MatDensePlaceArray#

Allows one to replace the array in a MATDENSE matrix with an array provided by the user. This is useful to avoid copying an array into a matrix

Synopsis#

#include "petscmat.h"  
PetscErrorCode MatDensePlaceArray(Mat mat, const PetscScalar *array)

Not Collective

Input Parameters#

  • mat - the matrix

  • array - the array in column major order

Note#

You can return to the original array with a call to MatDenseResetArray(). The user is responsible for freeing this array; it will not be freed when the matrix is destroyed.

See Also#

Matrices, Mat, MATDENSE, MatDenseGetArray(), MatDenseResetArray(), VecPlaceArray(), VecGetArray(), VecRestoreArray(), VecReplaceArray(), VecResetArray(), MatDenseReplaceArray()

Level#

developer

Location#

src/mat/impls/dense/mpi/mpidense.c

Implementations#

MatDensePlaceArray_MPIDense() in src/mat/impls/dense/mpi/mpidense.c
MatDensePlaceArray_SeqDense() in src/mat/impls/dense/seq/dense.c


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