PETSc version 3.16.4
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ISCompressIndicesGeneral

convert the indices into block indices

Synopsis

#include "petscis.h"  
PetscErrorCode  ISCompressIndicesGeneral(PetscInt n,PetscInt nkeys,PetscInt bs,PetscInt imax,const IS is_in[],IS is_out[])

Input Parameters

n - maximum possible length of the index set
nkeys - expected number of keys when PETSC_USE_CTABLE
bs - the size of block
imax - the number of index sets
is_in - the non-blocked array of index sets

Output Parameter

is_out - the blocked new index set

See Also

ISExpandIndicesGeneral()

Level

intermediate

Location

src/vec/is/is/utils/isblock.c
Index of all IS routines
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Index of all manual pages