose( &
u_0, &
size(u_0, 1), &
u_t, &
size(u_t, 1), &
N_det, N_st)
ASSERT (N_st == N_states_diag)
ASSERT (sze >= N_det)
integer :: rc, ni, nj
integer*8 :: rc8
double precision :: energy(N_st)
integer, external :: zmq_put_dvector, zmq_put_psi, zmq_put_N_states_diag
integer, external :: zmq_put_dmatrix
if (size(u_t) < 8388608) then
ni = size(u_t)
nj = 1
else
ni = 8388608
nj = size(u_t)/8388608 + 1
endif
! Warning : dimensions are modified for efficiency, It is OK since we get the
! full matrix
if (zmq_put_dmatrix(zmq_to_qp_run_socket, 1, 'u_t', u_t, ni, nj, size(u_t,kind=8)) == -1) then
stop 'Unable to put u_t on ZMQ server'
endif
deallocate(u_t)
integer, external :: zmq_set_running
if (zmq_set_running(zmq_to_qp_run_socket) == -1) then
print *, irp_here, ': Failed in zmq_set_running'
endif
call omp_set_max_active_levels(4)
!$OMP PARALLEL DEFAULT(shared) NUM_THREADS(2) PRIVATE(ithread)
ithread = omp_get_thread_num()
if (ithread == 0 ) then
call davidson_nos2_collector(zmq_to_qp_run_socket, zmq_socket_pull, v_0, N_det, N_st)
else
call davidson_nos2_slave_inproc(1)
endif
!$OMP END PARALLEL
call end_parallel_job(zmq_to_qp_run_socket, zmq_socket_pull, 'davidson')
!$OMP PARALLEL
!$OMP SINGLE
do k=1,N_st
!$OMP TASK DEFAULT(SHARED) FIRSTPRIVATE(k,N_det)
call dset_order(v_0(1,k),psi_bilinear_matrix_order_reverse,N_det)
!$OMP END TASK
!$OMP TASK DEFAULT(SHARED) FIRSTPRIVATE(k,N_det)
call dset_order(u_0(1,k),psi_bilinear_matrix_order_reverse,N_det)
!$OMP END TASK
enddo
!$OMP END SINGLE
!$OMP TASKWAIT
!$OMP END PARALLEL
! N_states_diag = N_states_diag_save
! SOFT_TOUCH N_states_diag
end

568
src/davidson/diagonalization_h_dressed.irp.f Normal file
View File

@ -0,0 +1,568 @@
subroutine davidson_diag_h(dets_in,u_in,dim_in,energies,sze,N_st,N_st_diag,Nint,dressing_state,converged)
use bitmasks
implicit none
BEGIN_DOC
! Davidson diagonalization.
!
! dets_in : bitmasks corresponding to determinants
!
! u_in : guess coefficients on the various states. Overwritten
! on exit
!
! dim_in : leftmost dimension of u_in
!
! sze : Number of determinants
!
! N_st : Number of eigenstates
!
! Initial guess vectors are not necessarily orthonormal
END_DOC
integer, intent(in) :: dim_in, sze, N_st, N_st_diag, Nint
integer(bit_kind), intent(in) :: dets_in(Nint,2,sze)
double precision, intent(inout) :: u_in(dim_in,N_st_diag)
double precision, intent(out) :: energies(N_st_diag)
integer, intent(in) :: dressing_state
logical, intent(out) :: converged
double precision, allocatable :: H_jj(:)
double precision, external :: diag_H_mat_elem, diag_S_mat_elem
integer :: i,k
ASSERT (N_st > 0)
ASSERT (sze > 0)
ASSERT (Nint > 0)
ASSERT (Nint == N_int)
PROVIDE mo_two_e_integrals_in_map
allocate(H_jj(sze))
H_jj(1) = diag_h_mat_elem(dets_in(1,1,1),Nint)
!$OMP PARALLEL DEFAULT(NONE) &
!$OMP SHARED(sze,H_jj, dets_in,Nint) &
!$OMP PRIVATE(i)
!$OMP DO SCHEDULE(static)
do i=2,sze
H_jj(i) = diag_H_mat_elem(dets_in(1,1,i),Nint)
enddo
!$OMP END DO
!$OMP END PARALLEL
if (dressing_state > 0) then
do k=1,N_st
do i=1,sze
H_jj(i) += u_in(i,k) * dressing_column_h(i,k)
enddo
enddo
endif
call davidson_diag_hjj(dets_in,u_in,H_jj,energies,dim_in,sze,N_st,N_st_diag,Nint,dressing_state,converged)
deallocate (H_jj)
end
subroutine davidson_diag_hjj(dets_in,u_in,H_jj,energies,dim_in,sze,N_st,N_st_diag_in,Nint,dressing_state,converged)
use bitmasks
use mmap_module
implicit none
BEGIN_DOC
! Davidson diagonalization with specific diagonal elements of the H matrix
!
! H_jj : specific diagonal H matrix elements to diagonalize de Davidson
!
! dets_in : bitmasks corresponding to determinants
!
! u_in : guess coefficients on the various states. Overwritten
! on exit
!
! dim_in : leftmost dimension of u_in
!
! sze : Number of determinants
!
! N_st : Number of eigenstates
!
! N_st_diag_in : Number of states in which H is diagonalized. Assumed > sze
!
! Initial guess vectors are not necessarily orthonormal
END_DOC
integer, intent(in) :: dim_in, sze, N_st, N_st_diag_in, Nint
integer(bit_kind), intent(in) :: dets_in(Nint,2,sze)
double precision, intent(in) :: H_jj(sze)
integer, intent(in) :: dressing_state
double precision, intent(inout) :: u_in(dim_in,N_st_diag_in)
double precision, intent(out) :: energies(N_st_diag_in)
integer :: iter, N_st_diag
integer :: i,j,k,l,m
logical, intent(inout) :: converged
double precision, external :: u_dot_v, u_dot_u
integer :: k_pairs, kl
integer :: iter2, itertot
double precision, allocatable :: y(:,:), h(:,:), lambda(:)
double precision, allocatable :: s_tmp(:,:)
double precision :: diag_h_mat_elem
double precision, allocatable :: residual_norm(:)
character*(16384) :: write_buffer
double precision :: to_print(2,N_st)
double precision :: cpu, wall
integer :: shift, shift2, itermax, istate
double precision :: r1, r2, alpha
logical :: state_ok(N_st_diag_in*davidson_sze_max)
integer :: nproc_target
integer :: order(N_st_diag_in)
double precision :: cmax
double precision, allocatable :: U(:,:), overlap(:,:)
double precision, pointer :: W(:,:)
logical :: disk_based
double precision :: energy_shift(N_st_diag_in*davidson_sze_max)
include 'constants.include.F'
N_st_diag = N_st_diag_in
!DIR$ ATTRIBUTES ALIGN : $IRP_ALIGN :: U, W, S, y, S_d, h, lambda
if (N_st_diag*3 > sze) then
print *, 'error in Davidson :'
print *, 'Increase n_det_max_full to ', N_st_diag*3
stop -1
endif
itermax = max(2,min(davidson_sze_max, sze/N_st_diag))+1
itertot = 0
if (state_following) then
allocate(overlap(N_st_diag*itermax, N_st_diag*itermax))
else
allocate(overlap(1,1)) ! avoid 'if' for deallocate
endif
overlap = 0.d0
PROVIDE nuclear_repulsion expected_s2 psi_bilinear_matrix_order psi_bilinear_matrix_order_reverse threshold_davidson_pt2 threshold_davidson_from_pt2
call write_time(6)
write(6,'(A)') ''
write(6,'(A)') 'Davidson Diagonalization'
write(6,'(A)') '------------------------'
write(6,'(A)') ''
! Find max number of cores to fit in memory
! -----------------------------------------
nproc_target = nproc
double precision :: rss
integer :: maxab
maxab = max(N_det_alpha_unique, N_det_beta_unique)+1
m=1
disk_based = .False.
call resident_memory(rss)
do
r1 = 8.d0 * &! bytes
( dble(sze)*(N_st_diag*itermax) &! U
+ 1.0d0*dble(sze*m)*(N_st_diag*itermax) &! W
+ 3.0d0*(N_st_diag*itermax)**2 &! h,y,s_tmp
+ 1.d0*(N_st_diag*itermax) &! lambda
+ 1.d0*(N_st_diag) &! residual_norm
! In H_u_0_nstates_zmq
+ 2.d0*(N_st_diag*N_det) &! u_t, v_t, on collector
+ 2.d0*(N_st_diag*N_det) &! u_t, v_t, on slave
+ 0.5d0*maxab &! idx0 in H_u_0_nstates_openmp_work_*
+ nproc_target * &! In OMP section
( 1.d0*(N_int*maxab) &! buffer
+ 3.5d0*(maxab) ) &! singles_a, singles_b, doubles, idx
) / 1024.d0**3
if (nproc_target == 0) then
call check_mem(r1,irp_here)
nproc_target = 1
exit
endif
if (r1+rss < qp_max_mem) then
exit
endif
if (itermax > 4) then
itermax = itermax - 1
else if (m==1.and.disk_based_davidson) then
m=0
disk_based = .True.
