1: #include <../src/ksp/ksp/impls/gmres/gmresimpl.h>

  3: /*@
  4:   KSPGMRESSetPreAllocateVectors - Causes `KSPGMRES` and `KSPFGMRES` to preallocate all its
  5:   needed work vectors at initial setup rather than the default, which
  6:   is to allocate them in chunks when needed.

  8:   Logically Collective

 10:   Input Parameter:
 11: . ksp - iterative context obtained from `KSPCreate()`

 13:   Options Database Key:
 14: . -ksp_gmres_preallocate - Activates `KSPGmresSetPreAllocateVectors()`

 16:   Level: intermediate

 18: .seealso: [](ch_ksp), `KSPGMRESSetRestart()`, `KSPGMRESSetOrthogonalization()`, `KSPGMRESGetOrthogonalization()`
 19: @*/
 20: PetscErrorCode KSPGMRESSetPreAllocateVectors(KSP ksp)
 21: {
 22:   PetscFunctionBegin;
 23:   PetscTryMethod(ksp, "KSPGMRESSetPreAllocateVectors_C", (KSP), (ksp));
 24:   PetscFunctionReturn(PETSC_SUCCESS);
 25: }