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HPL_broadcast(3)             HPL Library Functions            HPL_broadcast(3)


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 );


DESCRIPTION

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


ARGUMENTS

       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.


SEE ALSO

       HPL_reduce (3), HPL_all_reduce (3), HPL_barrier (3), HPL_min (3),
       HPL_max (3), HPL_sum (3).

HPL 2.1                        October 26, 2012               HPL_broadcast(3)

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