itermax = 6
else
nproc_target = nproc_target - 1
endif
enddo
nthreads_davidson = nproc_target
TOUCH nthreads_davidson
call write_int(6,N_st,'Number of states')
call write_int(6,N_st_diag,'Number of states in diagonalization')
call write_int(6,sze,'Number of determinants')
call write_int(6,nproc_target,'Number of threads for diagonalization')
call write_double(6, r1, 'Memory(Gb)')
if (disk_based) then
print *, 'Using swap space to reduce RAM'
endif
!---------------
write(6,'(A)') ''
write_buffer = '====='
do i=1,N_st
write_buffer = trim(write_buffer)//' ================ ==========='
enddo
write(6,'(A)') write_buffer(1:6+41*N_st)
write_buffer = 'Iter'
do i=1,N_st
write_buffer = trim(write_buffer)//' Energy Residual '
enddo
write(6,'(A)') write_buffer(1:6+41*N_st)
write_buffer = '====='
do i=1,N_st
write_buffer = trim(write_buffer)//' ================ ==========='
enddo
write(6,'(A)') write_buffer(1:6+41*N_st)
if (disk_based) then
! Create memory-mapped files for W and S
type(c_ptr) :: ptr_w, ptr_s
integer :: fd_s, fd_w
call mmap(trim(ezfio_work_dir)//'davidson_w', (/int(sze,8),int(N_st_diag*itermax,8)/),&
8, fd_w, .False., ptr_w)
call c_f_pointer(ptr_w, w, (/sze,N_st_diag*itermax/))
else
allocate(W(sze,N_st_diag*itermax))
endif
allocate( &
! Large
U(sze,N_st_diag*itermax), &
! Small
h(N_st_diag*itermax,N_st_diag*itermax), &
y(N_st_diag*itermax,N_st_diag*itermax), &
s_tmp(N_st_diag*itermax,N_st_diag*itermax), &
residual_norm(N_st_diag), &
lambda(N_st_diag*itermax))
h = 0.d0
U = 0.d0
y = 0.d0
s_tmp = 0.d0
ASSERT (N_st > 0)
ASSERT (N_st_diag >= N_st)
ASSERT (sze > 0)
ASSERT (Nint > 0)
ASSERT (Nint == N_int)
! Davidson iterations
! ===================
converged = .False.
do k=N_st+1,N_st_diag
do i=1,sze
call random_number(r1)
call random_number(r2)
r1 = dsqrt(-2.d0*dlog(r1))
r2 = dtwo_pi*r2
u_in(i,k) = r1*dcos(r2) * u_in(i,k-N_st)
enddo
u_in(k,k) = u_in(k,k) + 10.d0
enddo
do k=1,N_st_diag
call normalize(u_in(1,k),sze)
enddo
do k=1,N_st_diag
do i=1,sze
U(i,k) = u_in(i,k)
enddo
enddo
do while (.not.converged)
itertot = itertot+1
if (itertot == 8) then
exit
endif
do iter=1,itermax-1
shift = N_st_diag*(iter-1)
shift2 = N_st_diag*iter
if ((iter > 1).or.(itertot == 1)) then
! Compute |W_k> = \sum_i |i><i|H|u_k>
! -----------------------------------
if (disk_based) then
call ortho_qr_unblocked(U,size(U,1),sze,shift2)
call ortho_qr_unblocked(U,size(U,1),sze,shift2)
else
call ortho_qr(U,size(U,1),sze,shift2)
call ortho_qr(U,size(U,1),sze,shift2)
endif
if ((sze > 100000).and.distributed_davidson) then
call H_u_0_nstates_zmq (W(1,shift+1),U(1,shift+1),N_st_diag,sze)
else
call H_u_0_nstates_openmp(W(1,shift+1),U(1,shift+1),N_st_diag,sze)
endif
else
! Already computed in update below
continue
endif
if (dressing_state > 0) then
if (N_st == 1) then
l = dressed_column_idx(1)
double precision :: f
f = 1.0d0/psi_coef(l,1)
do istate=1,N_st_diag
do i=1,sze
W(i,shift+istate) += dressing_column_h(i,1) *f * U(l,shift+istate)
W(l,shift+istate) += dressing_column_h(i,1) *f * U(i,shift+istate)
enddo
enddo
else
call dgemm('T','N', N_st, N_st_diag, sze, 1.d0, &
psi_coef, size(psi_coef,1), &
U(1,shift+1), size(U,1), 0.d0, s_tmp, size(s_tmp,1))
call dgemm('N','N', sze, N_st_diag, N_st, 1.0d0, &
dressing_column_h, size(dressing_column_h,1), s_tmp, size(s_tmp,1), &
1.d0, W(1,shift+1), size(W,1))
call dgemm('T','N', N_st, N_st_diag, sze, 1.d0, &
dressing_column_h, size(dressing_column_h,1), &
U(1,shift+1), size(U,1), 0.d0, s_tmp, size(s_tmp,1))
call dgemm('N','N', sze, N_st_diag, N_st, 1.0d0, &
psi_coef, size(psi_coef,1), s_tmp, size(s_tmp,1), &
1.d0, W(1,shift+1), size(W,1))
endif
endif
! Compute h_kl = <u_k | W_l> = <u_k| H |u_l>
! -------------------------------------------
call dgemm('T','N', shift2, shift2, sze, &
1.d0, U, size(U,1), W, size(W,1), &
0.d0, h, size(h,1))
! Diagonalize h
! ---------------
call lapack_diag(lambda,y,h,size(h,1),shift2)
! Compute Energy for each eigenvector
! -----------------------------------
call dgemm('N','N',shift2,shift2,shift2, &
1.d0, h, size(h,1), y, size(y,1), &
0.d0, s_tmp, size(s_tmp,1))
call dgemm('T','N',shift2,shift2,shift2, &
1.d0, y, size(y,1), s_tmp, size(s_tmp,1), &
0.d0, h, size(h,1))
do k=1,shift2
lambda(k) = h(k,k)
enddo
if (state_following) then
overlap = -1.d0
do k=1,shift2
do i=1,shift2
overlap(k,i) = dabs(y(k,i))
enddo
enddo
do k=1,N_st
cmax = -1.d0
do i=1,N_st
if (overlap(i,k) > cmax) then
cmax = overlap(i,k)
order(k) = i
endif
enddo
do i=1,N_st_diag
overlap(order(k),i) = -1.d0
enddo
enddo
overlap = y
do k=1,N_st
l = order(k)
if (k /= l) then
y(1:shift2,k) = overlap(1:shift2,l)
endif
enddo
do k=1,N_st
overlap(k,1) = lambda(k)
enddo
endif
! Express eigenvectors of h in the determinant basis
! --------------------------------------------------
call dgemm('N','N', sze, N_st_diag, shift2, &
1.d0, U, size(U,1), y, size(y,1), 0.d0, U(1,shift2+1), size(U,1))
call dgemm('N','N', sze, N_st_diag, shift2, &
1.d0, W, size(W,1), y, size(y,1), 0.d0, W(1,shift2+1), size(W,1))
! Compute residual vector and davidson step
! -----------------------------------------
!$OMP PARALLEL DO DEFAULT(SHARED) PRIVATE(i,k)
do k=1,N_st_diag
do i=1,sze
U(i,shift2+k) = &
(lambda(k) * U(i,shift2+k) - W(i,shift2+k) ) &
/max(H_jj(i) - lambda (k),1.d-2)
enddo
if (k <= N_st) then
residual_norm(k) = u_dot_u(U(1,shift2+k),sze)
to_print(1,k) = lambda(k) + nuclear_repulsion
to_print(2,k) = residual_norm(k)
endif
enddo
!$OMP END PARALLEL DO
if ((itertot>1).and.(iter == 1)) then
!don't print
continue
else
write(*,'(1X,I3,1X,100(1X,F16.10,1X,E11.3))') iter-1, to_print(1:2,1:N_st)
endif
! Check convergence
if (iter > 1) then
if (threshold_davidson_from_pt2) then
converged = dabs(maxval(residual_norm(1:N_st))) < threshold_davidson_pt2
else
converged = dabs(maxval(residual_norm(1:N_st))) < threshold_davidson
endif
endif
do k=1,N_st
if (residual_norm(k) > 1.e8) then
print *, 'Davidson failed'
stop -1
endif
enddo
if (converged) then
exit
endif
logical, external :: qp_stop
if (qp_stop()) then
converged = .True.
