petsc-master 2020-08-13
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KSPMatSolve

Solves a linear system with multiple right-hand sides stored as a MATDENSE. Unlike KSPSolve(), B and X must be different matrices.

Synopsis

#include "petscksp.h" 
#include "petscmat.h" 
PetscErrorCode KSPMatSolve(KSP ksp, Mat B, Mat X)

Input Parameters

ksp - iterative context
B - block of right-hand sides

Output Parameter

X -block of solutions

Notes

This is a stripped-down version of KSPSolve(), which only handles -ksp_view, -ksp_converged_reason, and -ksp_view_final_residual.

See Also

KSPSolve(), MatMatSolve(), MATDENSE, KSPHPDDM, PCBJACOBI, PCASM

Level

intermediate

Location

src/ksp/ksp/interface/itfunc.c

Examples

src/ksp/ksp/tutorials/ex76.c.html
src/ksp/ksp/tutorials/ex77.c.html
src/ksp/ksp/tutorials/ex79.c.html
src/ksp/ksp/tutorials/ex76f.F90.html
src/ksp/ksp/tutorials/ex77f.F90.html

Implementations

KSPMatSolve_HPDDM in src/ksp/ksp/impls/hpddm/hpddm.cxx
KSPMatSolve_PREONLY in src/ksp/ksp/impls/preonly/preonly.c

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