root / src / comm / HPL_bcast.c @ 1
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/*
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* -- High Performance Computing Linpack Benchmark (HPL)
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* HPL - 2.0 - September 10, 2008
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* Antoine P. Petitet
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* University of Tennessee, Knoxville
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* Innovative Computing Laboratory
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* (C) Copyright 2000-2008 All Rights Reserved
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*
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* -- Copyright notice and Licensing terms:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions, and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgement:
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* This product includes software developed at the University of
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* Tennessee, Knoxville, Innovative Computing Laboratory.
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*
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* 4. The name of the University, the name of the Laboratory, or the
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* names of its contributors may not be used to endorse or promote
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* products derived from this software without specific written
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* permission.
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*
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* -- Disclaimer:
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* ---------------------------------------------------------------------
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*/
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/*
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* Include files
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*/
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#include "hpl.h" |
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#ifdef STDC_HEADERS
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int HPL_bcast
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HPL_T_panel * PANEL, |
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int * IFLAG
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) |
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#else
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int HPL_bcast
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( PANEL, IFLAG ) |
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HPL_T_panel * PANEL; |
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int * IFLAG;
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#endif
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{
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/*
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* Purpose
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* =======
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*
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* HPL_bcast broadcasts the current panel. Successful completion is
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* indicated by IFLAG set to HPL_SUCCESS on return. IFLAG will be set to
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* HPL_FAILURE on failure and to HPL_KEEP_TESTING when the operation was
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* not completed, in which case this function should be called again.
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*
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* Arguments
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* =========
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*
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* PANEL (input/output) HPL_T_panel *
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* On entry, PANEL points to the current panel data structure
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* being broadcast.
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*
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* IFLAG (output) int *
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* On exit, IFLAG indicates whether or not the broadcast has
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* occured.
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*
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* ---------------------------------------------------------------------
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*/
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/*
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* .. Local Variables ..
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*/
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int ierr;
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HPL_T_TOP top; |
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/* ..
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* .. Executable Statements ..
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*/
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if( PANEL == NULL ) { *IFLAG = HPL_SUCCESS; return( HPL_SUCCESS ); } |
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if( PANEL->grid->npcol <= 1 ) |
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{ *IFLAG = HPL_SUCCESS; return( HPL_SUCCESS ); }
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/*
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* Retrieve the selected virtual broadcast topology
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*/
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top = PANEL->algo->btopo; |
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switch( top )
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{
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case HPL_1RING_M : ierr = HPL_bcast_1rinM( PANEL, IFLAG ); break; |
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case HPL_1RING : ierr = HPL_bcast_1ring( PANEL, IFLAG ); break; |
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case HPL_2RING_M : ierr = HPL_bcast_2rinM( PANEL, IFLAG ); break; |
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case HPL_2RING : ierr = HPL_bcast_2ring( PANEL, IFLAG ); break; |
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case HPL_BLONG_M : ierr = HPL_bcast_blonM( PANEL, IFLAG ); break; |
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case HPL_BLONG : ierr = HPL_bcast_blong( PANEL, IFLAG ); break; |
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default : ierr = HPL_SUCCESS;
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} |
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return( ierr );
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/*
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* End of HPL_bcast
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*/
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} |