Actual source code: gmpre.c


  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: [](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: }