MatScaLAPACKSetBlockSizes#

Sets the block sizes to be used for the distribution of the MATSCALAPACK matrix

Synopsis#

#include "petscmat.h" 
PetscErrorCode MatScaLAPACKSetBlockSizes(Mat A, PetscInt mb, PetscInt nb)

Logically Collective

Input Parameters#

  • A - a MATSCALAPACK matrix

  • mb - the row block size

  • nb - the column block size

Note#

This block size has a different meaning from the block size associated with MatSetBlockSize() used for sparse matrices

See Also#

Matrices, Mat, MATSCALAPACK, MatCreateScaLAPACK(), MatScaLAPACKGetBlockSizes()

Level#

intermediate

Location#

src/mat/impls/scalapack/matscalapack.c

Implementations#

MatScaLAPACKSetBlockSizes_ScaLAPACK() in src/mat/impls/scalapack/matscalapack.c

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