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108 lines
4.2 KiB
C
108 lines
4.2 KiB
C
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./lib/Threads.h
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Copyright (C) 2015
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Author: Peter Boyle <paboyle@ph.ed.ac.uk>
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Author: paboyle <paboyle@ph.ed.ac.uk>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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See the full license in the file "LICENSE" in the top level distribution directory
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*************************************************************************************/
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/* END LEGAL */
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#pragma once
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#ifndef MAX
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#define MAX(x,y) ((x)>(y)?(x):(y))
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#define MIN(x,y) ((x)>(y)?(y):(x))
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#endif
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#define strong_inline __attribute__((always_inline)) inline
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#define COMMA_SAFE(...) __VA_ARGS__
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#ifdef _OPENMP
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#define GRID_OMP
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#include <omp.h>
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#endif
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#ifdef __NVCC__
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#define GRID_NVCC
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#endif
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//////////////////////////////////////////////////////////////////////////////////
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// New primitives; explicit host thread calls, and accelerator data parallel calls
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//////////////////////////////////////////////////////////////////////////////////
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#ifdef GRID_OMP
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#define thread_loop( range , body ) _Pragma("omp parallel for schedule(static)") for range { body ; };
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#define thread_loop_in_region( range , body ) _Pragma("omp for schedule(static)") for range { body ; };
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#define thread_loop_collapse( range , body ) _Pragma("omp parallel for collapse(2)") for range { body };
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#define thread_region _Pragma("omp parallel")
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#define thread_critical _Pragma("omp critical")
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#else
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#define thread_loop( range , body ) for range { body ; };
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#define thread_loop_in_region( range , body ) for range { body ; };
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#define thread_loop_collapse( range , body ) for range { body ; };
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#define thread_region
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#define thread_critical
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#endif
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//////////////////////////////////////////////////////////////////////////////////
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// Deprecated primitives; to eridicate when done delete and fix errors.
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//////////////////////////////////////////////////////////////////////////////////
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#ifdef GRID_OMP
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#define parallel_for _Pragma("omp parallel for schedule(static)") for
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#define parallel_for_internal _Pragma("omp for schedule(static)") for
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#define parallel_region thread_region
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#define parallel_for_nest2 for
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#else
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#define parallel_for for
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#define parallel_for_internal for
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#define parallel_region
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#define parallel_for_nest2 for
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#endif
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//////////////////////////////////////////////////////////////////////////////////
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// Accelerator primitives; fall back to threading
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//////////////////////////////////////////////////////////////////////////////////
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#ifdef GRID_NVCC
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#define accelerator __host__ __device__
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#define accelerator_inline __host__ __device__ inline
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// FIXME ; need to make this a CUDA kernel call
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#define accelerator_loop( iterator, range, body ) \
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typedef decltype(range.begin()) Iterator; \
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auto lambda = [&] (Iterator iterator) { \
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body; \
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}; \
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for(auto it=range.begin();it<range.end();it++){ \
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lambda(it); \
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}
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#define cpu_loop( iterator, range, body ) thread_loop( (auto iterator = range.begin();iterator<range.end();iterator++), { body });
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#else
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#define accelerator
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#define accelerator_inline strong_inline
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#define accelerator_loop( iterator, range, body ) \
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thread_loop( (auto iterator = range.begin();iterator<range.end();iterator++), { body });
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#define cpu_loop( iterator, range, body ) \
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thread_loop( (auto iterator = range.begin();iterator<range.end();iterator++), { body });
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#endif
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