MPI_BCAST(3)MPI_BCAST(3)NAMEMPI_Bcast - Broadcasts a message from the process with a specified rank
(called a root) to all other processes of the group
SYNOPSIS
C:
#include <mpi.h>
int MPI_Bcast ( buffer, count, datatype, root, comm )
void *buffer;
int count;
MPI_Datatype datatype;
int root;
MPI_Comm comm;
C++:
#include <mpi.h>
void Intracomm::Bcast(
void* buffer,
int count,
const Datatype& datatype,
int root) const
Fortran:
INCLUDE "mpif.h" (or USE MPI)
<type> BUFFER(*)
INTEGER count, datatype, root, comm,
ierror
CALL MPI_BCAST(buffer, count, datatype, root,
comm, ierror)
STANDARDS
This release implements the MPI 1.2 standard, as documented by the MPI
Forum in the spring 1997 release of MPI: A Message Passing Interface
Standard.
DESCRIPTION
The MPI_Bcast routine broadcasts a message from the process with a
specified rank (called a root) to all other processes of the group. This
routine accepts the following parameters:
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MPI_BCAST(3)MPI_BCAST(3)
buffer Specifies the starting address of the buffer (choice)
count Specifies the number of entries in the buffer (integer)
datatype Specifies the data type of the buffer (handle)
root Specifies the rank of the broadcast root (integer)
comm Specifies the communicator (handle)
ierror Specifies the return code value for successful completion,
which is in MPI_SUCCESS. MPI_SUCCESS is defined in the
mpif.h file.
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