NAME

HPL_broadcast - Broadcast operation.

SYNOPSIS

#include "hpl.h"

int HPL_broadcast( void * BUFFER, const int COUNT, const HPL_T_TYPE DTYPE, const int ROOT, MPI_Comm COMM );

HPL_broadcast broadcasts a message from the process with rank ROOT to all processes in the group.

BUFFER (local input/output) void *: On entry, BUFFER points to the buffer to be broadcast. On exit, this array contains the broadcast data and is identical on all processes in the group.
COUNT (global input) const int: On entry, COUNT indicates the number of entries in BUFFER. COUNT must be at least zero.
DTYPE (global input) const HPL_T_TYPE: On entry, DTYPE specifies the type of the buffers operands.
ROOT (global input) const int: On entry, ROOT is the coordinate of the source process.
COMM (global/local input) MPI_Comm: The MPI communicator identifying the process collection.