exit
endif
enddo
! Re-contract U and update W
! --------------------------------
call dgemm('N','N', sze, N_st_diag, shift2, 1.d0, &
W, size(W,1), y, size(y,1), 0.d0, u_in, size(u_in,1))
do k=1,N_st_diag
do i=1,sze
W(i,k) = u_in(i,k)
enddo
enddo
call dgemm('N','N', sze, N_st_diag, shift2, 1.d0, &
U, size(U,1), y, size(y,1), 0.d0, u_in, size(u_in,1))
do k=1,N_st_diag
do i=1,sze
U(i,k) = u_in(i,k)
enddo
enddo
if (disk_based) then
call ortho_qr_unblocked(U,size(U,1),sze,N_st_diag)
call ortho_qr_unblocked(U,size(U,1),sze,N_st_diag)
else
call ortho_qr(U,size(U,1),sze,N_st_diag)
call ortho_qr(U,size(U,1),sze,N_st_diag)
endif
! Adjust the phase
do j=1,N_st_diag
! Find first non-zero
k=1
do while ((k<sze).and.(U(k,j) == 0.d0))
k = k+1
enddo
! Check sign
if (U(k,j) * u_in(k,j) < 0.d0) then
do i=1,sze
W(i,j) = -W(i,j)
enddo
endif
enddo
enddo
call nullify_small_elements(sze,N_st_diag,U,size(U,1),threshold_davidson_pt2)
do k=1,N_st_diag
do i=1,sze
u_in(i,k) = U(i,k)
enddo
enddo
do k=1,N_st_diag
energies(k) = lambda(k)
enddo
write_buffer = '======'
do i=1,N_st
write_buffer = trim(write_buffer)//' ================ ==========='
enddo
write(6,'(A)') trim(write_buffer)
write(6,'(A)') ''
call write_time(6)
if (disk_based)then
! Remove temp files
integer, external :: getUnitAndOpen
call munmap( (/int(sze,8),int(N_st_diag*itermax,8)/), 8, fd_w, ptr_w )
fd_w = getUnitAndOpen(trim(ezfio_work_dir)//'davidson_w','r')
close(fd_w,status='delete')
else
deallocate(W)
endif
deallocate ( &
residual_norm, &
U, overlap, &
h, y, s_tmp, &
lambda &
)
FREE nthreads_davidson
end

57
src/davidson/diagonalize_ci.irp.f
View File

@ -57,9 +57,15 @@ END_PROVIDER
if (diag_algorithm == "Davidson") then
call davidson_diag_HS2(psi_det,CI_eigenvectors, CI_s2, &
if (s2_eig.and.only_expected_s2) then
call davidson_diag_H(psi_det,CI_eigenvectors, &
size(CI_eigenvectors,1),CI_electronic_energy, &
N_det,min(N_det,N_states),min(N_det,N_states_diag),N_int,0,converged)
else
call davidson_diag_HS2(psi_det,CI_eigenvectors, CI_s2, &
size(CI_eigenvectors,1),CI_electronic_energy, &
N_det,min(N_det,N_states),min(N_det,N_states_diag),N_int,0,converged)
endif
integer :: N_states_diag_save
N_states_diag_save = N_states_diag
@ -71,25 +77,48 @@ END_PROVIDER
N_states_diag *= 2
TOUCH N_states_diag
allocate (CI_electronic_energy_tmp (N_states_diag) )
allocate (CI_eigenvectors_tmp (N_det,N_states_diag) )
allocate (CI_s2_tmp (N_states_diag) )
if (s2_eig.and.only_expected_s2) then
CI_electronic_energy_tmp(1:N_states_diag_save) = CI_electronic_energy(1:N_states_diag_save)
CI_eigenvectors_tmp(1:N_det,1:N_states_diag_save) = CI_eigenvectors(1:N_det,1:N_states_diag_save)
CI_s2_tmp(1:N_states_diag_save) = CI_s2(1:N_states_diag_save)
allocate (CI_electronic_energy_tmp (N_states_diag) )
allocate (CI_eigenvectors_tmp (N_det,N_states_diag) )
call davidson_diag_HS2(psi_det,CI_eigenvectors_tmp, CI_s2_tmp, &
CI_electronic_energy_tmp(1:N_states_diag_save) = CI_electronic_energy(1:N_states_diag_save)
CI_eigenvectors_tmp(1:N_det,1:N_states_diag_save) = CI_eigenvectors(1:N_det,1:N_states_diag_save)
call davidson_diag_H(psi_det,CI_eigenvectors_tmp, &
size(CI_eigenvectors_tmp,1),CI_electronic_energy_tmp, &
N_det,min(N_det,N_states),min(N_det,N_states_diag),N_int,0,converged)
CI_electronic_energy(1:N_states_diag_save) = CI_electronic_energy_tmp(1:N_states_diag_save)
CI_eigenvectors(1:N_det,1:N_states_diag_save) = CI_eigenvectors_tmp(1:N_det,1:N_states_diag_save)
CI_s2(1:N_states_diag_save) = CI_s2_tmp(1:N_states_diag_save)
CI_electronic_energy(1:N_states_diag_save) = CI_electronic_energy_tmp(1:N_states_diag_save)
CI_eigenvectors(1:N_det,1:N_states_diag_save) = CI_eigenvectors_tmp(1:N_det,1:N_states_diag_save)
deallocate (CI_electronic_energy_tmp)
deallocate (CI_eigenvectors_tmp)
else
allocate (CI_electronic_energy_tmp (N_states_diag) )
allocate (CI_eigenvectors_tmp (N_det,N_states_diag) )
allocate (CI_s2_tmp (N_states_diag) )
CI_electronic_energy_tmp(1:N_states_diag_save) = CI_electronic_energy(1:N_states_diag_save)
CI_eigenvectors_tmp(1:N_det,1:N_states_diag_save) = CI_eigenvectors(1:N_det,1:N_states_diag_save)
CI_s2_tmp(1:N_states_diag_save) = CI_s2(1:N_states_diag_save)
call davidson_diag_HS2(psi_det,CI_eigenvectors_tmp, CI_s2_tmp, &
size(CI_eigenvectors_tmp,1),CI_electronic_energy_tmp, &
N_det,min(N_det,N_states),min(N_det,N_states_diag),N_int,0,converged)
CI_electronic_energy(1:N_states_diag_save) = CI_electronic_energy_tmp(1:N_states_diag_save)
CI_eigenvectors(1:N_det,1:N_states_diag_save) = CI_eigenvectors_tmp(1:N_det,1:N_states_diag_save)
CI_s2(1:N_states_diag_save) = CI_s2_tmp(1:N_states_diag_save)
deallocate (CI_electronic_energy_tmp)
deallocate (CI_eigenvectors_tmp)
deallocate (CI_s2_tmp)
endif
deallocate (CI_electronic_energy_tmp)
deallocate (CI_eigenvectors_tmp)
deallocate (CI_s2_tmp)
enddo
if (N_states_diag > N_states_diag_save) then
N_states_diag = N_states_diag_save

109
src/davidson/u0_h_u0.irp.f
View File

@ -1,72 +1,43 @@
BEGIN_PROVIDER [ double precision, psi_energy, (N_states) ]
&BEGIN_PROVIDER [ double precision, psi_s2, (N_states) ]
implicit none
BEGIN_DOC
! psi_energy(i) = $\langle \Psi_i | H | \Psi_i \rangle$
!
! psi_s2(i) = $\langle \Psi_i | S^2 | \Psi_i \rangle$
END_DOC
call u_0_H_u_0(psi_energy,psi_s2,psi_coef,N_det,psi_det,N_int,N_states,psi_det_size)
integer :: i
do i=N_det+1,N_states
psi_energy(i) = 0.d0
psi_s2(i) = 0.d0
enddo
END_PROVIDER
BEGIN_PROVIDER [ double precision, psi_energy_with_nucl_rep, (N_states) ]
implicit none
BEGIN_DOC
! Energy of the wave function with the nuclear repulsion energy.
END_DOC
psi_energy_with_nucl_rep(1:N_states) = psi_energy(1:N_states) + nuclear_repulsion
END_PROVIDER
subroutine u_0_H_u_0(e_0,s_0,u_0,n,keys_tmp,Nint,N_st,sze)
subroutine u_0_H_u_0(e_0,u_0,n,keys_tmp,Nint,N_st,sze)
use bitmasks
implicit none
BEGIN_DOC
! Computes $E_0 = \frac{\langle u_0 | H | u_0 \rangle}{\langle u_0 | u_0 \rangle}$
!
! and $S_0 = \frac{\langle u_0 | S^2 | u_0 \rangle}{\langle u_0 | u_0 \rangle}$
!
! n : number of determinants
!
END_DOC
integer, intent(in) :: n,Nint, N_st, sze
double precision, intent(out) :: e_0(N_st),s_0(N_st)
double precision, intent(out) :: e_0(N_st)
double precision, intent(inout) :: u_0(sze,N_st)
integer(bit_kind),intent(in) :: keys_tmp(Nint,2,n)
double precision, allocatable :: v_0(:,:), s_vec(:,:), u_1(:,:)
double precision, allocatable :: v_0(:,:), u_1(:,:)
double precision :: u_dot_u,u_dot_v,diag_H_mat_elem
integer :: i,j, istate
if ((n > 100000).and.distributed_davidson) then
allocate (v_0(n,N_states_diag),s_vec(n,N_states_diag), u_1(n,N_states_diag))
allocate (v_0(n,N_states_diag), u_1(n,N_states_diag))
u_1(:,:) = 0.d0
u_1(1:n,1:N_st) = u_0(1:n,1:N_st)
call H_S2_u_0_nstates_zmq(v_0,s_vec,u_1,N_states_diag,n)
call H_u_0_nstates_zmq(v_0,u_1,N_states_diag,n)
else if (n < n_det_max_full) then
allocate (v_0(n,N_st),s_vec(n,N_st), u_1(n,N_st))
allocate (v_0(n,N_st), u_1(n,N_st))
v_0(:,:) = 0.d0
u_1(:,:) = 0.d0
s_vec(:,:) = 0.d0
u_1(1:n,1:N_st) = u_0(1:n,1:N_st)
do istate = 1,N_st
do j=1,n
do i=1,n
v_0(i,istate) = v_0(i,istate) + h_matrix_all_dets(i,j) * u_0(j,istate)
s_vec(i,istate) = s_vec(i,istate) + S2_matrix_all_dets(i,j) * u_0(j,istate)
enddo
enddo
enddo
else
allocate (v_0(n,N_st),s_vec(n,N_st),u_1(n,N_st))
allocate (v_0(n,N_st),u_1(n,N_st))
u_1(:,:) = 0.d0
u_1(1:n,1:N_st) = u_0(1:n,1:N_st)
call H_S2_u_0_nstates_openmp(v_0,s_vec,u_1,N_st,n)
call H_u_0_nstates_openmp(v_0,u_1,N_st,n)
endif
u_0(1:n,1:N_st) = u_1(1:n,1:N_st)
deallocate(u_1)
@ -76,42 +47,39 @@ subroutine u_0_H_u_0(e_0,s_0,u_0,n,keys_tmp,Nint,N_st,sze)
norm = u_dot_u(u_0(1,i),n)
if (norm /= 0.d0) then
e_0(i) = u_dot_v(v_0(1,i),u_0(1,i),n)
s_0(i) = u_dot_v(s_vec(1,i),u_0(1,i),n)
else
e_0(i) = 0.d0
s_0(i) = 0.d0
endif
enddo
!$OMP END PARALLEL DO
deallocate (s_vec, v_0)
deallocate (v_0)
end
subroutine H_S2_u_0_nstates_openmp(v_0,s_0,u_0,N_st,sze)
subroutine H_u_0_nstates_openmp(v_0,u_0,N_st,sze)
use bitmasks
implicit none
BEGIN_DOC
! Computes $v_0 = H | u_0\rangle$ and $s_0 = S^2 | u_0\rangle$.
! Computes $v_0 = H | u_0\rangle$.
!
! Assumes that the determinants are in psi_det
!
! istart, iend, ishift, istep are used in ZMQ parallelization.
