MatH2OpusSetNativeMult

Enable or disable the native H2Opus matrix-vector multiplication path for a MATH2OPUS.

Synopsis

#include "petscmat.h"   
PetscErrorCode MatH2OpusSetNativeMult(Mat A, PetscBool nm)

Logically Collective

Input Parameters

• A - the MATH2OPUS matrix

• nm - PETSC_TRUE to enable the native H2Opus multiply layout, PETSC_FALSE to use the PETSc layout

Note

Switching this flag swaps the row and column PetscLayouts of A with those needed by H2Opus so that vectors created by MatCreateVecs() are compatible with the currently selected multiplication path.

See Also

Mat, MATH2OPUS, MatH2OpusGetNativeMult()

Level

advanced

Location

src/mat/impls/h2opus/cuda/math2opus.cu

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