MatCreateSeqAIJHIPSPARSE#
Creates a sparse matrix in MATAIJHIPSPARSE
(compressed row) format. This matrix will ultimately pushed down to AMD GPUs and use the HIPSPARSE library for calculations.
Synopsis#
#include "petscmat.h"
PetscErrorCode MatCreateSeqAIJHIPSPARSE(MPI_Comm comm, PetscInt m, PetscInt n, PetscInt nz, const PetscInt nnz[], Mat *A)
Collective
Input Parameters#
comm - MPI communicator, set to
PETSC_COMM_SELF
m - number of rows
n - number of columns
nz - number of nonzeros per row (same for all rows), ignored if
nnz
is setnnz - array containing the number of nonzeros in the various rows (possibly different for each row) or
NULL
Output Parameter#
A - the matrix
Notes#
It is recommended that one use the MatCreate()
, MatSetType()
and/or MatSetFromOptions()
,
MatXXXXSetPreallocation()
paradgm instead of this routine directly.
[MatXXXXSetPreallocation() is, for example, MatSeqAIJSetPreallocation
]
The AIJ format (compressed row storage), is fully compatible with standard Fortran storage. That is, the stored row and column indices can begin at either one (as in Fortran) or zero.
Specify the preallocated storage with either nz
or nnz
(not both).
Set nz
= PETSC_DEFAULT
and nnz
= NULL
for PETSc to control dynamic memory
allocation.
See Also#
Matrices, Mat
, MatCreate()
, MatCreateAIJ()
, MatSetValues()
, MatSeqAIJSetColumnIndices()
, MatCreateSeqAIJWithArrays()
, MATSEQAIJHIPSPARSE
, MATAIJHIPSPARSE
Level#
intermediate
Location#
src/mat/impls/aij/seq/seqhipsparse/aijhipsparse.hip.cpp
Index of all Mat routines
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Index of all manual pages