END_DOC
integer, intent(in) :: N_st,sze
double precision, intent(inout) :: v_0(sze,N_st), s_0(sze,N_st), u_0(sze,N_st)
double precision, intent(inout) :: v_0(sze,N_st), u_0(sze,N_st)
integer :: k
double precision, allocatable :: u_t(:,:), v_t(:,:), s_t(:,:)
double precision, allocatable :: u_t(:,:), v_t(:,:)
!DIR$ ATTRIBUTES ALIGN : $IRP_ALIGN :: u_t
allocate(u_t(N_st,N_det),v_t(N_st,N_det),s_t(N_st,N_det))
allocate(u_t(N_st,N_det),v_t(N_st,N_det))
do k=1,N_st
call dset_order(u_0(1,k),psi_bilinear_matrix_order,N_det)
enddo
v_t = 0.d0
s_t = 0.d0
call dtranspose( &
u_0, &
size(u_0, 1), &
@ -119,7 +87,7 @@ subroutine H_S2_u_0_nstates_openmp(v_0,s_0,u_0,N_st,sze)
size(u_t, 1), &
N_det, N_st)
call H_S2_u_0_nstates_openmp_work(v_t,s_t,u_t,N_st,sze,1,N_det,0,1)
call H_u_0_nstates_openmp_work(v_t,u_t,N_st,sze,1,N_det,0,1)
deallocate(u_t)
call dtranspose( &
@ -128,66 +96,59 @@ subroutine H_S2_u_0_nstates_openmp(v_0,s_0,u_0,N_st,sze)
v_0, &
size(v_0, 1), &
N_st, N_det)
call dtranspose( &
s_t, &
size(s_t, 1), &
s_0, &
size(s_0, 1), &
N_st, N_det)
deallocate(v_t,s_t)
deallocate(v_t)
do k=1,N_st
call dset_order(v_0(1,k),psi_bilinear_matrix_order_reverse,N_det)
call dset_order(s_0(1,k),psi_bilinear_matrix_order_reverse,N_det)
call dset_order(u_0(1,k),psi_bilinear_matrix_order_reverse,N_det)
enddo
end
subroutine H_S2_u_0_nstates_openmp_work(v_t,s_t,u_t,N_st,sze,istart,iend,ishift,istep)
subroutine H_u_0_nstates_openmp_work(v_t,u_t,N_st,sze,istart,iend,ishift,istep)
use bitmasks
implicit none
BEGIN_DOC
! Computes $v_t = H | u_t\rangle$ and $s_t = S^2 | u_t\rangle$
! Computes $v_t = H | u_t\rangle$
!
! Default should be 1,N_det,0,1
END_DOC
integer, intent(in) :: N_st,sze,istart,iend,ishift,istep
double precision, intent(in) :: u_t(N_st,N_det)
double precision, intent(out) :: v_t(N_st,sze), s_t(N_st,sze)
double precision, intent(out) :: v_t(N_st,sze)
PROVIDE ref_bitmask_energy N_int
select case (N_int)
case (1)
call H_S2_u_0_nstates_openmp_work_1(v_t,s_t,u_t,N_st,sze,istart,iend,ishift,istep)
call H_u_0_nstates_openmp_work_1(v_t,u_t,N_st,sze,istart,iend,ishift,istep)
case (2)
call H_S2_u_0_nstates_openmp_work_2(v_t,s_t,u_t,N_st,sze,istart,iend,ishift,istep)
call H_u_0_nstates_openmp_work_2(v_t,u_t,N_st,sze,istart,iend,ishift,istep)
case (3)
call H_S2_u_0_nstates_openmp_work_3(v_t,s_t,u_t,N_st,sze,istart,iend,ishift,istep)
call H_u_0_nstates_openmp_work_3(v_t,u_t,N_st,sze,istart,iend,ishift,istep)
case (4)
call H_S2_u_0_nstates_openmp_work_4(v_t,s_t,u_t,N_st,sze,istart,iend,ishift,istep)
call H_u_0_nstates_openmp_work_4(v_t,u_t,N_st,sze,istart,iend,ishift,istep)
case default
call H_S2_u_0_nstates_openmp_work_N_int(v_t,s_t,u_t,N_st,sze,istart,iend,ishift,istep)
call H_u_0_nstates_openmp_work_N_int(v_t,u_t,N_st,sze,istart,iend,ishift,istep)
end select
end
BEGIN_TEMPLATE
subroutine H_S2_u_0_nstates_openmp_work_$N_int(v_t,s_t,u_t,N_st,sze,istart,iend,ishift,istep)
subroutine H_u_0_nstates_openmp_work_$N_int(v_t,u_t,N_st,sze,istart,iend,ishift,istep)
use bitmasks
implicit none
BEGIN_DOC
! Computes $v_t = H | u_t \\rangle$ and $s_t = S^2 | u_t\\rangle$
! Computes $v_t = H | u_t \\rangle$
!
! Default should be 1,N_det,0,1
END_DOC
integer, intent(in) :: N_st,sze,istart,iend,ishift,istep
double precision, intent(in) :: u_t(N_st,N_det)
double precision, intent(out) :: v_t(N_st,sze), s_t(N_st,sze)
double precision, intent(out) :: v_t(N_st,sze)
double precision :: hij, sij
double precision :: hij
integer :: i,j,k,l,kk
integer :: k_a, k_b, l_a, l_b, m_a, m_b
integer :: istate
@ -246,14 +207,14 @@ compute_singles=.True.
!$OMP psi_bilinear_matrix_order_transp_reverse, &
!$OMP psi_bilinear_matrix_columns_loc, &
!$OMP psi_bilinear_matrix_transp_rows_loc, &
!$OMP istart, iend, istep, irp_here, v_t, s_t, &
!$OMP istart, iend, istep, irp_here, v_t, &
!$OMP ishift, idx0, u_t, maxab, compute_singles, &
!$OMP singles_alpha_csc,singles_alpha_csc_idx, &
!$OMP singles_beta_csc,singles_beta_csc_idx) &
!$OMP PRIVATE(krow, kcol, tmp_det, spindet, k_a, k_b, i, &
!$OMP lcol, lrow, l_a, l_b, utl, kk, u_is_sparse, &
!$OMP buffer, doubles, n_doubles, umax, &
!$OMP tmp_det2, hij, sij, idx, l, kcol_prev, &
!$OMP tmp_det2, hij, idx, l, kcol_prev, &
!$OMP singles_a, n_singles_a, singles_b, ratio, &
!$OMP n_singles_b, k8, last_found,left,right,right_max)
@ -453,11 +414,9 @@ compute_singles=.True.
tmp_det2(1:$N_int,1) = psi_det_alpha_unique(1:$N_int, lrow)
call i_H_j_double_alpha_beta(tmp_det,tmp_det2,$N_int,hij)
call get_s2(tmp_det,tmp_det2,$N_int,sij)
!DIR$ LOOP COUNT AVG(4)
do l=1,N_st
v_t(l,k_a) = v_t(l,k_a) + hij * utl(l,kk+1)
s_t(l,k_a) = s_t(l,k_a) + sij * utl(l,kk+1)
enddo
enddo
enddo
@ -559,7 +518,6 @@ compute_singles=.True.
!DIR$ LOOP COUNT AVG(4)
do l=1,N_st
v_t(l,k_a) = v_t(l,k_a) + hij * utl(l,kk+1)
! single => sij = 0
enddo
enddo
enddo
@ -604,7 +562,6 @@ compute_singles=.True.
!DIR$ LOOP COUNT AVG(4)
do l=1,N_st
v_t(l,k_a) = v_t(l,k_a) + hij * utl(l,kk+1)
! same spin => sij = 0
enddo
enddo
enddo
@ -697,7 +654,6 @@ compute_singles=.True.
!DIR$ LOOP COUNT AVG(4)
do l=1,N_st
v_t(l,k_a) = v_t(l,k_a) + hij * utl(l,kk+1)
! single => sij = 0
enddo
enddo
enddo
@ -745,7 +701,6 @@ compute_singles=.True.
!DIR$ LOOP COUNT AVG(4)
do l=1,N_st
v_t(l,k_a) = v_t(l,k_a) + hij * utl(l,kk+1)
! same spin => sij = 0
enddo
enddo
enddo
@ -777,14 +732,12 @@ compute_singles=.True.
tmp_det(1:$N_int,1) = psi_det_alpha_unique(1:$N_int, krow)
tmp_det(1:$N_int,2) = psi_det_beta_unique (1:$N_int, kcol)
double precision, external :: diag_H_mat_elem, diag_S_mat_elem
double precision, external :: diag_H_mat_elem
hij = diag_H_mat_elem(tmp_det,$N_int)
sij = diag_S_mat_elem(tmp_det,$N_int)
!DIR$ LOOP COUNT AVG(4)
do l=1,N_st
v_t(l,k_a) = v_t(l,k_a) + hij * u_t(l,k_a)
s_t(l,k_a) = s_t(l,k_a) + sij * u_t(l,k_a)
enddo
end do

807
src/davidson/u0_hs2_u0.irp.f Normal file
View File

@ -0,0 +1,807 @@
BEGIN_PROVIDER [ double precision, psi_energy, (N_states) ]
&BEGIN_PROVIDER [ double precision, psi_s2, (N_states) ]
implicit none
BEGIN_DOC
! psi_energy(i) = $\langle \Psi_i | H | \Psi_i \rangle$
!
! psi_s2(i) = $\langle \Psi_i | S^2 | \Psi_i \rangle$
END_DOC
call u_0_HS2_u_0(psi_energy,psi_s2,psi_coef,N_det,psi_det,N_int,N_states,psi_det_size)
integer :: i
do i=N_det+1,N_states
psi_energy(i) = 0.d0
psi_s2(i) = 0.d0
enddo
END_PROVIDER
BEGIN_PROVIDER [ double precision, psi_energy_with_nucl_rep, (N_states) ]
implicit none
BEGIN_DOC
! Energy of the wave function with the nuclear repulsion energy.
