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mirror of https://gitlab.com/scemama/qmcchem.git synced 2024-12-22 04:13:31 +01:00

Merge branch 'qmckl' into 'qmckl'

First attempt at replacing SM-calls to QMCKL/SMW calls.

See merge request scemama/qmcchem!3
This commit is contained in:
Anthony Scemama 2021-10-11 15:03:45 +00:00
commit 64b5ae3fb1
3 changed files with 252 additions and 172 deletions

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@ -7,7 +7,7 @@ CPU_TYPE="-mavx"
## FORTRAN compiler
FC="gfortran -ffree-line-length-none"
FCFLAGS="-O2 -g ${CPU_TYPE}"
LIB="-lblas -llapack -lpthread"
LIB="-lblas -llapack -lpthread -lqmckl"
## IRPF90
IRPF90="${QMCCHEM_PATH}/bin/irpf90"

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@ -20,7 +20,8 @@ END_PROVIDER
END_PROVIDER
subroutine det_update(n,LDS,m,l,S,S_inv,d)
subroutine det_update(n,LDS,m,l,S,S_inv,d)
use qmckl
implicit none
integer, intent(in) :: n,LDS ! Dimension of the vector
@ -30,169 +31,245 @@ subroutine det_update(n,LDS,m,l,S,S_inv,d)
real,intent(inout) :: S(LDS,n) ! Slater matrix
double precision,intent(inout) :: S_inv(LDS,n) ! Inverse Slater matrix
double precision,intent(inout) :: d ! Det(S)
double precision :: zl, lambda, d_inv
if (d == 0.d0) then
return
endif
select case (n)
case default
call det_update_general(n,LDS,m,l,S,S_inv,d)
BEGIN_TEMPLATE
case ($n)
call det_update$n(n,LDS,m,l,S,S_inv,d)
SUBST [n]
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END_TEMPLATE
end select
!! -- START QMCKL/SMW ADDITIONS -- !!
!! !!
integer :: i, j
integer (qmckl_exit_code) :: rc
integer (qmckl_context) :: context
integer(kind=8) :: ddim, nupdates, updates_index(1)
real(c_double) :: updates(n,1), breakdown
double precision :: S_inv_sq(n,n)
S_inv = S_inv / d
! open(unit = 2000, file = "Slater_old.dat")
! open(unit = 3000, file = "Slater_old_inv.dat")
! do i=1,n
! do j=1,n
! write(2000,"(E23.15, 1X)", advance="no") S(j,i) ! write transpose for Octave
! write(3000,"(E23.15, 1X)", advance="no") S_inv(i,j)
! end do
! write(2000,*)
! write(3000,*)
! end do
! flush(2000)
! flush(3000)
! close(2000)
! close(3000)
do i=1,n
updates(i,1) = m(i) - S(i,l) ! transform repl. upds. into additive upds.
S(i,l) = m(i) ! update S with repl. upds
end do
zl = 0
do i=1,n
zl = zl + S_inv(i,l) * updates(i,1)
end do
d_inv = 1.d0/d
d = d + zl
lambda = d * d_inv
if ( dabs(lambda) < 1.d-3 ) then
d = 0.d0
return
endif
context = qmckl_context_create()
ddim = n
nupdates = 1
updates_index(1) = l
breakdown = 1e-3
S_inv_sq = S_inv(1:n,1:n)
rc = qmckl_sherman_morrison_splitting(context, ddim, nupdates, updates, updates_index, breakdown, S_inv_sq)
S_inv = S_inv_sq(1:n,1:n)
rc = qmckl_context_destroy(context)
! open(unit = 4000, file = "Slater.dat")
! open(unit = 5000, file = "Slater_inv.dat")
! do i=1,n
! do j=1,n
