MatSTRUMPACKGetCompButterflyLevels#

Get STRUMPACK number of butterfly levels in HODLR compression (requires ButterflyPACK support)

Synopsis#

#include "petscmat.h" 
PetscErrorCode MatSTRUMPACKGetCompButterflyLevels(Mat F, PetscInt *bfly_lvls)

Logically Collective

Input Parameters#

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

Output Parameter#

  • bfly_lvls - Number of levels of butterfly compression in HODLR compression

References#

  • **** -*** STRUMPACK documentation: https://portal.nersc.gov/project/sparse/strumpack/master/

See Also#

MatGetFactor(), MatSTRUMPACKSetCompButterflyLevels()

Level#

intermediate

Location#

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

Implementations#

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


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