concurrency experiments.
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commit
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#include "nvtt.h"
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// OpenMP
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#if defined(HAVE_OPENMP)
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#include <omp.h>
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#endif
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#if NV_OS_DARWIN
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//#if defined(HAVE_DISPATCH)
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#include <dispatch/dispatch.h>
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#endif
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namespace nvtt {
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struct SequentialTaskDispatcher : public TaskDispatcher
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{
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virtual void dispatch(Task * task, void * context, size_t count) {
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for (size_t i = 0; i < count; i++) {
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task(context, i);
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}
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}
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};
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#if NV_OS_DARWIN
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// Task dispatcher using Apple's Grand Central Dispatch.
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struct AppleTaskDispatcher : public TaskDispatcher
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{
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virtual void dispatch(Task * task, void * context, size_t count) {
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dispatch_queue_t q = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0);
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dispatch_apply_f(count, q, context, task);
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}
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};
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#endif
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#if defined(HAVE_OPENMP)
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struct OpenMPTaskDispatcher : public TaskDispatcher
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{
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virtual void dispatch(Task * task, void * context, size_t count) {
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#pragma omp parallel
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{
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#pragma omp for
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for (size_t i = 0; i < count; i++) {
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task(context, i);
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}
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}
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}
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};
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#endif
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} // namespace nvtt
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