EigenvalueSoLversforPetaflop-Applications(ELPA)  2016.05.003
Private Member Functions | List of all members
elpa1_auxiliary::cholesky_real Interface Reference

old, deprecated interface cholesky_real: Cholesky factorization of a real symmetric matrix More...

Private Member Functions

logical function elpa_cholesky_real (na, a, lda, nblk, matrixCols, mpi_comm_rows, mpi_comm_cols, wantDebug)
 elpa_cholesky_real: Cholesky factorization of a real symmetric matrix More...
 

Detailed Description

old, deprecated interface cholesky_real: Cholesky factorization of a real symmetric matrix

Parameters
naOrder of matrix
a(lda,matrixCols)Distributed matrix which should be factorized. Distribution is like in Scalapack. Only upper triangle is needs to be set. On return, the upper triangle contains the Cholesky factor and the lower triangle is set to 0.
ldaLeading dimension of a
matrixColslocal columns of matrix a
nblkblocksize of cyclic distribution, must be the same in both directions!
mpi_comm_rowsMPI communicator for rows
mpi_comm_colsMPI communicator for columns
wantDebuglogical, more debug information on failure
Returns
succes logical, reports success or failure

Member Function/Subroutine Documentation

logical function elpa1_auxiliary::cholesky_real::elpa_cholesky_real ( integer(kind=ik)  na,
real(kind=rk), dimension(lda,matrixcols)  a,
integer(kind=ik)  lda,
integer(kind=ik)  nblk,
integer(kind=ik)  matrixCols,
integer(kind=ik)  mpi_comm_rows,
integer(kind=ik)  mpi_comm_cols,
logical, intent(in)  wantDebug 
)
private

elpa_cholesky_real: Cholesky factorization of a real symmetric matrix

Parameters
naOrder of matrix
a(lda,matrixCols)Distributed matrix which should be factorized. Distribution is like in Scalapack. Only upper triangle is needs to be set. On return, the upper triangle contains the Cholesky factor and the lower triangle is set to 0.
ldaLeading dimension of a
matrixColslocal columns of matrix a
nblkblocksize of cyclic distribution, must be the same in both directions!
mpi_comm_rowsMPI communicator for rows
mpi_comm_colsMPI communicator for columns
wantDebuglogical, more debug information on failure
Returns
succes logical, reports success or failure

The documentation for this interface was generated from the following file: