MatSTRUMPACKSetCompButterflyLevels#
Set STRUMPACK https://portal.nersc.gov/project/sparse/strumpack/master number of butterfly levels in MAT_STRUMPACK_COMPRESSION_TYPE_HODLR, MAT_STRUMPACK_COMPRESSION_TYPE_BLR_HODLR, or MAT_STRUMPACK_COMPRESSION_TYPE_ZFP_BLR_HODLR compression (requires ButterflyPACK support)
Synopsis#
PetscErrorCode MatSTRUMPACKSetCompButterflyLevels(Mat F, PetscInt bfly_lvls)
Logically Collective
Input Parameters#
F - the factored matrix obtained by calling
MatGetFactor()from PETSc-STRUMPACK interfacebfly_lvls - Number of levels of butterfly compression in HODLR compression
Options Database Key#
-mat_strumpack_compression_butterfly_levels bfly_lvls - Number of levels in the hierarchically off-diagonal matrix for which to use butterfly
See Also#
MATSOLVERSTRUMPACK, MatGetFactor(), MatSTRUMPACKGetCompButterflyLevels(), MAT_STRUMPACK_COMPRESSION_TYPE_HODLR,
MAT_STRUMPACK_COMPRESSION_TYPE_BLR_HODLR, MAT_STRUMPACK_COMPRESSION_TYPE_ZFP_BLR_HODLR
Level#
intermediate
Location#
Implementations#
MatSTRUMPACKSetCompButterflyLevels_STRUMPACK() in src/mat/impls/aij/mpi/strumpack/impl/istrumpack.c
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