KSPGMRESSetPreAllocateVectors
Causes GMRES to preallocate all its needed work vectors at initial setup rather than the default, which is to allocate them in chunks when needed.
Synopsis
int KSPGMRESSetPreAllocateVectors(KSP ksp)
Collective on KSP
Input Parameter
ksp -iterative context obtained from KSPCreate
Options Database Key
-ksp_gmres_preallocate -Activates KSPGmresSetPreAllocateVectors()
Keywords
GMRES, preallocate, vectors
See Also
KSPGMRESSetRestart(), KSPGMRESSetOrthogonalization()
Level:intermediate
Location:src/sles/ksp/impls/gmres/gmpre.c
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