yzhliu commented on a change in pull request #13574: Replaced rand_r with std::
random generation
URL: https://github.com/apache/incubator-mxnet/pull/13574#discussion_r257130502
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File path: src/operator/rnn_impl.h
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@@ -176,13 +176,17 @@ void LstmForwardTraining(DType* ws,
if (dropout > 0.0f) {
#pragma omp parallel for num_threads(omp_threads)
for (int j = 0; j < T * N * H * D; j++) {
- int rand_data = rand_r(&seed_);
+ static thread_local std::random_device device;
Review comment:
suggest to refer to `RandGenerator<xpu>` as I mentioned below. It handles
thread-safe problem without locking. The implement is somewhat tricky though.
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