HPL_broadcast man page on DragonFly

HPL_broadcast man page on DragonFly

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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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