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Optimized DGEMM

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This commit is contained in:
Anthony Scemama 2017-09-25 23:45:37 +02:00
parent 63af3aa6a2
commit 42c7cf31b7
1 changed files with 22 additions and 23 deletions
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39
plugins/FourIdx/four_index.irp.f
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@ -59,16 +59,16 @@ subroutine four_index_transform(map_a,map_c,matrix_B,LDB, &
!$OMP i_min,i_max,j_min,j_max,k_min,k_max,l_min,l_max, &
!$OMP map_a,map_c,matrix_B)
allocate( key(i_max*j_max*k_max), value(i_max*j_max*k_max) )
allocate( U(a_start:a_end, b_start:b_end, c_start:c_end) )
allocate( U(a_start:a_end, c_start:c_end, b_start:b_end) )
!$OMP DO
!$OMP DO SCHEDULE(static,1)
do d=d_start,d_end
U = 0.d0
print *, d
do l=1,l_end
if (dabs(matrix_B(l,d)) < 1.d-10) then
cycle
endif
print *, d, l
allocate( T(i_start:i_end, k_start:k_end, j_start:j_end), &
V(a_start:a_end, k_start:k_end, j_start:j_end) )
@ -79,11 +79,16 @@ subroutine four_index_transform(map_a,map_c,matrix_B,LDB, &
call bielec_integrals_index(i,j,k,l,idx)
call map_get(map_a,idx,tmp)
T(i, k,j) = tmp
T(k, i,j) = tmp
enddo
enddo
enddo
do j=j_start,j_end
do k=k_start,k_end
do i=k+1,i_end
T(i, k,j) = T(k, i,j)
enddo
enddo
enddo
call DGEMM('T','N', (a_end-a_start+1), &
(k_end-k_start+1)*(j_end-j_start+1), &
@ -93,10 +98,10 @@ subroutine four_index_transform(map_a,map_c,matrix_B,LDB, &
V(a_start,k_start,j_start), size(V, 1) )
deallocate(T)
allocate( T(a_start:a_end, k_start:k_end, b_start:b_end) )
allocate( T(a_start:a_end, k_start:k_end, b_start:d) )
call DGEMM('N','N', (a_end-a_start+1)*(k_end-k_start+1), &
(b_end-b_start+1), &
(d-b_start+1), &
(j_end-j_start+1), 1.d0, &
V(a_start,k_start,j_start), size(V,1)*size(V,2), &
matrix_B(j_start,b_start), size(matrix_B,1),0.d0, &
@ -104,28 +109,22 @@ subroutine four_index_transform(map_a,map_c,matrix_B,LDB, &
deallocate(V)
allocate( V(a_start:a_end, b_start:b_end, c_start:c_end) )
V = 0.d0
do b=b_start,b_end
call DGEMM('N','N', (a_end-a_start+1), (c_end-c_start+1), &
(k_end-k_start+1), 1.d0, &
do b=b_start,d
call DGEMM('N','N', (b-a_start+1), (c_end-c_start+1), &
(k_end-k_start+1), matrix_B(l, d), &
T(a_start,k_start,b), size(T,1), &
matrix_B(k_start,k_start), size(matrix_B,1), 1.d0, &
V(a_start,c_start,b), size(V,1) )
U(a_start,c_start,b), size(U,1) )
enddo
U = U + V*matrix_B(l, d)
deallocate(T,V)
deallocate(T)
enddo
idx = 0_8
do b=b_start,d
do c=c_start,c_end
do b=b_start,b_end
do a=a_start,a_end
! do c=c_start,c_end
! do b=b_start,d
! do a=a_start,min(b,c)
do a=a_start,min(b,c)
if (dabs(U(a,c,b)) < 1.d-15) then
cycle
endif