MatSTRUMPACKSetCompression

Set STRUMPACK https://portal.nersc.gov/project/sparse/strumpack/master compression type

Synopsis

PetscErrorCode MatSTRUMPACKSetCompression(Mat F, MatSTRUMPACKCompressionType comp)

Input Parameters

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

• comp - Type of compression to be used in the approximate sparse factorization

Options Database Key

• -mat_strumpack_compression (none|hss|blr|hodlr|blr_hodlr|zfp_blr_hodlr|lossless|lossy) - Type of rank-structured compression in sparse LU factors

Note

Default for compression is MAT_STRUMPACK_COMPRESSION_TYPE_NONE for -pc_type lu and MAT_STRUMPACK_COMPRESSION_TYPE_BLR for -pc_type ilu

See Also

MATSOLVERSTRUMPACK, MatGetFactor(), MatSTRUMPACKCompressionType, MatSTRUMPACKGetCompression()

Level

intermediate

Location

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

Implementations

MatSTRUMPACKSetCompression_STRUMPACK() in src/mat/impls/aij/mpi/strumpack/impl/istrumpack.c

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