KSPSetComputeRHS#

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

Synopsis#

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

Logically Collective

Input Parameters#

  • 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#

KSP: Linear System Solvers, KSP, KSPSolve(), DMKSPSetComputeRHS(), KSPSetComputeOperators(), KSPSetOperators()

Level#

beginner

Location#

src/ksp/ksp/interface/itfunc.c

Examples#

src/ksp/ksp/tutorials/ex22f.F90.html
src/ksp/ksp/tutorials/ex25.c.html
src/ksp/ksp/tutorials/ex28.c.html
src/ksp/ksp/tutorials/ex29.c.html
src/ksp/ksp/tutorials/ex32.c.html
src/ksp/ksp/tutorials/ex34.c.html
src/ksp/ksp/tutorials/ex35.cxx.html
src/ksp/ksp/tutorials/ex36.cxx.html
src/ksp/ksp/tutorials/ex45.c.html
src/ksp/ksp/tutorials/ex45f.F90.html
src/ksp/ksp/tutorials/ex50.c.html


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