[GitHub] aaron900813 opened a new issue #13245: mxnet::cpp::NDArray::WaitAll() take about 160ms

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

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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