PMI_Bcast

PMI_Bcast - Performs a *Bcast* across the specified process group

SYNOPSIS

C or C++ SYNOPSIS

#include <pmi.h>
int PMI_Bcast(void *buffer, int len);

IMPLEMENTATION

Cray Linux Environment (CLE)

DESCRIPTION

This function is a collective call across all processes in the process group the local process belongs to. The process with PMI rank 0 is the root process. The root process treats buffer as input. All other processes treat buffer as output. Processes may return from PMI_Bcast asynchronously. The return value is not guaranteed to be the same across all ranks in the job.

buffer

Pointer to the beginning of the broadcast buffer.

len

Number of bytes to be broadcast.

RETURN VALUES

PMI_SUCCESS

Operation completed successfully

PMI_FAIL

Operation failed

PMI_ERR_INIT

PMI not initialized

PMI_ERR_RANK_FAIL_STOP