aaron900813 opened a new issue #13245: mxnet::cpp::NDArray::WaitAll() take about 160ms URL: https://github.com/apache/incubator-mxnet/issues/13245 here are codes： tValRestart; net271_executor->Forward(false); std::cout << "Forward use " << tValDuration << " ms" << std::endl; tValRestart; auto targetx = net271_executor->outputs[0].Copy(global_cpu_ctx); auto targety = net271_executor->outputs[1].Copy(global_cpu_ctx); auto targetw = net271_executor->outputs[2].Copy(global_cpu_ctx); auto targeth = net271_executor->outputs[3].Copy(global_cpu_ctx); auto softmax_score = net271_executor->outputs[4].Copy(global_cpu_ctx); auto penalty_t = net271_executor->outputs[5].Copy(global_cpu_ctx); std::cout << "copy cpu use " << tValDuration << " ms" << std::endl; tValRestart; mxnet::cpp::NDArray::WaitAll(); std::cout << "waitall use " << tValDuration << " ms" << std::endl; Is that normal? 6 outputs are float-type data
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