END_DOC
psi_energy_with_nucl_rep(1:N_states) = psi_energy(1:N_states) + nuclear_repulsion
END_PROVIDER
subroutine u_0_HS2_u_0(e_0,s_0,u_0,n,keys_tmp,Nint,N_st,sze)
use bitmasks
implicit none
BEGIN_DOC
! Computes $E_0 = \frac{\langle u_0 | H | u_0 \rangle}{\langle u_0 | u_0 \rangle}$
!
! and $S_0 = \frac{\langle u_0 | S^2 | u_0 \rangle}{\langle u_0 | u_0 \rangle}$
!
! n : number of determinants
!
END_DOC
integer, intent(in) :: n,Nint, N_st, sze
double precision, intent(out) :: e_0(N_st),s_0(N_st)
double precision, intent(inout) :: u_0(sze,N_st)
integer(bit_kind),intent(in) :: keys_tmp(Nint,2,n)
double precision, allocatable :: v_0(:,:), s_vec(:,:), u_1(:,:)
double precision :: u_dot_u,u_dot_v,diag_H_mat_elem
integer :: i,j, istate
if ((n > 100000).and.distributed_davidson) then
allocate (v_0(n,N_states_diag),s_vec(n,N_states_diag), u_1(n,N_states_diag))
u_1(:,:) = 0.d0
u_1(1:n,1:N_st) = u_0(1:n,1:N_st)
call H_S2_u_0_nstates_zmq(v_0,s_vec,u_1,N_states_diag,n)
else if (n < n_det_max_full) then
allocate (v_0(n,N_st),s_vec(n,N_st), u_1(n,N_st))
v_0(:,:) = 0.d0
u_1(:,:) = 0.d0
s_vec(:,:) = 0.d0
u_1(1:n,1:N_st) = u_0(1:n,1:N_st)
do istate = 1,N_st
do j=1,n
do i=1,n
v_0(i,istate) = v_0(i,istate) + h_matrix_all_dets(i,j) * u_0(j,istate)
s_vec(i,istate) = s_vec(i,istate) + S2_matrix_all_dets(i,j) * u_0(j,istate)
enddo
enddo
enddo
else
allocate (v_0(n,N_st),s_vec(n,N_st),u_1(n,N_st))
u_1(:,:) = 0.d0
u_1(1:n,1:N_st) = u_0(1:n,1:N_st)
call H_S2_u_0_nstates_openmp(v_0,s_vec,u_1,N_st,n)
endif
u_0(1:n,1:N_st) = u_1(1:n,1:N_st)
deallocate(u_1)
double precision :: norm
!$OMP PARALLEL DO PRIVATE(i,norm) DEFAULT(SHARED)
do i=1,N_st
norm = u_dot_u(u_0(1,i),n)
if (norm /= 0.d0) then
e_0(i) = u_dot_v(v_0(1,i),u_0(1,i),n)
s_0(i) = u_dot_v(s_vec(1,i),u_0(1,i),n)
else
e_0(i) = 0.d0
s_0(i) = 0.d0
endif
enddo
!$OMP END PARALLEL DO
deallocate (s_vec, v_0)
end
subroutine H_S2_u_0_nstates_openmp(v_0,s_0,u_0,N_st,sze)
use bitmasks
implicit none
BEGIN_DOC
! Computes $v_0 = H | u_0\rangle$ and $s_0 = S^2 | u_0\rangle$.
!
! Assumes that the determinants are in psi_det
!
! istart, iend, ishift, istep are used in ZMQ parallelization.
END_DOC
integer, intent(in) :: N_st,sze
double precision, intent(inout) :: v_0(sze,N_st), s_0(sze,N_st), u_0(sze,N_st)
integer :: k
double precision, allocatable :: u_t(:,:), v_t(:,:), s_t(:,:)
!DIR$ ATTRIBUTES ALIGN : $IRP_ALIGN :: u_t
allocate(u_t(N_st,N_det),v_t(N_st,N_det),s_t(N_st,N_det))
do k=1,N_st
call dset_order(u_0(1,k),psi_bilinear_matrix_order,N_det)
enddo
v_t = 0.d0
s_t = 0.d0
call dtranspose( &
u_0, &
size(u_0, 1), &
u_t, &
size(u_t, 1), &
N_det, N_st)
call H_S2_u_0_nstates_openmp_work(v_t,s_t,u_t,N_st,sze,1,N_det,0,1)
deallocate(u_t)
call dtranspose( &
v_t, &
size(v_t, 1), &
v_0, &
size(v_0, 1), &
N_st, N_det)
call dtranspose( &
s_t, &
size(s_t, 1), &
s_0, &
size(s_0, 1), &
N_st, N_det)
deallocate(v_t,s_t)
do k=1,N_st
call dset_order(v_0(1,k),psi_bilinear_matrix_order_reverse,N_det)
call dset_order(s_0(1,k),psi_bilinear_matrix_order_reverse,N_det)
call dset_order(u_0(1,k),psi_bilinear_matrix_order_reverse,N_det)
enddo
end
subroutine H_S2_u_0_nstates_openmp_work(v_t,s_t,u_t,N_st,sze,istart,iend,ishift,istep)
use bitmasks
implicit none
BEGIN_DOC
! Computes $v_t = H | u_t\rangle$ and $s_t = S^2 | u_t\rangle$
!
! Default should be 1,N_det,0,1
END_DOC
integer, intent(in) :: N_st,sze,istart,iend,ishift,istep
double precision, intent(in) :: u_t(N_st,N_det)
double precision, intent(out) :: v_t(N_st,sze), s_t(N_st,sze)
PROVIDE ref_bitmask_energy N_int
select case (N_int)
case (1)
call H_S2_u_0_nstates_openmp_work_1(v_t,s_t,u_t,N_st,sze,istart,iend,ishift,istep)
case (2)
call H_S2_u_0_nstates_openmp_work_2(v_t,s_t,u_t,N_st,sze,istart,iend,ishift,istep)
case (3)
call H_S2_u_0_nstates_openmp_work_3(v_t,s_t,u_t,N_st,sze,istart,iend,ishift,istep)
case (4)
call H_S2_u_0_nstates_openmp_work_4(v_t,s_t,u_t,N_st,sze,istart,iend,ishift,istep)
case default
call H_S2_u_0_nstates_openmp_work_N_int(v_t,s_t,u_t,N_st,sze,istart,iend,ishift,istep)
end select
end
BEGIN_TEMPLATE
subroutine H_S2_u_0_nstates_openmp_work_$N_int(v_t,s_t,u_t,N_st,sze,istart,iend,ishift,istep)
use bitmasks
implicit none
BEGIN_DOC
! Computes $v_t = H | u_t \\rangle$ and $s_t = S^2 | u_t\\rangle$
!
! Default should be 1,N_det,0,1
END_DOC
integer, intent(in) :: N_st,sze,istart,iend,ishift,istep
double precision, intent(in) :: u_t(N_st,N_det)
double precision, intent(out) :: v_t(N_st,sze), s_t(N_st,sze)
double precision :: hij, sij
integer :: i,j,k,l,kk
integer :: k_a, k_b, l_a, l_b, m_a, m_b
integer :: istate
integer :: krow, kcol, krow_b, kcol_b
integer :: lrow, lcol
integer :: mrow, mcol
integer(bit_kind) :: spindet($N_int)
integer(bit_kind) :: tmp_det($N_int,2)
integer(bit_kind) :: tmp_det2($N_int,2)
integer(bit_kind) :: tmp_det3($N_int,2)
integer(bit_kind), allocatable :: buffer(:,:)
integer :: n_doubles
integer, allocatable :: doubles(:)
integer, allocatable :: singles_a(:)
integer, allocatable :: singles_b(:)
integer, allocatable :: idx(:), idx0(:)
integer :: maxab, n_singles_a, n_singles_b, kcol_prev
integer*8 :: k8
logical :: compute_singles
integer*8 :: last_found, left, right, right_max
double precision :: rss, mem, ratio
double precision, allocatable :: utl(:,:)
integer, parameter :: block_size=128
logical :: u_is_sparse
! call resident_memory(rss)
! mem = dble(singles_beta_csc_size) / 1024.d0**3
!
! compute_singles = (mem+rss > qp_max_mem)
!
! if (.not.compute_singles) then
! provide singles_beta_csc
! endif
compute_singles=.True.
