[GitHub] piiswrong closed pull request #9444: enabling multithreading in broadcast_reduce

[GitBox <gi...@apache.org>]

piiswrong closed pull request #9444: enabling multithreading in broadcast_reduce
URL: https://github.com/apache/incubator-mxnet/pull/9444
 
 
   

This is a PR merged from a forked repository.
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diff --git a/src/operator/tensor/broadcast_reduce-inl.h b/src/operator/tensor/broadcast_reduce-inl.h
index 1bfe68a771..7f3e5685a0 100644
--- a/src/operator/tensor/broadcast_reduce-inl.h
+++ b/src/operator/tensor/broadcast_reduce-inl.h
@@ -197,6 +197,7 @@ void seq_reduce_compute(const int N, const int M, const bool addto,
                         const DType *big, DType *small, const Shape<ndim> bshape,
                         const Shape<ndim> sshape, const Shape<ndim> rshape,
                         const Shape<ndim> rstride) {
+  #pragma omp parallel for num_threads(engine::OpenMP::Get()->GetRecommendedOMPThreadCount())
   for (int idx = 0; idx < N; ++idx) {
     seq_reduce_assign<Reducer, ndim, DType, OP>(idx, M, addto, big, small, bshape, sshape, rshape,
       rstride);
@@ -266,6 +267,7 @@ void seq_reduce_compute(const int N, const int M, const bool addto,
                         const Shape<ndim> lhs_shape, const Shape<ndim> lhs_stride,
                         const Shape<ndim> rhs_shape, const Shape<ndim> rhs_stride,
                         const Shape<ndim>& lhs_shape0, const Shape<ndim>& rhs_shape0) {
+  #pragma omp parallel for num_threads(engine::OpenMP::Get()->GetRecommendedOMPThreadCount())
   for (int idx = 0; idx < N; ++idx) {
     seq_reduce_assign<Reducer, ndim, DType, OP1, OP2>(idx, M, addto, big, lhs, rhs, small,
       big_shape, lhs_shape0, rhs_shape0, small_shape, rshape, lhs_shape, rhs_shape, rstride,


 

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