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DGEMM in pseudo-inverse
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This commit is contained in:
Anthony Scemama 2024-02-12 18:21:59 +01:00
parent 1b9a75f488
commit d619c621fc

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@ -1377,29 +1377,29 @@ subroutine get_pseudo_inverse(A, LDA, m, n, C, LDC, cutoff)
enddo
endif
! !$OMP PARALLEL &
! !$OMP DEFAULT (NONE) &
! !$OMP PRIVATE (i, j) &
! !$OMP SHARED (n, n_svd, D, Vt)
! !$OMP DO
! do j = 1, n
! do i = 1, n_svd
! Vt(i,j) = D(i) * Vt(i,j)
! enddo
! enddo
! !$OMP END DO
! !$OMP END PARALLEL
! call dgemm('N', 'N', n, m, n_svd, 1.d0, Vt, size(Vt,1), U, size(U,1), 0.d0, C, size(C,1))
C = 0.d0
do i=1,m
do j=1,n
do k=1,n_svd
C(j,i) = C(j,i) + U(i,k) * D(k) * Vt(k,j)
enddo
!$OMP PARALLEL &
!$OMP DEFAULT (NONE) &
!$OMP PRIVATE (i, j) &
!$OMP SHARED (n, n_svd, D, Vt)
!$OMP DO
do j = 1, n
do i = 1, n_svd
Vt(i,j) = D(i) * Vt(i,j)
enddo
enddo
!$OMP END DO
!$OMP END PARALLEL
call dgemm('T', 'T', n, m, n_svd, 1.d0, Vt, size(Vt,1), U, size(U,1), 0.d0, C, size(C,1))
! C = 0.d0
! do i=1,m
! do j=1,n
! do k=1,n_svd
! C(j,i) = C(j,i) + U(i,k) * D(k) * Vt(k,j)
! enddo
! enddo
! enddo
deallocate(U,D,Vt,work,A_tmp)