maxab = max(N_det_alpha_unique, N_det_beta_unique)+1
allocate(idx0(maxab))
do i=1,maxab
idx0(i) = i
enddo
! Prepare the array of all alpha single excitations
! -------------------------------------------------
PROVIDE N_int nthreads_davidson
!$OMP PARALLEL DEFAULT(SHARED) NUM_THREADS(nthreads_davidson) &
!$OMP SHARED(psi_bilinear_matrix_rows, N_det, &
!$OMP psi_bilinear_matrix_columns, &
!$OMP psi_det_alpha_unique, psi_det_beta_unique, &
!$OMP n_det_alpha_unique, n_det_beta_unique, N_int, &
!$OMP psi_bilinear_matrix_transp_rows, &
!$OMP psi_bilinear_matrix_transp_columns, &
!$OMP psi_bilinear_matrix_transp_order, N_st, &
!$OMP psi_bilinear_matrix_order_transp_reverse, &
!$OMP psi_bilinear_matrix_columns_loc, &
!$OMP psi_bilinear_matrix_transp_rows_loc, &
!$OMP istart, iend, istep, irp_here, v_t, s_t, &
!$OMP ishift, idx0, u_t, maxab, compute_singles, &
!$OMP singles_alpha_csc,singles_alpha_csc_idx, &
!$OMP singles_beta_csc,singles_beta_csc_idx) &
!$OMP PRIVATE(krow, kcol, tmp_det, spindet, k_a, k_b, i, &
!$OMP lcol, lrow, l_a, l_b, utl, kk, u_is_sparse, &
!$OMP buffer, doubles, n_doubles, umax, &
!$OMP tmp_det2, hij, sij, idx, l, kcol_prev, &
!$OMP singles_a, n_singles_a, singles_b, ratio, &
!$OMP n_singles_b, k8, last_found,left,right,right_max)
! Alpha/Beta double excitations
! =============================
allocate( buffer($N_int,maxab), &
singles_a(maxab), &
singles_b(maxab), &
doubles(maxab), &
idx(maxab), utl(N_st,block_size))
kcol_prev=-1
! Check if u has multiple zeros
kk=1 ! Avoid division by zero
!$OMP DO
do k=1,N_det
umax = 0.d0
do l=1,N_st
umax = max(umax, dabs(u_t(l,k)))
enddo
if (umax < 1.d-20) then
!$OMP ATOMIC
kk = kk+1
endif
enddo
!$OMP END DO
u_is_sparse = N_det / kk < 20 ! 5%
ASSERT (iend <= N_det)
ASSERT (istart > 0)
ASSERT (istep > 0)
!$OMP DO SCHEDULE(guided,64)
do k_a=istart+ishift,iend,istep
krow = psi_bilinear_matrix_rows(k_a)
ASSERT (krow <= N_det_alpha_unique)
kcol = psi_bilinear_matrix_columns(k_a)
ASSERT (kcol <= N_det_beta_unique)
tmp_det(1:$N_int,1) = psi_det_alpha_unique(1:$N_int, krow)
if (kcol /= kcol_prev) then
tmp_det(1:$N_int,2) = psi_det_beta_unique (1:$N_int, kcol)
if (compute_singles) then
call get_all_spin_singles_$N_int( &
psi_det_beta_unique, idx0, &
tmp_det(1,2), N_det_beta_unique, &
singles_b, n_singles_b)
else
n_singles_b = 0
!DIR$ LOOP COUNT avg(1000)
do k8=singles_beta_csc_idx(kcol),singles_beta_csc_idx(kcol+1)-1
n_singles_b = n_singles_b+1
singles_b(n_singles_b) = singles_beta_csc(k8)
enddo
endif
endif
kcol_prev = kcol
! Loop over singly excited beta columns
! -------------------------------------
!DIR$ LOOP COUNT avg(1000)
do i=1,n_singles_b
lcol = singles_b(i)
tmp_det2(1:$N_int,2) = psi_det_beta_unique(1:$N_int, lcol)
!---
! if (compute_singles) then
l_a = psi_bilinear_matrix_columns_loc(lcol)
ASSERT (l_a <= N_det)
!DIR$ UNROLL(8)
!DIR$ LOOP COUNT avg(50000)
do j=1,psi_bilinear_matrix_columns_loc(lcol+1) - psi_bilinear_matrix_columns_loc(lcol)
lrow = psi_bilinear_matrix_rows(l_a)
ASSERT (lrow <= N_det_alpha_unique)
buffer(1:$N_int,j) = psi_det_alpha_unique(1:$N_int, lrow) ! hot spot
ASSERT (l_a <= N_det)
idx(j) = l_a
l_a = l_a+1
enddo
j = j-1
call get_all_spin_singles_$N_int( &
buffer, idx, tmp_det(1,1), j, &
singles_a, n_singles_a )
!-----
! else
!
! ! Search for singles
!
!call cpu_time(time0)
! ! Right boundary
! l_a = psi_bilinear_matrix_columns_loc(lcol+1)-1
! ASSERT (l_a <= N_det)
! do j=1,psi_bilinear_matrix_columns_loc(lcol+1) - psi_bilinear_matrix_columns_loc(lcol)
! lrow = psi_bilinear_matrix_rows(l_a)
! ASSERT (lrow <= N_det_alpha_unique)
!
! left = singles_alpha_csc_idx(krow)
! right_max = -1_8
! right = singles_alpha_csc_idx(krow+1)
! do while (right-left>0_8)
! k8 = shiftr(right+left,1)
! if (singles_alpha_csc(k8) > lrow) then
! right = k8
! else if (singles_alpha_csc(k8) < lrow) then
! left = k8 + 1_8
! else
! right_max = k8+1_8
! exit
! endif
! enddo
! if (right_max > 0_8) exit
! l_a = l_a-1
! enddo
! if (right_max < 0_8) right_max = singles_alpha_csc_idx(krow)
!
! ! Search
! n_singles_a = 0
! l_a = psi_bilinear_matrix_columns_loc(lcol)
! ASSERT (l_a <= N_det)
!
! last_found = singles_alpha_csc_idx(krow)
! do j=1,psi_bilinear_matrix_columns_loc(lcol+1) - psi_bilinear_matrix_columns_loc(lcol)
! lrow = psi_bilinear_matrix_rows(l_a)
! ASSERT (lrow <= N_det_alpha_unique)
!
! left = last_found
! right = right_max
! do while (right-left>0_8)
! k8 = shiftr(right+left,1)
! if (singles_alpha_csc(k8) > lrow) then
! right = k8
! else if (singles_alpha_csc(k8) < lrow) then
! left = k8 + 1_8
! else
! n_singles_a += 1
! singles_a(n_singles_a) = l_a
! last_found = k8+1_8
! exit
! endif
! enddo
! l_a = l_a+1
! enddo
! j = j-1
!
! endif
!-----
! Loop over alpha singles
! -----------------------
double precision :: umax
!DIR$ LOOP COUNT avg(1000)
do k = 1,n_singles_a,block_size
umax = 0.d0
! Prefetch u_t(:,l_a)
if (u_is_sparse) then
do kk=0,block_size-1
if (k+kk > n_singles_a) exit
l_a = singles_a(k+kk)
ASSERT (l_a <= N_det)
do l=1,N_st
utl(l,kk+1) = u_t(l,l_a)
umax = max(umax, dabs(utl(l,kk+1)))
enddo
enddo
else
do kk=0,block_size-1
if (k+kk > n_singles_a) exit
l_a = singles_a(k+kk)
ASSERT (l_a <= N_det)
utl(:,kk+1) = u_t(:,l_a)
enddo
umax = 1.d0
endif
if (umax < 1.d-20) cycle
do kk=0,block_size-1
if (k+kk > n_singles_a) exit
l_a = singles_a(k+kk)
lrow = psi_bilinear_matrix_rows(l_a)
ASSERT (lrow <= N_det_alpha_unique)
tmp_det2(1:$N_int,1) = psi_det_alpha_unique(1:$N_int, lrow)
call i_H_j_double_alpha_beta(tmp_det,tmp_det2,$N_int,hij)
call get_s2(tmp_det,tmp_det2,$N_int,sij)
!DIR$ LOOP COUNT AVG(4)
do l=1,N_st
v_t(l,k_a) = v_t(l,k_a) + hij * utl(l,kk+1)
s_t(l,k_a) = s_t(l,k_a) + sij * utl(l,kk+1)
enddo
enddo
enddo
enddo
enddo
!$OMP END DO
!$OMP DO SCHEDULE(guided,64)
do k_a=istart+ishift,iend,istep
! Single and double alpha excitations
! ===================================
! Initial determinant is at k_a in alpha-major representation
! -----------------------------------------------------------------------
krow = psi_bilinear_matrix_rows(k_a)
ASSERT (krow <= N_det_alpha_unique)
kcol = psi_bilinear_matrix_columns(k_a)
ASSERT (kcol <= N_det_beta_unique)
tmp_det(1:$N_int,1) = psi_det_alpha_unique(1:$N_int, krow)
tmp_det(1:$N_int,2) = psi_det_beta_unique (1:$N_int, kcol)
! Initial determinant is at k_b in beta-major representation
! ----------------------------------------------------------------------
k_b = psi_bilinear_matrix_order_transp_reverse(k_a)
ASSERT (k_b <= N_det)
spindet(1:$N_int) = tmp_det(1:$N_int,1)
! Loop inside the beta column to gather all the connected alphas
lcol = psi_bilinear_matrix_columns(k_a)
l_a = psi_bilinear_matrix_columns_loc(lcol)
!DIR$ LOOP COUNT avg(200000)
do i=1,N_det_alpha_unique
if (l_a > N_det) exit
lcol = psi_bilinear_matrix_columns(l_a)
if (lcol /= kcol) exit
lrow = psi_bilinear_matrix_rows(l_a)
ASSERT (lrow <= N_det_alpha_unique)
buffer(1:$N_int,i) = psi_det_alpha_unique(1:$N_int, lrow) ! Hot spot
