MatDenseGetArrayReadAndMemType

gives read-only access to the array where the data for a MATDENSE matrix is stored

Synopsis

#include "petscmat.h" 
PetscErrorCode MatDenseGetArrayReadAndMemType(Mat A, const PetscScalar *array[], PetscMemType *mtype)

Logically Collective

Input Parameter

• A - a dense matrix

Output Parameters

• array - pointer to the data

• mtype - memory type of the returned pointer

Note

If the matrix is of a device type such as MATDENSECUDA, MATDENSEHIP, etc., an array on device is always returned and is guaranteed to contain the matrix’s latest data.

See Also

Matrices, Mat, MATDENSE, MatDenseRestoreArrayReadAndMemType(), MatDenseGetArrayWriteAndMemType(), MatDenseGetArrayRead(), MatDenseRestoreArrayRead(), MatDenseGetArrayWrite(), MatDenseRestoreArrayWrite(), MatSeqAIJGetCSRAndMemType()

Level

intermediate

Location

src/mat/impls/dense/seq/dense.c

Examples

src/mat/tutorials/ex19.c

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