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mirror of https://github.com/QuantumPackage/qp2.git synced 2024-10-30 10:18:07 +01:00

4idx transformation with cholesky

This commit is contained in:
Anthony Scemama 2023-05-04 15:50:40 +02:00
parent 5e26befc1e
commit 0330ac6ccc
5 changed files with 91 additions and 8 deletions

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@ -6,7 +6,7 @@
# --align=32 : Align all provided arrays on a 32-byte boundary
#
[COMMON]
FC : ifort -fpic
FC : ifort -fpic -diag-disable 5462
LAPACK_LIB : -mkl=parallel
IRPF90 : irpf90
IRPF90_FLAGS : --ninja --align=64 -DINTEL

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@ -18,3 +18,8 @@ interface: ezfio,provider,ocaml
default: False
ezfio_name: direct
[do_ao_cholesky]
type: logical
doc: Perform Cholesky decomposition of AO integrals
interface: ezfio,provider,ocaml
default: True

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@ -15,7 +15,7 @@
double precision, allocatable :: ao_two_e_integral_alpha_tmp(:,:)
double precision, allocatable :: ao_two_e_integral_beta_tmp(:,:)
if (.True.) then ! Use Cholesky-decomposed integrals
if (do_ao_cholesky) then ! Use Cholesky-decomposed integrals
ao_two_e_integral_alpha(:,:) = ao_two_e_integral_alpha_chol(:,:)
ao_two_e_integral_beta (:,:) = ao_two_e_integral_beta_chol (:,:)

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@ -0,0 +1,16 @@
BEGIN_PROVIDER [ double precision, cholesky_mo, (mo_num, mo_num, cholesky_ao_num) ]
implicit none
BEGIN_DOC
! Cholesky vectors in MO basis
END_DOC
integer :: k
!$OMP PARALLEL DO PRIVATE(k)
do k=1,cholesky_ao_num
call ao_to_mo(cholesky_ao(1,1,k),ao_num,cholesky_mo(1,1,k),mo_num)
enddo
!$OMP END PARALLEL DO
END_PROVIDER

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@ -50,13 +50,16 @@ BEGIN_PROVIDER [ logical, mo_two_e_integrals_in_map ]
call cpu_time(cpu_1)
if(no_vvvv_integrals)then
! call four_idx_novvvv
call four_idx_novvvv_old
else
if (dble(ao_num)**4 * 32.d-9 < dble(qp_max_mem)) then
call four_idx_dgemm
if (do_ao_cholesky) then
call add_integrals_to_map_cholesky
else
call add_integrals_to_map(full_ijkl_bitmask_4)
if (dble(ao_num)**4 * 32.d-9 < dble(qp_max_mem)) then
call four_idx_dgemm
else
call add_integrals_to_map(full_ijkl_bitmask_4)
endif
endif
endif
@ -175,7 +178,7 @@ subroutine add_integrals_to_map(mask_ijkl)
implicit none
BEGIN_DOC
! Adds integrals to tha MO map according to some bitmask
! Adds integrals to the MO map according to some bitmask
END_DOC
integer(bit_kind), intent(in) :: mask_ijkl(N_int,4)
@ -450,13 +453,72 @@ subroutine add_integrals_to_map(mask_ijkl)
end
subroutine add_integrals_to_map_cholesky
use bitmasks
implicit none
BEGIN_DOC
! Adds integrals to the MO map using Cholesky vectors
END_DOC
integer :: i,j,k,l,m
integer :: size_buffer, n_integrals
size_buffer = min(mo_num*mo_num*mo_num,16000000)
double precision, allocatable :: Vtmp(:,:,:,:)
integer(key_kind) , allocatable :: buffer_i(:)
real(integral_kind), allocatable :: buffer_value(:)
if (.True.) then
! In-memory transformation
allocate (Vtmp(mo_num,mo_num,mo_num,mo_num))
call dgemm('N','T',mo_num*mo_num,mo_num*mo_num,cholesky_ao_num,1.d0, &
cholesky_mo, mo_num*mo_num, &
cholesky_mo, mo_num*mo_num, 0.d0, &
Vtmp, mo_num*mo_num)
!$OMP PARALLEL PRIVATE(i,j,k,l,n_integrals,buffer_value, buffer_i)
allocate (buffer_i(size_buffer), buffer_value(size_buffer))
n_integrals = 0
!$OMP DO
do l=1,mo_num
do k=1,l
do j=1,mo_num
do i=1,j
if (abs(Vtmp(i,j,k,l)) > mo_integrals_threshold) then
n_integrals += 1
buffer_value(n_integrals) = Vtmp(i,j,k,l)
!DIR$ FORCEINLINE
call mo_two_e_integrals_index(i,k,j,l,buffer_i(n_integrals))
if (n_integrals == size_buffer) then
call map_append(mo_integrals_map, buffer_i, buffer_value, n_integrals)
n_integrals = 0
endif
endif
enddo
enddo
enddo
enddo
!$OMP END DO
call map_append(mo_integrals_map, buffer_i, buffer_value, n_integrals)
deallocate(buffer_i, buffer_value)
!$OMP END PARALLEL
deallocate(Vtmp)
call map_unique(mo_integrals_map)
endif
end
subroutine add_integrals_to_map_three_indices(mask_ijk)
use bitmasks
implicit none
BEGIN_DOC
! Adds integrals to tha MO map according to some bitmask
! Adds integrals to the MO map according to some bitmask
END_DOC
integer(bit_kind), intent(in) :: mask_ijk(N_int,3)