idx(i) = l_a
l_a = l_a+1
enddo
i = i-1
call get_all_spin_singles_and_doubles_$N_int( &
buffer, idx, spindet, i, &
singles_a, doubles, n_singles_a, n_doubles )
! Compute Hij for all alpha singles
! ----------------------------------
tmp_det2(1:$N_int,2) = psi_det_beta_unique (1:$N_int, kcol)
!DIR$ LOOP COUNT avg(1000)
do i=1,n_singles_a,block_size
umax = 0.d0
! Prefetch u_t(:,l_a)
if (u_is_sparse) then
do kk=0,block_size-1
if (i+kk > n_singles_a) exit
l_a = singles_a(i+kk)
ASSERT (l_a <= N_det)
do l=1,N_st
utl(l,kk+1) = u_t(l,l_a)
umax = max(umax, dabs(utl(l,kk+1)))
enddo
enddo
else
do kk=0,block_size-1
if (i+kk > n_singles_a) exit
l_a = singles_a(i+kk)
ASSERT (l_a <= N_det)
utl(:,kk+1) = u_t(:,l_a)
enddo
umax = 1.d0
endif
if (umax < 1.d-20) cycle
do kk=0,block_size-1
if (i+kk > n_singles_a) exit
l_a = singles_a(i+kk)
lrow = psi_bilinear_matrix_rows(l_a)
ASSERT (lrow <= N_det_alpha_unique)
tmp_det2(1:$N_int,1) = psi_det_alpha_unique(1:$N_int, lrow)
call i_h_j_single_spin( tmp_det, tmp_det2, $N_int, 1, hij)
!DIR$ LOOP COUNT AVG(4)
do l=1,N_st
v_t(l,k_a) = v_t(l,k_a) + hij * utl(l,kk+1)
! single => sij = 0
enddo
enddo
enddo
! Compute Hij for all alpha doubles
! ----------------------------------
!DIR$ LOOP COUNT avg(50000)
do i=1,n_doubles,block_size
umax = 0.d0
! Prefetch u_t(:,l_a)
if (u_is_sparse) then
do kk=0,block_size-1
if (i+kk > n_doubles) exit
l_a = doubles(i+kk)
ASSERT (l_a <= N_det)
do l=1,N_st
utl(l,kk+1) = u_t(l,l_a)
umax = max(umax, dabs(utl(l,kk+1)))
enddo
enddo
else
do kk=0,block_size-1
if (i+kk > n_doubles) exit
l_a = doubles(i+kk)
ASSERT (l_a <= N_det)
utl(:,kk+1) = u_t(:,l_a)
enddo
umax = 1.d0
endif
if (umax < 1.d-20) cycle
do kk=0,block_size-1
if (i+kk > n_doubles) exit
l_a = doubles(i+kk)
lrow = psi_bilinear_matrix_rows(l_a)
ASSERT (lrow <= N_det_alpha_unique)
call i_H_j_double_spin( tmp_det(1,1), psi_det_alpha_unique(1, lrow), $N_int, hij)
!DIR$ LOOP COUNT AVG(4)
do l=1,N_st
v_t(l,k_a) = v_t(l,k_a) + hij * utl(l,kk+1)
! same spin => sij = 0
enddo
enddo
enddo
! Single and double beta excitations
! ==================================
! Initial determinant is at k_a in alpha-major representation
! -----------------------------------------------------------------------
krow = psi_bilinear_matrix_rows(k_a)
kcol = psi_bilinear_matrix_columns(k_a)
tmp_det(1:$N_int,1) = psi_det_alpha_unique(1:$N_int, krow)
tmp_det(1:$N_int,2) = psi_det_beta_unique (1:$N_int, kcol)
spindet(1:$N_int) = tmp_det(1:$N_int,2)
! Initial determinant is at k_b in beta-major representation
! -----------------------------------------------------------------------
k_b = psi_bilinear_matrix_order_transp_reverse(k_a)
ASSERT (k_b <= N_det)
! Loop inside the alpha row to gather all the connected betas
lrow = psi_bilinear_matrix_transp_rows(k_b)
l_b = psi_bilinear_matrix_transp_rows_loc(lrow)
!DIR$ LOOP COUNT avg(200000)
do i=1,N_det_beta_unique
if (l_b > N_det) exit
lrow = psi_bilinear_matrix_transp_rows(l_b)
if (lrow /= krow) exit
lcol = psi_bilinear_matrix_transp_columns(l_b)
ASSERT (lcol <= N_det_beta_unique)
buffer(1:$N_int,i) = psi_det_beta_unique(1:$N_int, lcol)
idx(i) = l_b
l_b = l_b+1
enddo
i = i-1
call get_all_spin_singles_and_doubles_$N_int( &
buffer, idx, spindet, i, &
singles_b, doubles, n_singles_b, n_doubles )
! Compute Hij for all beta singles
! ----------------------------------
tmp_det2(1:$N_int,1) = psi_det_alpha_unique(1:$N_int, krow)
!DIR$ LOOP COUNT avg(1000)
do i=1,n_singles_b,block_size
umax = 0.d0
if (u_is_sparse) then
do kk=0,block_size-1
if (i+kk > n_singles_b) exit
l_b = singles_b(i+kk)
l_a = psi_bilinear_matrix_transp_order(l_b)
ASSERT (l_b <= N_det)
ASSERT (l_a <= N_det)
do l=1,N_st
utl(l,kk+1) = u_t(l,l_a)
umax = max(umax, dabs(utl(l,kk+1)))
enddo
enddo
else
do kk=0,block_size-1
if (i+kk > n_singles_b) exit
l_b = singles_b(i+kk)
l_a = psi_bilinear_matrix_transp_order(l_b)
ASSERT (l_b <= N_det)
ASSERT (l_a <= N_det)
utl(:,kk+1) = u_t(:,l_a)
enddo
umax = 1.d0
endif
if (umax < 1.d-20) cycle
do kk=0,block_size-1
if (i+kk > n_singles_b) exit
l_b = singles_b(i+kk)
l_a = psi_bilinear_matrix_transp_order(l_b)
lcol = psi_bilinear_matrix_transp_columns(l_b)
ASSERT (lcol <= N_det_beta_unique)
tmp_det2(1:$N_int,2) = psi_det_beta_unique (1:$N_int, lcol)
call i_h_j_single_spin( tmp_det, tmp_det2, $N_int, 2, hij)
!DIR$ LOOP COUNT AVG(4)
do l=1,N_st
v_t(l,k_a) = v_t(l,k_a) + hij * utl(l,kk+1)
! single => sij = 0
enddo
enddo
enddo
! Compute Hij for all beta doubles
! ----------------------------------
!DIR$ LOOP COUNT avg(50000)
do i=1,n_doubles,block_size
umax = 0.d0
if (u_is_sparse) then
do kk=0,block_size-1
if (i+kk > n_doubles) exit
l_b = doubles(i+kk)
l_a = psi_bilinear_matrix_transp_order(l_b)
ASSERT (l_b <= N_det)
ASSERT (l_a <= N_det)
do l=1,N_st
utl(l,kk+1) = u_t(l,l_a)
umax = max(umax, dabs(utl(l,kk+1)))
enddo
enddo
else
do kk=0,block_size-1
if (i+kk > n_doubles) exit
l_b = doubles(i+kk)
l_a = psi_bilinear_matrix_transp_order(l_b)
ASSERT (l_b <= N_det)
ASSERT (l_a <= N_det)
utl(:,kk+1) = u_t(:,l_a)
enddo
umax = 1.d0
endif
if (umax < 1.d-20) cycle
do kk=0,block_size-1
if (i+kk > n_doubles) exit
l_b = doubles(i+kk)
l_a = psi_bilinear_matrix_transp_order(l_b)
lcol = psi_bilinear_matrix_transp_columns(l_b)
ASSERT (lcol <= N_det_beta_unique)
call i_H_j_double_spin( tmp_det(1,2), psi_det_beta_unique(1, lcol), $N_int, hij)
!DIR$ LOOP COUNT AVG(4)
do l=1,N_st
v_t(l,k_a) = v_t(l,k_a) + hij * utl(l,kk+1)
! same spin => sij = 0
enddo
enddo
enddo
! Diagonal contribution
! =====================
! Initial determinant is at k_a in alpha-major representation
! -----------------------------------------------------------------------
if (u_is_sparse) then
umax = 0.d0
do l=1,N_st
umax = max(umax, dabs(u_t(l,k_a)))
enddo
else
umax = 1.d0
endif
if (umax < 1.d-20) cycle
krow = psi_bilinear_matrix_rows(k_a)
ASSERT (krow <= N_det_alpha_unique)
kcol = psi_bilinear_matrix_columns(k_a)
ASSERT (kcol <= N_det_beta_unique)
tmp_det(1:$N_int,1) = psi_det_alpha_unique(1:$N_int, krow)
tmp_det(1:$N_int,2) = psi_det_beta_unique (1:$N_int, kcol)
double precision, external :: diag_H_mat_elem, diag_S_mat_elem
hij = diag_H_mat_elem(tmp_det,$N_int)
sij = diag_S_mat_elem(tmp_det,$N_int)
!DIR$ LOOP COUNT AVG(4)
do l=1,N_st
v_t(l,k_a) = v_t(l,k_a) + hij * u_t(l,k_a)
s_t(l,k_a) = s_t(l,k_a) + sij * u_t(l,k_a)
enddo
end do
!$OMP END DO
deallocate(buffer, singles_a, singles_b, doubles, idx, utl)
!$OMP END PARALLEL
end
SUBST [ N_int ]
1;;
2;;
3;;
4;;
N_int;;
END_TEMPLATE

30
src/determinants/connected_to_ref.irp.f
View File

@ -12,36 +12,6 @@ integer*8 function det_search_key(det,Nint)
end
integer*8 function configuration_search_key(cfg,Nint)
use bitmasks
implicit none
BEGIN_DOC
! Returns an integer*8 corresponding to a determinant index for searching.
! The left-most 8 bits contain the number of open shells+1. This ensures that the CSF
! are packed with the same seniority.
