petsc-3.9.0 2018-04-07
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PCSPAISetCacheSize

specify cache size in the SPAI preconditioner

Synopsis

#include "petscpc.h" 
PetscErrorCode  PCSPAISetCacheSize(PC pc,int cache_size)

Input Parameters

pc - the preconditioner
n - cache size {0,1,2,3,4,5} (default 5)

Notes: SPAI uses a hash table to cache messages and avoid redundant communication. If suggest always using 5. This parameter is irrelevant in the serial version.

See Also

PCSPAI, PCSetType()

Level

intermediate

Location

src/ksp/pc/impls/spai/ispai.c

Implementations

PCSPAISetCacheSize_SPAI in src/ksp/pc/impls/spai/ispai.c

Index of all PC routines
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Index of all manual pages