1 files changed, 115 insertions, 0 deletions
diff --git a/thirdparty/oidn/mkl-dnn/src/common/mkldnn_thread.hpp b/thirdparty/oidn/mkl-dnn/src/common/mkldnn_thread.hpp
new file mode 100644
index 0000000000..7e5789e2c3
--- /dev/null
+++ b/thirdparty/oidn/mkl-dnn/src/common/mkldnn_thread.hpp
@@ -0,0 +1,115 @@
+/*******************************************************************************
+* Copyright 2017-2018 Intel Corporation
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*******************************************************************************/
+
+#ifndef MKLDNN_THREAD_HPP
+#define MKLDNN_THREAD_HPP
+
+#include "utils.hpp"
+#include "z_magic.hpp"
+
+#define MKLDNN_THR_SEQ 0
+#define MKLDNN_THR_OMP 1
+#define MKLDNN_THR_TBB 2
+
+/* Ideally this condition below should never happen (if the library is built
+ * using regular cmake). For the 3rd-party projects that build the library
+ * from the sources on their own try to guess the right threading... */
+#if !defined(MKLDNN_THR)
+#   define MKLDNN_THR MKLDNN_THR_TBB
+#endif
+
+#if MKLDNN_THR == MKLDNN_THR_SEQ
+#define MKLDNN_THR_SYNC 1
+inline int mkldnn_get_max_threads() { return 1; }
+inline int mkldnn_get_num_threads() { return 1; }
+inline int mkldnn_get_thread_num() { return 0; }
+inline int mkldnn_in_parallel() { return 0; }
+inline void mkldnn_thr_barrier() {}
+
+#define PRAGMA_OMP(...)
+
+#elif MKLDNN_THR == MKLDNN_THR_OMP
+#include <omp.h>
+#define MKLDNN_THR_SYNC 1
+
+inline int mkldnn_get_max_threads() { return omp_get_max_threads(); }
+inline int mkldnn_get_num_threads() { return omp_get_num_threads(); }
+inline int mkldnn_get_thread_num() { return omp_get_thread_num(); }
+inline int mkldnn_in_parallel() { return omp_in_parallel(); }
+inline void mkldnn_thr_barrier() {
+#   pragma omp barrier
+}
+
+#define PRAGMA_OMP(...) PRAGMA_MACRO(CHAIN2(omp, __VA_ARGS__))
+
+#elif MKLDNN_THR == MKLDNN_THR_TBB
+#include "tbb/task_arena.h"
+#include "tbb/parallel_for.h"
+#define MKLDNN_THR_SYNC 0
+
+inline int mkldnn_get_max_threads()
+{ return tbb::this_task_arena::max_concurrency(); }
+inline int mkldnn_get_num_threads() { return mkldnn_get_max_threads(); }
+inline int mkldnn_get_thread_num()
+{ return tbb::this_task_arena::current_thread_index(); }
+inline int mkldnn_in_parallel() { return 0; }
+inline void mkldnn_thr_barrier() { assert(!"no barrier in TBB"); }
+
+#define PRAGMA_OMP(...)
+
+#endif
+
+/* MSVC still supports omp 2.0 only */
+#if defined(_MSC_VER) && !defined(__clang__) && !defined(__INTEL_COMPILER)
+#   define collapse(x)
+#   define PRAGMA_OMP_SIMD(...)
+#else
+#   define PRAGMA_OMP_SIMD(...) PRAGMA_MACRO(CHAIN2(omp, simd __VA_ARGS__))
+#endif // defined(_MSC_VER) && !defined(__INTEL_COMPILER)
+
+namespace mkldnn {
+namespace impl {
+
+inline bool mkldnn_thr_syncable() { return MKLDNN_THR_SYNC == 1; }
+
+template <typename T, typename U>
+inline void balance211(T n, U team, U tid, T &n_start, T &n_end) {
+    T n_min = 1;
+    T &n_my = n_end;
+    if (team <= 1 || n == 0) {
+        n_start = 0;
+        n_my = n;
+    } else if (n_min == 1) {
+        // team = T1 + T2
+        // n = T1*n1 + T2*n2  (n1 - n2 = 1)
+        T n1 = utils::div_up(n, (T)team);
+        T n2 = n1 - 1;
+        T T1 = n - n2 * (T)team;
+        n_my = (T)tid < T1 ? n1 : n2;
+        n_start = (T)tid <= T1 ? tid * n1 : T1 * n1 + ((T)tid - T1) * n2;
+    }
+
+    n_end += n_start;
+}
+
+} // namespace impl
+} // namespace mkldnn
+
+#include "mkldnn_thread_parallel_nd.hpp"
+
+#endif
+
+// vim: et ts=4 sw=4 cindent cino^=l0,\:0,N-s