2: #include <../src/ksp/ksp/impls/gmres/gmresimpl.h> 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. 9: Logically Collective 11: Input Parameter: 12: . ksp - iterative context obtained from KSPCreate 14: Options Database Key: 15: . -ksp_gmres_preallocate - Activates KSPGmresSetPreAllocateVectors() 17: Level: intermediate 19: .seealso: [](chapter_ksp), `KSPGMRESSetRestart()`, `KSPGMRESSetOrthogonalization()`, `KSPGMRESGetOrthogonalization()` 20: @*/ 21: PetscErrorCode KSPGMRESSetPreAllocateVectors(KSP ksp) 22: { 23: PetscTryMethod(ksp, "KSPGMRESSetPreAllocateVectors_C", (KSP), (ksp)); 24: return 0; 25: }