petsc-dev 2014-08-27
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MatCreateMPIAIJConcatenateSeqAIJ

Creates a single large PETSc matrix by concatenating sequential matrices from each processor

Synopsis

#include "petscmat.h" 
PetscErrorCode  MatCreateMPIAIJConcatenateSeqAIJ(MPI_Comm comm,Mat inmat,PetscInt n,MatReuse scall,Mat *outmat)
Collective on MPI_Comm

Input Parameters

comm - the communicators the parallel matrix will live on
inmat - the input sequential matrices
n - number of local columns (or PETSC_DECIDE)
scall - either MAT_INITIAL_MATRIX or MAT_REUSE_MATRIX

Output Parameter

outmat -the parallel matrix generated

Notes: The number of columns of the matrix in EACH processor MUST be the same.

Level:advanced
Location:
src/mat/impls/aij/mpi/mpiaij.c
Index of all Mat routines
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Index of all manual pages