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#endif
}
void parallel(int nthr, const std::function<void(int, int)> &f) {
nthr = adjust_num_threads(nthr, INT64_MAX);
#if DNNL_CPU_THREADING_RUNTIME == DNNL_RUNTIME_SEQ
for (int i = 0; i < nthr; ++i) {
f(i, nthr);
}
#else
#if defined(DNNL_ENABLE_ITT_TASKS)
auto task_primitive_kind = itt::primitive_task_get_current_kind();
bool itt_enable = itt::get_itt(itt::__itt_task_level_high);
#endif
if (nthr == 1) {
f(0, 1);
return;
}
#if DNNL_CPU_THREADING_RUNTIME == DNNL_RUNTIME_OMP
#pragma omp parallel num_threads(nthr)
{
int nthr_ = omp_get_num_threads();
int ithr_ = omp_get_thread_num();
assert(nthr_ == nthr);
#if defined(DNNL_ENABLE_ITT_TASKS)
if (ithr_ && itt_enable) itt::primitive_task_start(task_primitive_kind);
#endif
f(ithr_, nthr_);
#if defined(DNNL_ENABLE_ITT_TASKS)
if (ithr_ && itt_enable) itt::primitive_task_end();
#endif
}
#elif DNNL_CPU_THREADING_RUNTIME == DNNL_RUNTIME_TBB
tbb::parallel_for(
0, nthr,
[&](int ithr) {
#if defined(DNNL_ENABLE_ITT_TASKS)
bool mark_task = itt::primitive_task_get_current_kind()
== primitive_kind::undefined;
if (mark_task && itt_enable)
itt::primitive_task_start(task_primitive_kind);
#endif
f(ithr, nthr);
#if defined(DNNL_ENABLE_ITT_TASKS)
if (mark_task && itt_enable) itt::primitive_task_end();
#endif
},
tbb::static_partitioner());
#elif DNNL_CPU_THREADING_RUNTIME == DNNL_RUNTIME_THREADPOOL
using namespace dnnl::impl::threadpool_utils;
dnnl::threadpool_interop::threadpool_iface *tp = get_active_threadpool();
if (!tp || dnnl_in_parallel()) {
threadpool_utils::deactivate_threadpool();
for (int ithr = 0; ithr < nthr; ithr++) {
f(ithr, nthr);
}
threadpool_utils::activate_threadpool(tp);
} else {
bool async = tp->get_flags()
& dnnl::threadpool_interop::threadpool_iface::ASYNCHRONOUS;
counting_barrier_t b;
if (async) b.init(nthr);
tp->parallel_for(nthr, [&, tp](int ithr, int nthr) {
bool is_master = threadpool_utils::get_active_threadpool() == tp;
if (!is_master) {
threadpool_utils::activate_threadpool(tp);
#if defined(DNNL_ENABLE_ITT_TASKS)
if (itt_enable) itt::primitive_task_start(task_primitive_kind);
#endif
}
f(ithr, nthr);
if (!is_master) {
#if defined(DNNL_ENABLE_ITT_TASKS)
if (itt_enable) itt::primitive_task_end();
#endif
threadpool_utils::deactivate_threadpool();
}
if (async) b.notify();
});
if (async) b.wait();
}
#endif
#endif
}
using F_1D_t = std::function<void(dim_t)>;
using F_2D_t = std::function<void(dim_t, dim_t)>;
using F_3D_t = std::function<void(dim_t, dim_t, dim_t)>;
using F_4D_t = std::function<void(dim_t, dim_t, dim_t, dim_t)>;
using F_5D_t = std::function<void(dim_t, dim_t, dim_t, dim_t, dim_t)>;
using F_6D_t = std::function<void(dim_t, dim_t, dim_t, dim_t, dim_t, dim_t)>;
using F_1D_thr_t = std::function<void(int, int, dim_t)>;
using F_2D_thr_t = std::function<void(int, int, dim_t, dim_t)>;
using F_3D_thr_t = std::function<void(int, int, dim_t, dim_t, dim_t)>;
using F_4D_thr_t = std::function<void(int, int, dim_t, dim_t, dim_t, dim_t)>;
using F_5D_thr_t
= std::function<void(int, int, dim_t, dim_t, dim_t, dim_t, dim_t)>;
using F_6D_thr_t = std::function<void(
int, int, dim_t, dim_t, dim_t, dim_t, dim_t, dim_t)>;