! write(4000,"(E23.15, 1X)", advance="no") S(j,i) ! write transpose for Octave
! write(5000,"(E23.15, 1X)", advance="no") S_inv(i,j)
! end do
! write(4000,*)
! write(5000,*)
! end do
! flush(4000)
! flush(5000)
! close(4000)
! close(5000)
S_inv = S_inv * d
! select case (n)
! case default
! call det_update_general(n,LDS,m,l,S,S_inv,d)
! BEGIN_TEMPLATE
! case ($n)
! call det_update$n(n,LDS,m,l,S,S_inv,d)
! SUBST [n]
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! END_TEMPLATE
! end select
!! !!
!! -- END QMCKL/SMW ADDITIONS -- !!
end
subroutine det_update2(n,LDS,m,l,S,S_inv,d)
@ -1186,7 +1263,7 @@ END_PROVIDER
BEGIN_DOC
! det_alpha_value_curr : Value of the current alpha determinant
!
! det_alpha_value_curr : Slater matrix for the current alpha determinant.
! slater_matrix_alpha : Slater matrix for the current alpha determinant.
! 1st index runs over electrons and
! 2nd index runs over MOs.
! Built with 1st determinant
@ -1200,6 +1277,7 @@ END_PROVIDER
double precision :: tmp_inv(elec_alpha_num_8)
real :: tmp_det(elec_alpha_num_8)
integer, save :: ifirst
logical :: file_exists
!DIR$ ATTRIBUTES ALIGN : $IRP_ALIGN :: tmp_inv, tmp_det
if (ifirst == 0) then
@ -1211,12 +1289,12 @@ END_PROVIDER
endif
PROVIDE mo_value
if (det_i /= det_alpha_order(1) ) then
if (det_i /= det_alpha_order(1) ) then ! alpha determinant order changes
n_to_do = 0
do k=1,elec_alpha_num
imo = mo_list_alpha_curr(k)
if ( imo /= mo_list_alpha_prev(k) ) then
if ( imo /= mo_list_alpha_prev(k) ) then ! mo for electron k has changed
n_to_do += 1
to_do(n_to_do) = k
endif
@ -1288,14 +1366,14 @@ END_PROVIDER
ddet = 0.d0
if (n_to_do < shiftl(elec_alpha_num,1)) then
do while ( n_to_do > 0 )
ddet = det_alpha_value_curr
n_to_do_old = n_to_do
ddet = det_alpha_value_curr ! remember value of det_alpha_value_curr
n_to_do_old = n_to_do ! remember n_to_do value
n_to_do = 0
do l=1,n_to_do_old
k = to_do(l)
imo = mo_list_alpha_curr(k)
k = to_do(l) ! select electron to change
imo = mo_list_alpha_curr(k) ! select mo to change
! write(*,*) "k, imo, mo_value(1,imo) = ", k, imo, mo_value(1,imo)
call det_update(elec_alpha_num, elec_alpha_num_8, &
mo_value(1,imo), &
k, &
@ -1344,12 +1422,13 @@ END_PROVIDER
slater_matrix_alpha_inv_det(k,i) = mo_value(i,mo_list_alpha_curr(k))
enddo
enddo
! write(*,*) "FIRST TIME OR ALL FAILED; DO LAPACK"
call invert(slater_matrix_alpha_inv_det,elec_alpha_num_8,elec_alpha_num,ddet)
endif
ASSERT (ddet /= 0.d0)
det_alpha_value_curr = ddet
END_PROVIDER
BEGIN_PROVIDER [ double precision, det_beta_value_curr ]
@ -1467,6 +1546,7 @@ END_PROVIDER
ddet = det_beta_value_curr
n_to_do_old = n_to_do
n_to_do = 0
loopcount = 0
do l=1,n_to_do_old
k = to_do(l)
imo = mo_list_beta_curr(k)

@ -1 +1 @@
Subproject commit de03986bda2be207377875ed5a0852cb721b86b9
Subproject commit 8535e3c0b5a4f4194ca0400b348774c3cc7c74d0