MatSetFromOptions#
Creates a matrix where the type is determined from the options database. Generates a parallel MPI matrix if the communicator has more than one processor. The default matrix type is MATAIJ
, using the routines MatCreateSeqAIJ()
and MatCreateAIJ()
if you do not select a type in the options database.
Synopsis#
#include "petscmat.h"
PetscErrorCode MatSetFromOptions(Mat B)
Collective
Input Parameter#
A - the matrix
Options Database Keys#
-mat_type seqaij -
MATSEQAIJ
type, usesMatCreateSeqAIJ()
-mat_type mpiaij -
MATMPIAIJ
type, usesMatCreateAIJ()
-mat_type seqdense -
MATSEQDENSE
type, usesMatCreateSeqDense()
-mat_type mpidense -
MATMPIDENSE
, usesMatCreateDense()
-mat_type seqbaij -
MATSEQBAIJ
, usesMatCreateSeqBAIJ()
-mat_type mpibaij -
MATMPIBAIJ
, usesMatCreateBAIJ()
Even More Options Database Keys#
See the manpages for particular formats (e.g., MatCreateSeqAIJ()
)
for additional format-specific options.
See Also#
MatCreateSeqAIJ(()
, MatCreateAIJ()
,
MatCreateSeqDense()
, MatCreateDense()
,
MatCreateSeqBAIJ()
, MatCreateBAIJ()
,
MatCreateSeqSBAIJ()
, MatCreateSBAIJ()
,
MatConvert()
Level#
beginner
Location#
Examples#
src/mat/tutorials/ex10.c.html
src/mat/tutorials/ex15.c.html
src/mat/tutorials/ex15f.F90.html
src/mat/tutorials/ex16.c.html
src/mat/tutorials/ex17.c.html
src/mat/tutorials/ex17f.F90.html
src/mat/tutorials/ex18.c.html
src/mat/tutorials/ex4.c.html
src/mat/tutorials/ex4f.F90.html
src/mat/tutorials/ex5cu.cu.html
src/mat/tutorials/ex5k.kokkos.cxx.html
Implementations#
MatSetFromOptions_MPIAIJ in src/mat/impls/aij/mpi/mpiaij.c
MatSetFromOptions_MPIAIJCUSPARSE in src/mat/impls/aij/mpi/mpicusparse/mpiaijcusparse.cu
MatSetFromOptions_MPIAIJHIPSPARSE in src/mat/impls/aij/mpi/mpihipsparse/mpiaijhipsparse.hip.c
MatSetFromOptions_MUMPS in src/mat/impls/aij/mpi/mumps/mumps.c
MatSetFromOptions_SeqAIJCUSPARSE in src/mat/impls/aij/seq/seqcusparse/aijcusparse.cu
MatSetFromOptions_SeqAIJHIPSPARSE in src/mat/impls/aij/seq/seqhipsparse/aijhipsparse.hip.c
MatSetFromOptions_Composite in src/mat/impls/composite/mcomposite.c
MatSetFromOptions_H2OPUS in src/mat/impls/h2opus/cuda/math2opus.cu
MatSetFromOptions_Htool in src/mat/impls/htool/htool.cxx
MatSetFromOptions_IS in src/mat/impls/is/matis.c
MatSetFromOptions_MFFD in src/mat/impls/mffd/mffd.c
MatSetFromOptions_MPISELL in src/mat/impls/sell/mpi/mpisell.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages