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binary_search_cfg accelerated

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This commit is contained in:
Anthony Scemama 2021-03-06 19:23:21 +01:00
parent 3750f5446d
commit 52c4fc1ce4
2 changed files with 65 additions and 33 deletions
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58
src/csf/configurations.irp.f
View File

@ -755,26 +755,58 @@ subroutine binary_search_cfg(cfgInp,addcfg)
END_DOC END_DOC
integer(bit_kind), intent(in) :: cfgInp(N_int,2) integer(bit_kind), intent(in) :: cfgInp(N_int,2)
integer , intent(out) :: addcfg integer , intent(out) :: addcfg
integer :: i,j,k,r,l
integer*8 :: key, key2
logical :: found
!integer*8, allocatable :: bit_tmp(:)
!integer*8, external :: configuration_search_key
!allocate(bit_tmp(0:N_configuration)) logical :: found
!bit_tmp(0) = 0 integer :: l, r, j, k
do i=1,N_configuration integer*8 :: bit_tmp, key
!bit_tmp(i) = configuration_search_key(psi_configuration(1,1,i),N_int)
integer*8, external :: configuration_search_key
key = configuration_search_key(cfgInp,N_int)
! Binary search
l = 0
r = N_configuration+1
j = shiftr(r-l,1)
do while (j>=1)
j = j+l
bit_tmp = configuration_search_key(psi_configuration(1,1,j),N_int)
if (bit_tmp == key) then
! Find 1st element which matches the key
if (j > 1) then
bit_tmp = configuration_search_key(psi_configuration(1,1,j-1),N_int)
do while (j>1 .and. bit_tmp == key)
j = j-1
bit_tmp = configuration_search_key(psi_configuration(1,1,j-1),N_int)
enddo
bit_tmp = key
endif
! Find correct element matching the key
do while (bit_tmp == key)
found = .True. found = .True.
do k=1,N_int do k=1,N_int
found = found .and. (psi_configuration(k,1,i) == cfgInp(k,1)) & found = found .and. (psi_configuration(k,1,j) == cfgInp(k,1))&
.and. (psi_configuration(k,2,i) == cfgInp(k,2)) .and. (psi_configuration(k,2,j) == cfgInp(k,2))
enddo enddo
if (found) then if (found) then
addcfg = i addcfg = j
exit return
endif endif
j = j+1
bit_tmp = configuration_search_key(psi_configuration(1,1,j),N_int)
enddo enddo
addcfg = -1
return
else if (bit_tmp > key) then
r = j
else
l = j
endif
j = shiftr(r-l,1)
enddo
addcfg = -1
return
end subroutine end subroutine

26
src/davidson/diagonalization_hcsf_dressed.irp.f
View File

@ -306,23 +306,23 @@ subroutine davidson_diag_csf_hjj(dets_in,u_in,H_jj,energies,dim_in,sze,sze_csf,N
PROVIDE mo_two_e_integrals_in_map mo_integrals_map big_array_exchange_integrals PROVIDE mo_two_e_integrals_in_map mo_integrals_map big_array_exchange_integrals
if ((sze > 100000).and.distributed_davidson) then if ((sze > 100000).and.distributed_davidson) then
!call convertWFfromCSFtoDET(N_st_diag,U_csf(1,shift+1),U) ! call convertWFfromCSFtoDET(N_st_diag,U_csf(1,shift+1),U)
!call convertWFfromCSFtoDET(N_st_diag,W_csf(1,shift+1),W) ! call convertWFfromCSFtoDET(N_st_diag,W_csf(1,shift+1),W)
!call H_u_0_nstates_zmq (W,U,N_st_diag,sze) ! call H_u_0_nstates_zmq (W,U,N_st_diag,sze)
!call convertWFfromDETtoCSF(N_st_diag,U,U_csf(1,shift+1)) ! call convertWFfromDETtoCSF(N_st_diag,U,U_csf(1,shift+1))
!call convertWFfromDETtoCSF(N_st_diag,W,W_csf(1,shift+1)) ! call convertWFfromDETtoCSF(N_st_diag,W,W_csf(1,shift+1))
!call calculate_sigma_vector_cfg_nst(W_csf(1,shift+1),U_csf(1,shift+1),N_st_diag,sze_csf,1,sze_csf,0,1) ! call calculate_sigma_vector_cfg_nst(W_csf(1,shift+1),U_csf(1,shift+1),N_st_diag,sze_csf,1,sze_csf,0,1)
! TODO : psi_det_size ? for psi_det ! ! TODO : psi_det_size ? for psi_det
do kk=1,N_st_diag do kk=1,N_st_diag
call calculate_sigma_vector_cfg_nst(W_csf(1,shift+kk),U_csf(1,shift+kk),1,sze_csf,1,sze_csf,0,1) call calculate_sigma_vector_cfg_nst(W_csf(1,shift+kk),U_csf(1,shift+kk),1,sze_csf,1,sze_csf,0,1)
enddo enddo
else else
!call convertWFfromCSFtoDET(N_st_diag,U_csf(1,shift+1),U) ! call convertWFfromCSFtoDET(N_st_diag,U_csf(1,shift+1),U)
!call convertWFfromCSFtoDET(N_st_diag,W_csf(1,shift+1),W) ! call convertWFfromCSFtoDET(N_st_diag,W_csf(1,shift+1),W)
!call H_u_0_nstates_openmp(W,U,N_st_diag,sze) ! call H_u_0_nstates_openmp(W,U,N_st_diag,sze)
!call convertWFfromDETtoCSF(N_st_diag,U,U_csf(1,shift+1)) ! call convertWFfromDETtoCSF(N_st_diag,U,U_csf(1,shift+1))
!call convertWFfromDETtoCSF(N_st_diag,W,W_csf(1,shift+1)) ! call convertWFfromDETtoCSF(N_st_diag,W,W_csf(1,shift+1))
!call calculate_sigma_vector_cfg_nst(W_csf(1,shift+1),U_csf(1,shift+1),N_st_diag,sze_csf,1,sze_csf,0,1) ! call calculate_sigma_vector_cfg_nst(W_csf(1,shift+1),U_csf(1,shift+1),N_st_diag,sze_csf,1,sze_csf,0,1)
do kk=1,N_st_diag do kk=1,N_st_diag
call calculate_sigma_vector_cfg_nst(W_csf(1,shift+kk),U_csf(1,shift+kk),1,sze_csf,1,sze_csf,0,1) call calculate_sigma_vector_cfg_nst(W_csf(1,shift+kk),U_csf(1,shift+kk),1,sze_csf,1,sze_csf,0,1)
enddo enddo