slepc-main 2024-11-15
BVScatter
Scatters the columns of a BV to another BV created in a subcommunicator.
Synopsis
#include "slepcbv.h"
PetscErrorCode BVScatter(BV Vin,BV Vout,VecScatter scat,Vec xdup)
Collective
Input Parameters
| Vin | - input basis vectors (defined on the whole communicator)
|
| scat | - VecScatter object that contains the info for the communication
|
| xdup | - an auxiliary vector
|
Output Parameter
| Vout | - output basis vectors (defined on the subcommunicator)
|
Notes
Currently implemented as a loop for each the active column, where each
column is scattered independently. The vector xdup is defined on the
contiguous parent communicator and have enough space to store one
duplicate of the original vector per each subcommunicator.
See Also
BVGetColumn()
Level
developer
Location
src/sys/classes/bv/interface/bvcontour.c
Index of all BV routines
Table of Contents for all manual pages
Index of all manual pages