1HPL_broadcast(3)             HPL Library Functions            HPL_broadcast(3)
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NAME

6       HPL_broadcast - Broadcast operation.
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SYNOPSIS

9       #include "hpl.h"
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11       int  HPL_broadcast(  void  *  BUFFER, const int COUNT, const HPL_T_TYPE
12       DTYPE, const int ROOT, MPI_Comm COMM );
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DESCRIPTION

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

19       BUFFER  (local input/output)    void *
20               On  entry,   BUFFER  points to  the  buffer to be broadcast. On
21               exit, this array contains the broadcast data and  is  identical
22               on all processes in the group.
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24       COUNT   (global input)          const int
25               On  entry,   COUNT  indicates the number of entries in  BUFFER.
26               COUNT must be at least zero.
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28       DTYPE   (global input)          const HPL_T_TYPE
29               On entry,  DTYPE  specifies the type of the buffers operands.
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31       ROOT    (global input)          const int
32               On entry, ROOT is the coordinate of the source process.
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34       COMM    (global/local input)    MPI_Comm
35               The MPI communicator identifying the process collection.
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SEE ALSO

38       HPL_reduce (3),   HPL_all_reduce (3),   HPL_barrier (3),   HPL_min (3),
39       HPL_max (3), HPL_sum (3).
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43HPL 2.2                        February 24, 2016              HPL_broadcast(3)
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