1 2 #include <../src/ksp/ksp/impls/gmres/gmresimpl.h> /*I "petscksp.h" I*/ 3 4 /*@ 5 KSPGMRESSetPreAllocateVectors - Causes GMRES and FGMRES to preallocate all its 6 needed work vectors at initial setup rather than the default, which 7 is to allocate them in chunks when needed. 8 9 Logically Collective 10 11 Input Parameter: 12 . ksp - iterative context obtained from KSPCreate 13 14 Options Database Key: 15 . -ksp_gmres_preallocate - Activates KSPGmresSetPreAllocateVectors() 16 17 Level: intermediate 18 19 .seealso: [](ch_ksp), `KSPGMRESSetRestart()`, `KSPGMRESSetOrthogonalization()`, `KSPGMRESGetOrthogonalization()` 20 @*/ 21 PetscErrorCode KSPGMRESSetPreAllocateVectors(KSP ksp) 22 { 23 PetscFunctionBegin; 24 PetscTryMethod(ksp, "KSPGMRESSetPreAllocateVectors_C", (KSP), (ksp)); 25 PetscFunctionReturn(PETSC_SUCCESS); 26 } 27