MatCreateMPIAIJSumSeqAIJSymbolic

Create the symbolic (nonzero-pattern) portion of an MATMPIAIJ matrix obtained by summing local MATSEQAIJ contributions from each process.

Synopsis

#include "petscmat.h" 
PetscErrorCode MatCreateMPIAIJSumSeqAIJSymbolic(MPI_Comm comm, Mat seqmat, PetscInt m, PetscInt n, Mat *mpimat)

Collective

Input Parameters

• comm - the communicator

• seqmat - the local MATSEQAIJ contribution from this process

• m - the number of local rows for the resulting MATMPIAIJ matrix, or PETSC_DECIDE

• n - the number of local columns for the resulting MATMPIAIJ matrix, or PETSC_DECIDE

Output Parameter

• mpimat - the newly created MATMPIAIJ matrix

Note

The numerical values are filled in by a subsequent call to MatCreateMPIAIJSumSeqAIJNumeric().

See Also

Mat, MATMPIAIJ, MATSEQAIJ, MatCreateMPIAIJSumSeqAIJNumeric(), MatCreateMPIAIJSumSeqAIJ()

Level

developer

Location

src/mat/impls/aij/mpi/mpiaij.c

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