MatSTRUMPACKSetCompLossyPrecision

Set STRUMPACK https://portal.nersc.gov/project/sparse/strumpack/master precision for lossy compression (requires ZFP support)

Synopsis

#include "petscmat.h" 
PetscErrorCode MatSTRUMPACKSetCompLossyPrecision(Mat F, PetscInt lossy_prec)

Logically Collective

Input Parameters

• F - the factored matrix obtained by calling MatGetFactor() from PETSc-STRUMPACK interface

• lossy_prec - Number of bitplanes to use in lossy compression

Options Database Key

• -mat_strumpack_compression_lossy_precision <lossy_prec> - Precision when using lossy compression [1-64], when using -pctype ilu -mat_strumpack_compression MAT_STRUMPACK_COMPRESSION_TYPE_LOSSY

See Also

MATSOLVERSTRUMPACK, MatGetFactor(), MatSTRUMPACKGetCompLossyPrecision()

Level

intermediate

Location

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

Implementations

MatSTRUMPACKSetCompLossyPrecision_STRUMPACK() in src/mat/impls/aij/mpi/strumpack/strumpack.c

---

Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages