PCModifySubMatricesFn

A prototype of a function used to modify submatrices generated with PCASM, PCBJACOBI, etc.

Synopsis

PETSC_EXTERN_TYPEDEF typedef PetscErrorCode PCModifySubMatricesFn(PC pc, PetscInt nsub, const IS row[], const IS col[], Mat submat[], void *ctx);

Calling Sequence

• pc - the PC preconditioner context

• nsub - number of index sets

• row - an array of index sets that contain the global row numbers that comprise each local submatrix

• col - an array of index sets that contain the global column numbers that comprise each local submatrix

• submat - array of local submatrices

• ctx - optional user-defined context for private data for the user-defined func routine (may be NULL), provided with PCSetModifySubMatrices()

See Also

KSP: Linear System Solvers, PC, PCSetModifySubMatrices(), PCModifySubMatrices(), PCASM, PCBJACOBI

Level

beginner

Location

include/petscpc.h

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Index of all PC routines
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Index of all manual pages