[GitHub] zhreshold opened a new issue #12567: 1.3.0 release pre-built package contains a buggy openblas version. Causing gluon data loader with large num_workers to crash

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

zhreshold opened a new issue #12567: 1.3.0 release pre-built package contains a buggy openblas version.  Causing gluon data loader with large num_workers to crash
URL: https://github.com/apache/incubator-mxnet/issues/12567
 
 
   
   
   ## Description
   In latest mxnet pip prebuilt packages, when using gluon data loader with num_worker > certain number, it may raise error:
   ```
    OpenBLAS : Program will terminate because you tried to start too many threads.
   ```
   
   Related issue: https://github.com/xianyi/OpenBLAS/issues/1735
   
   ## Environment info (Required)
   
   Ubuntu 16
   
   ```
   pip install mxnet==1.3.0
   ```
   
   ```python
   from mxnet import gluon
   dataset = xxx
   batch_size = 16
   loader = gluon.data.DataLoader(dataset, batch_size, num_workers=16)
   ```
   

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