petsc-3.8.4 2018-03-24
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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
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages

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/ex31.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.F.html