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Subject [GitHub] [singa] chrishkchris commented on issue #591: Dev branch cpu training problem (with conv and pool)
Date Thu, 20 Feb 2020 05:34:08 GMT
chrishkchris commented on issue #591: Dev branch cpu training problem (with conv and pool)
URL: https://github.com/apache/singa/issues/591#issuecomment-588618031
 
 
   > Hi @chrishkchris , I am still working on this issue, but I am encountering something
very weird.
   > I borrow the code from dnnl example and testing result shows similar performance compared
to mkldnn(conv forward in 5000~microsec).
   > However, after some modification to the example code(just introducing Singa Tensor
dcslin@06ec6ce), I still can get reasonable performance(conv forward in 5000~ microsec). But
the weird part is, the result is not stable, out of 10 times testing, segmentation fault appear
~6 times.
   
   I run your example code but did not find any problem, it display mytestok. The last segmentation
fault of "double free" is due to freeing of variables.  
   
   ```
   [ RUN      ] MYTEST.Forward
   [total]Time difference = 58228[mu s]
   [avg]Time difference = 582[mu s]
   mytestok
   double free or corruption (!prev)
   Aborted (core dumped)
   
   
   ```

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