70 lines
2.9 KiB
Fortran
70 lines
2.9 KiB
Fortran
!--------------------------------------------------------------------------------------------------
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!> @author Martin Diehl, Max-Planck-Institut für Eisenforschung GmbH
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!> @brief Fortran interfaces for LAPACK routines
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!> @details https://www.netlib.org/lapack/
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!--------------------------------------------------------------------------------------------------
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module LAPACK_interface
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interface
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pure subroutine dgeev(jobvl,jobvr,n,a,lda,wr,wi,vl,ldvl,vr,ldvr,work,lwork,info)
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use prec
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implicit none(type,external)
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character, intent(in) :: jobvl,jobvr
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integer, intent(in) :: n,lda,ldvl,ldvr,lwork
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real(pREAL), intent(inout), dimension(lda,n) :: a
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real(pREAL), intent(out), dimension(n) :: wr,wi
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real(pREAL), intent(out), dimension(ldvl,n) :: vl
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real(pREAL), intent(out), dimension(ldvr,n) :: vr
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real(pREAL), intent(out), dimension(max(1,lwork)) :: work
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integer, intent(out) :: info
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end subroutine dgeev
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pure subroutine dgesv(n,nrhs,a,lda,ipiv,b,ldb,info)
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use prec
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implicit none(type,external)
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integer, intent(in) :: n,nrhs,lda,ldb
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real(pREAL), intent(inout), dimension(lda,n) :: a
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integer, intent(out), dimension(n) :: ipiv
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real(pREAL), intent(inout), dimension(ldb,nrhs) :: b
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integer, intent(out) :: info
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end subroutine dgesv
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pure subroutine dgetrf(m,n,a,lda,ipiv,info)
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use prec
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implicit none(type,external)
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integer, intent(in) :: m,n,lda
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real(pREAL), intent(inout), dimension(lda,n) :: a
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integer, intent(out), dimension(min(m,n)) :: ipiv
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integer, intent(out) :: info
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end subroutine dgetrf
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pure subroutine dgetri(n,a,lda,ipiv,work,lwork,info)
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use prec
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implicit none(type,external)
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integer, intent(in) :: n,lda,lwork
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real(pREAL), intent(inout), dimension(lda,n) :: a
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integer, intent(in), dimension(n) :: ipiv
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real(pREAL), intent(out), dimension(max(1,lwork)) :: work
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integer, intent(out) :: info
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end subroutine dgetri
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pure subroutine dsyev(jobz,uplo,n,a,lda,w,work,lwork,info)
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use prec
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implicit none(type,external)
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character, intent(in) :: jobz,uplo
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integer, intent(in) :: n,lda,lwork
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real(pREAL), intent(inout), dimension(lda,n) :: a
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real(pREAL), intent(out), dimension(n) :: w
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real(pREAL), intent(out), dimension(max(1,lwork)) :: work
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integer, intent(out) :: info
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end subroutine dsyev
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end interface
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end module LAPACK_interface
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