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ed5010d65b
Standardize format of AMD copyright notice. AMD-Internal: [CPUPL-3519] Change-Id: I98530e58138765e5cd5bc0c97500506801eb0bf0
129 lines
3.5 KiB
C
129 lines
3.5 KiB
C
/*
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BLIS
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An object-based framework for developing high-performance BLAS-like
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libraries.
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Copyright (C) 2014, The University of Texas at Austin
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Copyright (C) 2018 - 2023, Advanced Micro Devices, Inc. All rights reserved.
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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 are
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met:
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- 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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- 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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- Neither the name(s) of the copyright holder(s) nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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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 COPYRIGHT
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HOLDER 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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#include "blis.h"
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#ifdef BLIS_ENABLE_PTHREADS
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thrcomm_t* bli_thrcomm_create( rntm_t* rntm, dim_t n_threads )
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{
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#ifdef BLIS_ENABLE_MEM_TRACING
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printf( "bli_thrcomm_create(): " );
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#endif
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thrcomm_t* comm = bli_sba_acquire( rntm, sizeof(thrcomm_t) );
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bli_thrcomm_init( n_threads, comm );
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return comm;
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}
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void bli_thrcomm_free( rntm_t* rntm, thrcomm_t* comm )
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{
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if ( comm == NULL ) return;
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bli_thrcomm_cleanup( comm );
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#ifdef BLIS_ENABLE_MEM_TRACING
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printf( "bli_thrcomm_free(): " );
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#endif
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bli_sba_release( rntm, comm );
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}
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#ifdef BLIS_USE_PTHREAD_BARRIER
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void bli_thrcomm_init( dim_t n_threads, thrcomm_t* comm )
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{
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if ( comm == NULL ) return;
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comm->sent_object = NULL;
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comm->n_threads = n_threads;
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bli_pthread_barrier_init( &comm->barrier, NULL, n_threads );
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}
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void bli_thrcomm_cleanup( thrcomm_t* comm )
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{
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if ( comm == NULL ) return;
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bli_pthread_barrier_destroy( &comm->barrier );
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}
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void bli_thrcomm_barrier( dim_t t_id, thrcomm_t* comm )
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{
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bli_pthread_barrier_wait( &comm->barrier );
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}
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#else
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void bli_thrcomm_init( dim_t n_threads, thrcomm_t* comm )
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{
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if ( comm == NULL ) return;
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comm->sent_object = NULL;
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comm->n_threads = n_threads;
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comm->barrier_sense = 0;
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comm->barrier_threads_arrived = 0;
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}
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void bli_thrcomm_cleanup( thrcomm_t* comm )
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{
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}
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void bli_thrcomm_barrier( dim_t t_id, thrcomm_t* comm )
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{
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#if 0
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if ( comm == NULL || comm->n_threads == 1 ) return;
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bool my_sense = comm->sense;
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dim_t my_threads_arrived;
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my_threads_arrived = __sync_add_and_fetch(&(comm->threads_arrived), 1);
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if ( my_threads_arrived == comm->n_threads )
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{
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comm->threads_arrived = 0;
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comm->sense = !comm->sense;
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}
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else
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{
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volatile bool* listener = &comm->sense;
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while( *listener == my_sense ) {}
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}
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#endif
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bli_thrcomm_barrier_atomic( t_id, comm );
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}
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#endif
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#endif
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