petsc-master 2018-04-20
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KSPSetComputeRHS

set routine to compute the right hand side of the linear system

Synopsis

#include "petscksp.h" 
PetscErrorCode KSPSetComputeRHS(KSP ksp,PetscErrorCode (*func)(KSP,Vec,void*),void *ctx)
Logically Collective

Input Arguments

ksp - the KSP context
func - function to compute the right hand side
ctx - optional context

Calling sequence of func

 func(KSP ksp,Vec b,void *ctx)

ksp - the KSP context
b - right hand side of linear system
ctx - optional user-provided context

Notes

The routine you provide will be called EACH you call KSPSolve() to prepare the new right hand side for that solve

See Also

KSPSolve(), DMKSPSetComputeRHS(), KSPSetComputeOperators()

Level

beginner

Location

src/ksp/ksp/interface/itfunc.c

Examples

src/ksp/ksp/examples/tutorials/ex25.c.html
src/ksp/ksp/examples/tutorials/ex28.c.html
src/ksp/ksp/examples/tutorials/ex29.c.html
src/ksp/ksp/examples/tutorials/ex32.c.html
src/ksp/ksp/examples/tutorials/ex34.c.html
src/ksp/ksp/examples/tutorials/ex45.c.html
src/ksp/ksp/examples/tutorials/ex50.c.html
src/ksp/ksp/examples/tutorials/ex65.c.html
src/ksp/ksp/examples/tutorials/ex66.c.html
src/ksp/ksp/examples/tutorials/ex22f.F90.html
src/ksp/ksp/examples/tutorials/ex45f.F90.html

Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages