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42ea02a34e
Details: - Renamed sandbox/c99 to sandbox/ref99. I wanted to name the sandbox so that it would be thought of as a "reference" sandbox. I kept the "99" to differientiate it from future reference sandboxes that may be written in another language (such as C++). - Updates to sandbox/ref99/README.md.
148 lines
4.3 KiB
C
148 lines
4.3 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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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 of The University of Texas at Austin nor the names
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of its contributors may be used to endorse or promote products
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derived 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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#include "blix.h"
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// This code is enabled only when multithreading is enabled via OpenMP.
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#ifdef BLIS_ENABLE_OPENMP
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void blx_gemm_thread
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(
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gemmint_t func,
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opid_t family,
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obj_t* a,
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obj_t* b,
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obj_t* c,
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cntx_t* cntx,
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cntl_t* cntl
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)
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{
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// Query the total number of threads from the context.
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dim_t n_threads = bli_cntx_get_num_threads( cntx );
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// Allcoate a global communicator for the root thrinfo_t structures.
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thrcomm_t* gl_comm = bli_thrcomm_create( n_threads );
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_Pragma( "omp parallel num_threads(n_threads)" )
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{
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dim_t id = omp_get_thread_num();
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cntl_t* cntl_use;
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thrinfo_t* thread;
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// Create a default control tree for the operation, if needed.
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blx_l3_cntl_create_if( family, a, b, c, cntl, &cntl_use );
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// Create the root node of the current thread's thrinfo_t structure.
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bli_l3_thrinfo_create_root( id, gl_comm, cntx, cntl_use, &thread );
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func
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(
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a,
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b,
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c,
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cntx,
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cntl_use,
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thread
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);
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// Free the control tree, if one was created locally.
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blx_l3_cntl_free_if( a, b, c, cntl, cntl_use, thread );
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// Free the current thread's thrinfo_t structure.
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bli_l3_thrinfo_free( thread );
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}
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// We shouldn't free the global communicator since it was already freed
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// by the global communicator's chief thread in bli_l3_thrinfo_free()
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// (called above).
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}
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#endif
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// This code is enabled only when multithreading is disabled.
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#ifndef BLIS_ENABLE_MULTITHREADING
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void blx_gemm_thread
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(
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gemmint_t func,
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opid_t family,
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obj_t* a,
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obj_t* b,
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obj_t* c,
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cntx_t* cntx,
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cntl_t* cntl
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)
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{
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// For sequential execution, we use only one thread.
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dim_t n_threads = 1;
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dim_t id = 0;
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// Allcoate a global communicator for the root thrinfo_t structures.
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thrcomm_t* gl_comm = bli_thrcomm_create( n_threads );
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cntl_t* cntl_use;
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thrinfo_t* thread;
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// Create a default control tree for the operation, if needed.
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blx_l3_cntl_create_if( family, a, b, c, cntl, &cntl_use );
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// Create the root node of the thread's thrinfo_t structure.
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bli_l3_thrinfo_create_root( id, gl_comm, cntx, cntl_use, &thread );
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func
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(
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a,
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b,
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c,
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cntx,
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cntl_use,
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thread
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);
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// Free the control tree, if one was created locally.
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blx_l3_cntl_free_if( a, b, c, cntl, cntl_use, thread );
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// Free the current thread's thrinfo_t structure.
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bli_l3_thrinfo_free( thread );
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// We shouldn't free the global communicator since it was already freed
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// by the global communicator's chief thread in bli_l3_thrinfo_free()
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// (called above).
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}
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#endif
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