#include "petscsys.h" PetscErrorCode PetscGatherNumberOfMessages(MPI_Comm comm,const PetscMPIInt iflags[],const PetscMPIInt ilengths[],PetscMPIInt *nrecvs)Collective on MPI_Comm Many br
comm | - Communicator Many br | |
iflags | - an array of integers of length sizeof(comm). A '1' in ilengths[i] represent a Many brmessage from current node to ith node. Optionally NULL Many br | |
ilengths | - Non zero ilengths[i] represent a message to i of length ilengths[i]. Many brOptionally NULL. Many br |
Many br
Either iflags or ilengths should be provided. If iflags is not Many brprovided (NULL) it can be computed from ilengths. If iflags is Many brprovided, ilengths is not required. Many br
Level:developer
Location:src/sys/utils/mpimesg.c
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