PCFieldSplitSetBlockSize#

Sets the block size for defining where fields start in the fieldsplit preconditioner when calling PCFieldSplitSetIS(). If not set the matrix block size is used.

Synopsis#

#include "petscpc.h" 
PetscErrorCode PCFieldSplitSetBlockSize(PC pc, PetscInt bs)

Logically Collective

Input Parameters#

  • pc - the preconditioner context

  • bs - the block size

See Also#

Solving Block Matrices, PC, PCFieldSplitGetSubKSP(), PCFIELDSPLIT, PCFieldSplitSetFields(), PCFieldSplitSetIS()

Level#

intermediate

Location#

src/ksp/pc/impls/fieldsplit/fieldsplit.c

Examples#

src/ksp/ksp/tutorials/ex42.c
src/ksp/ksp/tutorials/ex43.c
src/ksp/ksp/tutorials/ex70.c

Implementations#

PCFieldSplitSetBlockSize_FieldSplit() in src/ksp/pc/impls/fieldsplit/fieldsplit.c


Index of all PC routines
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Index of all manual pages