petsc-3.7.1 2016-05-15
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PCCreate

Creates a preconditioner context.

Synopsis

#include "petscksp.h" 
PetscErrorCode  PCCreate(MPI_Comm comm,PC *newpc)
Collective on MPI_Comm Many br

Input Parameter

comm -MPI communicator Many br

Output Parameter

pc -location to put the preconditioner context Many br

Notes

The default preconditioner for sparse matrices is PCILU or PCICC with 0 fill on one process and block Jacobi with PCILU or ICC Many brin parallel. For dense matrices it is always PCNONE. Many br

Many br

Keywords

PC, create, context

See Also

PCSetUp(), PCApply(), PCDestroy()

Level:developer
Location:
src/ksp/pc/interface/precon.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/ksp/ksp/examples/tutorials/ex21f.F.html
src/snes/examples/tutorials/ex74f.F90.html