KSPPIPEGCRSetUnrollW

Set to PETSC_TRUE to use KSPPIPEGCR with unrolling of the w vector

Synopsis

#include "petscksp.h"  
PetscErrorCode KSPPIPEGCRSetUnrollW(KSP ksp, PetscBool unroll_w)

Logically Collective

Input Parameters

• ksp - the Krylov space context

• unroll_w - use unrolling

Options Database Key

• -ksp_pipegcr_unroll_w - use unrolling

See Also

KSP: Linear System Solvers, KSPPIPEGCR, KSPPIPEGCRSetTruncationType(), KSPPIPEGCRSetNprealloc(), KSPPIPEGCRGetUnrollW()

Level

intermediate

Location

src/ksp/ksp/impls/gcr/pipegcr/pipegcr.c

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