MatUpdateMPIAIJWithArray

updates an MATMPIAIJ matrix using an array that contains the nonzero values

Synopsis

#include "petscmat.h" 
PetscErrorCode MatUpdateMPIAIJWithArray(Mat mat, const PetscScalar v[])

Collective

Input Parameters

• mat - the matrix

• v - matrix values, stored by row

Notes

The matrix must have been obtained with MatCreateMPIAIJWithArrays() or MatMPIAIJSetPreallocationCSR()

The column indices in the call to MatCreateMPIAIJWithArrays() or MatMPIAIJSetPreallocationCSR() must have been sorted for this call to work correctly

See Also

Matrices, Mat, MatCreate(), MatCreateSeqAIJ(), MatSetValues(), MatMPIAIJSetPreallocation(), MatMPIAIJSetPreallocationCSR(), MATMPIAIJ, MatCreateAIJ(), MatCreateMPIAIJWithSplitArrays(), MatUpdateMPIAIJWithArrays(), MatSetPreallocationCOO(), MatSetValuesCOO()

Level

intermediate

Location

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

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