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QuantumPackage/plugins/local/tc_int/write_tc_int_cuda.irp.f
2024-08-05 14:49:35 +02:00

195 lines
5.1 KiB
Fortran

! ---
program write_tc_int_cuda
implicit none
print *, ' j2e_type = ', j2e_type
print *, ' j1e_type = ', j1e_type
print *, ' env_type = ', env_type
my_grid_becke = .True.
PROVIDE tc_grid1_a tc_grid1_r
my_n_pt_r_grid = tc_grid1_r
my_n_pt_a_grid = tc_grid1_a
touch my_grid_becke my_n_pt_r_grid my_n_pt_a_grid
my_extra_grid_becke = .True.
PROVIDE tc_grid2_a tc_grid2_r
my_n_pt_r_extra_grid = tc_grid2_r
my_n_pt_a_extra_grid = tc_grid2_a
touch my_extra_grid_becke my_n_pt_r_extra_grid my_n_pt_a_extra_grid
call write_int(6, my_n_pt_r_grid, 'radial external grid over')
call write_int(6, my_n_pt_a_grid, 'angular external grid over')
call write_int(6, my_n_pt_r_extra_grid, 'radial internal grid over')
call write_int(6, my_n_pt_a_extra_grid, 'angular internal grid over')
call main()
end
! ---
subroutine main()
implicit none
PROVIDE io_tc_integ
print*, 'io_tc_integ = ', io_tc_integ
if(io_tc_integ .ne. "Write") then
print*, 'io_tc_integ != Write'
print*, io_tc_integ
stop
endif
call do_work_on_gpu()
call ezfio_set_tc_keywords_io_tc_integ('Read')
end
! ---
subroutine do_work_on_gpu()
use cutc_module
implicit none
integer :: k, ipoint
double precision, allocatable :: rn(:,:), aos_data1(:,:,:), aos_data2(:,:,:)
double precision, allocatable :: int2_grad1_u12_ao(:,:,:,:)
double precision, allocatable :: int_2e_ao(:,:,:,:)
double precision :: time0, time1
double precision :: cuda_time0, cuda_time1
call wall_time(time0)
print*, ' start calculation of TC-integrals'
allocate(rn(3,nucl_num))
allocate(aos_data1(n_points_final_grid,ao_num,4))
allocate(aos_data2(n_points_extra_final_grid,ao_num,4))
allocate(int2_grad1_u12_ao(ao_num,ao_num,n_points_final_grid,3))
allocate(int_2e_ao(ao_num,ao_num,ao_num,ao_num))
do k = 1, nucl_num
rn(1,k) = nucl_coord(k,1)
rn(2,k) = nucl_coord(k,2)
rn(3,k) = nucl_coord(k,3)
enddo
do k = 1, ao_num
do ipoint = 1, n_points_final_grid
aos_data1(ipoint,k,1) = aos_in_r_array(k,ipoint)
aos_data1(ipoint,k,2) = aos_grad_in_r_array(k,ipoint,1)
aos_data1(ipoint,k,3) = aos_grad_in_r_array(k,ipoint,2)
aos_data1(ipoint,k,4) = aos_grad_in_r_array(k,ipoint,3)
enddo
do ipoint = 1, n_points_extra_final_grid
aos_data2(ipoint,k,1) = aos_in_r_array_extra(k,ipoint)
aos_data2(ipoint,k,2) = aos_grad_in_r_array_extra(k,ipoint,1)
aos_data2(ipoint,k,3) = aos_grad_in_r_array_extra(k,ipoint,2)
aos_data2(ipoint,k,4) = aos_grad_in_r_array_extra(k,ipoint,3)
enddo
enddo
! ---
integer :: nB
integer :: sB
PROVIDE nxBlocks nyBlocks nzBlocks
PROVIDE blockxSize blockySize blockzSize
sB = 32
nB = (n_points_final_grid + sB - 1) / sB
call ezfio_set_tc_int_blockxSize(sB)
call ezfio_set_tc_int_nxBlocks(nB)
call wall_time(cuda_time0)
print*, ' start CUDA kernel'
call tc_int_c(nxBlocks, nyBlocks, nzBlocks, blockxSize, blockySize, blockzSize, &
n_points_final_grid, n_points_extra_final_grid, ao_num, nucl_num, jBH_size, &
final_grid_points, final_weight_at_r_vector, &
final_grid_points_extra, final_weight_at_r_vector_extra, &
rn, aos_data1, aos_data2, jBH_c, jBH_m, jBH_n, jBH_o, &
int2_grad1_u12_ao, int_2e_ao)
call wall_time(cuda_time1)
print*, ' wall time for CUDA kernel (min) = ', (cuda_time1-cuda_time0) / 60.d0
deallocate(aos_data1, aos_data2)
! ---
integer :: i, j, l
double precision :: t1, t2
double precision :: tmp
double precision, external :: get_ao_two_e_integral
call wall_time(t1)
PROVIDE ao_integrals_map
tmp = get_ao_two_e_integral(1, 1, 1, 1, ao_integrals_map)
!$OMP PARALLEL DEFAULT(NONE) &
!$OMP SHARED(ao_num, int_2e_ao, ao_integrals_map) &
!$OMP PRIVATE(i, j, k, l)
!$OMP DO COLLAPSE(3)
do j = 1, ao_num
do l = 1, ao_num
do i = 1, ao_num
do k = 1, ao_num
! < 1:i, 2:j | 1:k, 2:l >
int_2e_ao(k,i,l,j) = int_2e_ao(k,i,l,j) + get_ao_two_e_integral(i, j, k, l, ao_integrals_map)
enddo
enddo
enddo
enddo
!$OMP END DO
!$OMP END PARALLEL
call wall_time(t2)
print*, ' wall time of Coulomb part of tc_int_2e_ao (min) ', (t2 - t1) / 60.d0
! ---
print*, ' Writing int2_grad1_u12_ao in ', trim(ezfio_filename) // '/work/int2_grad1_u12_ao'
open(unit=11, form="unformatted", file=trim(ezfio_filename)//'/work/int2_grad1_u12_ao', action="write")
call ezfio_set_work_empty(.False.)
write(11) int2_grad1_u12_ao
close(11)
deallocate(int2_grad1_u12_ao)
print*, ' Saving tc_int_2e_ao in ', trim(ezfio_filename) // '/work/ao_two_e_tc_tot'
open(unit=11, form="unformatted", file=trim(ezfio_filename)//'/work/ao_two_e_tc_tot', action="write")
call ezfio_set_work_empty(.False.)
do k = 1, ao_num
write(11) int_2e_ao(:,:,:,k)
enddo
close(11)
deallocate(int_2e_ao)
! ----
call wall_time(time1)
print*, ' wall time for TC-integrals (min) = ', (time1-time0) / 60.d0
return
end
! ---