#include "petscvec.h" PetscErrorCode VecStashSetInitialSize(Vec vec,PetscInt size,PetscInt bsize)Not Collective, different processes can have different size stashes
| vec | - the vector | |
| size | - the initial size of the stash. | |
| bsize | - the initial size of the block-stash(if used). |
| -vecstash_initial_size <size> or <size0,size1,...sizep | - 1> | |
| -vecstash_block_initial_size <bsize> or <bsize0,bsize1,...bsizep | - 1> |
Run with the option -info and look for output of the form VecAssemblyBegin_MPIXXX:Stash has MM entries, uses nn mallocs. to determine the appropriate value, MM, to use for size and VecAssemblyBegin_MPIXXX:Block-Stash has BMM entries, uses nn mallocs. to determine the value, BMM to use for bsize