[GitHub] [incubator-mxnet] xianyujie removed a comment on issue #15275: How to run mxnet(C++) in single-thread mode?

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

xianyujie removed a comment on issue #15275: How to run mxnet(C++) in single-thread mode?
URL: https://github.com/apache/incubator-mxnet/issues/15275#issuecomment-503444586
 
 
   @pengzhao-intel  Here are my test results.
   - From 1 and 2, By recompiling mxnet with ```OPENMP=0```, the number of threads reduced from 33 to 11.
   - From 3 and 4, Adding ```export KMP_AFFINITY=granularity=fine,noduplicates,compact,1,0
   export OMP_NUM_THREADS=1```, and there was no significant change in the results.
   - From 5 and 6, Adding ```export MXNET_ENGINE_TYPE=NaiveEngine```, the result changed significant and the result of 6 is what I need. But throughout the testing process, the number of processes will suddenly increase at the beginning and end of the test .
   1. Compile mxnet with ```OPENMP=1``` and ```USE_CPP_PACKAGE = 1```
   ```
   ubuntu@ubuntu-MW50-SV0:~/xxj$ top -H -b -n1 | grep validat | wc -l
   33
   ```
   2. Compile mxnet with ```OPENMP=0``` and ```USE_CPP_PACKAGE = 1```
   ```
   ubuntu@ubuntu-MW50-SV0:~/xxj$ top -H -b -n1 | grep validat | wc -l
   11
   ```
   3. ```export KMP_AFFINITY=granularity=fine,noduplicates,compact,1,0```
   ```export OMP_NUM_THREADS=1```
   Compile mxnet with ```OPENMP=1``` and ```USE_CPP_PACKAGE = 1```
   ```
   ubuntu@ubuntu-MW50-SV0:~/xxj$ top -H -b -n1 | grep validat | wc -l
   22
   ```
   4. ```export KMP_AFFINITY=granularity=fine,noduplicates,compact,1,0```
   ```export OMP_NUM_THREADS=1```
   Compile mxnet with ```OPENMP=0``` and ```USE_CPP_PACKAGE = 1```
   ```
   ubuntu@ubuntu-MW50-SV0:~/xxj$ top -H -b -n1 | grep validat | wc -l
   11
   ```
   5. ```export MXNET_ENGINE_TYPE=NaiveEngine```
   Compile mxnet with ```OPENMP=1``` and ```USE_CPP_PACKAGE = 1```
   ```
   ubuntu@ubuntu-MW50-SV0:~/xxj$ top -H -b -n1 | grep validat | wc -l
   13
   ```
   6. ```export MXNET_ENGINE_TYPE=NaiveEngine```
   Compile mxnet with ```OPENMP=0``` and ```USE_CPP_PACKAGE = 1```
   ```
   ubuntu@ubuntu-MW50-SV0:~/xxj$ top -H -b -n1 | grep validat | wc -l
   2
   ```
   
   

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