未验证 提交 135a59ed 编写于 作者: C chengduo 提交者: GitHub

update reduce config (#18334)

test=develop
上级 1bdfd2eb
......@@ -314,18 +314,18 @@ ParallelExecutor::ParallelExecutor(const std::vector<platform::Place> &places,
member_->use_all_reduce_ =
build_strategy.reduce_ == BuildStrategy::ReduceStrategy::kAllReduce;
member_->nranks_ = build_strategy.num_trainers_ * places.size();
#if defined(PADDLE_WITH_CUDA) && defined(_WIN32)
if (member_->use_cuda_) {
PADDLE_ENFORCE(places.size() == 1, "Windows can support Single GPU only.");
}
#endif
if (!member_->use_all_reduce_) {
if (places.size() == 1) {
if (!member_->use_all_reduce_ && member_->nranks_ == 1) {
LOG(INFO) << "If you set build_strategy.reduce with 'Reduce',"
"the number of places should be greater than 1.";
member_->build_strategy_.reduce_ =
BuildStrategy::ReduceStrategy::kAllReduce;
member_->use_all_reduce_ = true;
}
#if defined(PADDLE_WITH_CUDA) && defined(_WIN32)
if (member_->use_cuda_) {
PADDLE_ENFORCE(places.size() == 1, "Windows can support Single GPU only.");
}
#endif
LOG(INFO) << string::Sprintf(
"The number of %s, which is used in ParallelExecutor, is %lu. And "
......
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