#include "petscvec.h" PetscErrorCode VecScatterCreateToZero(Vec vin,VecScatter *ctx,Vec *vout)Collective on Vec Many br
ctx | - scatter context Many br | |
vout | - output SEQVEC that is large enough to scatter into on processor 0 and Many brof length zero on all other processors Many br |
Many br
Note: vout may be NULL [NULL_OBJECT from fortran] if you do not Many brneed to have it created Many br
VecScatterCreateToZero(vin,&ctx,&vout);
// scatter as many times as you need
VecScatterBegin(ctx,vin,vout,INSERT_VALUES,SCATTER_FORWARD);
VecScatterEnd(ctx,vin,vout,INSERT_VALUES,SCATTER_FORWARD);
// destroy scatter context and local vector when no longer needed
VecScatterDestroy(&ctx);
VecDestroy(&vout);
Do NOT create a vector and then pass it in as the final argument vout! vout is created by this routine Many brautomatically (unless you pass NULL in for that argument if you do not need it). Many br
Level:intermediate
Location:src/vec/vec/utils/vecmpitoseq.c
Index of all Vec routines
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