END_DOC
integer, intent(in) :: Nint
integer(bit_kind), intent(in) :: cfg(Nint,2)
integer :: i, n_open_shells
integer*8 :: mask
i = shiftr(elec_alpha_num, bit_kind_shift)+1
configuration_search_key = int(shiftr(ior(cfg(i,1),cfg(i,2)),1)+sum(cfg),8)
mask = X'00FFFFFFFFFFFFFF'
configuration_search_key = iand(mask,configuration_search_key)
n_open_shells = 1
do i=1,Nint
if (cfg(i,1) == 0_bit_kind) cycle
n_open_shells = n_open_shells + popcnt(cfg(i,1))
enddo
mask = n_open_shells
mask = shiftl(mask,56)
configuration_search_key = ior (mask,configuration_search_key)
end
logical function is_in_wavefunction(key,Nint)

280
src/determinants/create_excitations.irp.f
View File

@ -107,283 +107,3 @@ logical function is_spin_flip_possible(key_in,i_flip,ispin)
return
endif
end
subroutine do_single_excitation_cfg(key_in,key_out,i_hole,i_particle,ok)
use bitmasks
implicit none
BEGIN_DOC
! Applies the single excitation operator to a configuration
! If the excitation is possible, ok is True
END_DOC
integer, intent(in) :: i_hole,i_particle
integer(bit_kind), intent(in) :: key_in(N_int,2)
logical , intent(out) :: ok
integer :: k,j,i
integer(bit_kind) :: mask
integer(bit_kind) :: key_out(N_int,2)
ASSERT (i_hole > 0)
ASSERT (i_particle <= mo_num)
ok = .True.
key_out(:,:) = key_in(:,:)
! hole
k = shiftr(i_hole-1,bit_kind_shift)+1
j = i_hole-shiftl(k-1,bit_kind_shift)-1
mask = ibset(0_bit_kind,j)
! Check if the position j is singly occupied
! 1 -> 0 (SOMO)
! 0 0 (DOMO)
if (iand(key_out(k,1),mask) /= 0_bit_kind) then
key_out(k,1) = ibclr(key_out(k,1),j)
! Check if the position j is doubly occupied
! 0 -> 1 (SOMO)
! 1 0 (DOMO)
else if (iand(key_out(k,2),mask) /= 0_bit_kind) then
key_out(k,1) = ibset(key_out(k,1),j)
key_out(k,2) = ibclr(key_out(k,2),j)
! The position j is unoccupied: Not OK
! 0 -> 0 (SOMO)
! 0 0 (DOMO)
else
ok =.False.
return
endif
! particle
k = shiftr(i_particle-1,bit_kind_shift)+1
j = i_particle-shiftl(k-1,bit_kind_shift)-1
mask = ibset(0_bit_kind,j)
! Check if the position j is singly occupied
! 1 -> 0 (SOMO)
! 0 1 (DOMO)
if (iand(key_out(k,1),mask) /= 0_bit_kind) then
key_out(k,1) = ibclr(key_out(k,1),j)
key_out(k,2) = ibset(key_out(k,2),j)
! Check if the position j is doubly occupied : Not OK
! 0 -> 1 (SOMO)
! 1 0 (DOMO)
else if (iand(key_out(k,2),mask) /= 0_bit_kind) then
ok = .False.
return
! Position at j is unoccupied
! 0 -> 0 (SOMO)
! 0 0 (DOMO)
else
key_out(k,1) = ibset(key_out(k,1),j)
endif
end
subroutine do_single_excitation_cfg_with_type(key_in,key_out,i_hole,i_particle,ex_type,ok)
use bitmasks
implicit none
BEGIN_DOC
! Applies the single excitation operator to a configuration
! Returns the type of excitation in ex_type
! where the following convention is used
! 1 = (SOMO -> SOMO) 1 change in Nsomo
! 2 = (DOMO -> VMO) 1 change in Nsomo
! 3 = (SOMO -> VMO) 0 change in Nsomo
! 4 = (DOMO -> SOMO) 0 change in Nsomo
! If the excitation is possible, ok is True
END_DOC
integer, intent(in) :: i_hole,i_particle
integer(bit_kind), intent(in) :: key_in(N_int,2)
integer , intent(out) :: ex_type
logical , intent(out) :: ok
integer :: k,j,i
integer(bit_kind) :: mask
integer(bit_kind) :: key_out(N_int,2)
logical :: isholeSOMO
logical :: isparticleSOMO
logical :: isholeDOMO
logical :: isparticleVMO
isholeSOMO = .False.
isholeDOMO = .False.
isparticleSOMO = .False.
isparticleVMO = .False.
ASSERT (i_hole > 0)
ASSERT (i_particle <= mo_num)
ok = .True.
key_out(:,:) = key_in(:,:)
! hole
k = shiftr(i_hole-1,bit_kind_shift)+1
j = i_hole-shiftl(k-1,bit_kind_shift)-1
mask = ibset(0_bit_kind,j)
! Check if the position j is singly occupied
! 1 -> 0 (SOMO)
! 0 0 (DOMO)
if (iand(key_out(k,1),mask) /= 0_bit_kind) then
key_out(k,1) = ibclr(key_out(k,1),j)
isholeSOMO = .True.
! Check if the position j is doubly occupied
! 0 -> 1 (SOMO)
! 1 0 (DOMO)
else if (iand(key_out(k,2),mask) /= 0_bit_kind) then
key_out(k,1) = ibset(key_out(k,1),j)
key_out(k,2) = ibclr(key_out(k,2),j)
isholeDOMO = .True.
! The position j is unoccupied: Not OK
! 0 -> 0 (SOMO)
! 0 0 (DOMO)
else
ok =.False.
return
endif
! particle
k = shiftr(i_particle-1,bit_kind_shift)+1
j = i_particle-shiftl(k-1,bit_kind_shift)-1
mask = ibset(0_bit_kind,j)
! Check if the position j is singly occupied
! 1 -> 0 (SOMO)
! 0 1 (DOMO)
if (iand(key_out(k,1),mask) /= 0_bit_kind) then
key_out(k,1) = ibclr(key_out(k,1),j)
key_out(k,2) = ibset(key_out(k,2),j)
isparticleSOMO = .True.
! Check if the position j is doubly occupied : Not OK
! 0 -> 1 (SOMO)
! 1 0 (DOMO)
else if (iand(key_out(k,2),mask) /= 0_bit_kind) then
ok = .False.
return
! Position at j is unoccupied
! 0 -> 0 (SOMO)
! 0 0 (DOMO)
else
key_out(k,1) = ibset(key_out(k,1),j)
isparticleVMO = .True.
endif
if(isholeSOMO) then
! two possibilities
! particle is SOMO or VMO
if(isparticleSOMO) then
! SOMO -> SOMO
ex_type = 1
else
! SOMO -> VMO
ex_type = 3
endif
else
! two possibilities
! particle is SOMO or VMO
if(isparticleSOMO) then
! DOMO -> SOMO
ex_type = 4
else
! DOMO -> VMO
ex_type = 2
endif
endif
end
subroutine generate_all_singles_cfg(cfg,singles,n_singles,Nint)
implicit none
use bitmasks
BEGIN_DOC
! Generate all single excitation wrt a configuration
!
! n_singles : on input, max number of singles :
! elec_alpha_num * (mo_num - elec_beta_num)
! on output, number of generated singles
END_DOC
integer, intent(in) :: Nint
integer, intent(inout) :: n_singles
integer(bit_kind), intent(in) :: cfg(Nint,2)
integer(bit_kind), intent(out) :: singles(Nint,2,*)
integer :: i,k, n_singles_ma, i_hole, i_particle
integer(bit_kind) :: single(Nint,2)
logical :: i_ok
n_singles = 0
!TODO
!Make list of Somo and Domo for holes
!Make list of Unocc and Somo for particles
do i_hole = 1, mo_num
do i_particle = 1, mo_num
call do_single_excitation_cfg(cfg,single,i_hole,i_particle,i_ok)
if (i_ok) then
n_singles = n_singles + 1
do k=1,Nint
singles(k,1,n_singles) = single(k,1)
singles(k,2,n_singles) = single(k,2)
enddo
endif
enddo
enddo
end
subroutine generate_all_singles_cfg_with_type(cfgInp,singles,idxs_singles,pq_singles,ex_type_singles,n_singles,Nint)
implicit none
use bitmasks
BEGIN_DOC
! Generate all single excitation wrt a configuration
!
! n_singles : on input, max number of singles :
! elec_alpha_num * (mo_num - elec_beta_num)
! on output, number of generated singles
! ex_type_singles : on output contains type of excitations :
!
END_DOC
integer, intent(in) :: Nint
integer, intent(inout) :: n_singles
integer, intent(out) :: idxs_singles(*)
integer, intent(out) :: ex_type_singles(*)
integer, intent(out) :: pq_singles(2,*)
integer(bit_kind), intent(in) :: cfgInp(Nint,2)
integer(bit_kind), intent(out) :: singles(Nint,2,*)
integer(bit_kind) :: Jdet(Nint,2)
integer :: i,k, n_singles_ma, i_hole, i_particle, ex_type, addcfg
integer(bit_kind) :: single(Nint,2)
logical :: i_ok
n_singles = 0
!TODO
!Make list of Somo and Domo for holes
!Make list of Unocc and Somo for particles
do i_hole = 1+n_core_orb, n_core_orb + n_act_orb
do i_particle = 1+n_core_orb, n_core_orb + n_act_orb
if(i_hole .EQ. i_particle) cycle
addcfg = -1
call do_single_excitation_cfg_with_type(cfgInp,single,i_hole,i_particle,ex_type,i_ok)
if (i_ok) then
call binary_search_cfg(single,addcfg)
if(addcfg .EQ. -1) cycle
n_singles = n_singles + 1
do k=1,Nint
singles(k,1,n_singles) = single(k,1)
singles(k,2,n_singles) = single(k,2)
ex_type_singles(n_singles) = ex_type
pq_singles(1,n_singles) = i_hole ! p
pq_singles(2,n_singles) = i_particle ! q
idxs_singles(n_singles) = addcfg
enddo
endif
enddo
enddo
end

22
src/determinants/prune_wf.irp.f
View File

@ -13,16 +13,16 @@ BEGIN_PROVIDER [ logical, pruned, (N_det) ]
integer :: i,j,k,ndet_new,ncfg_max
double precision :: thr
if (s2_eig) then
ncfg_max = max(1,int ( dble(N_configuration) * (1.d0 - pruning) + 0.5d0 ))
do i=1,N_det
k = det_to_configuration(i)
pruned(i) = psi_configuration_sorted_order_reverse(k) > ncfg_max
enddo
else
! if (s2_eig) then
!
! ncfg_max = max(1,int ( dble(N_configuration) * (1.d0 - pruning) + 0.5d0 ))
!
! do i=1,N_det
! k = det_to_configuration(i)
! pruned(i) = psi_configuration_sorted_order_reverse(k) > ncfg_max
! enddo
!
! else
ndet_new = max(1,int( dble(N_det) * (1.d0 - pruning) + 0.5d0 ))
thr = psi_average_norm_contrib_sorted(ndet_new)
@ -30,6 +30,6 @@ BEGIN_PROVIDER [ logical, pruned, (N_det) ]
pruned(i) = psi_average_norm_contrib(i) < thr
enddo
endif
! endif
END_PROVIDER