Fix entropy error coming from utility_ops_test

Summary:
Working towards https://github.com/caffe2/caffe2/pull/817.

`E           InvalidArgument: Insufficient bytes of entropy to draw requested array.  shape=(20, 12, 22), dtype=float32.  Can you reduce the size or dimensions of the array?  What about using a smaller dtype?  If slow test runs and minimisation are acceptable, you  could increase settings().buffer_size from 8192 to at least 43253760.`

https://travis-ci.org/caffe2/caffe2/jobs/243867951

/cc kittipatv
Closes https://github.com/caffe2/caffe2/pull/830

Differential Revision: D5276639

Pulled By: akyrola

fbshipit-source-id: 0c21be25ecd931837dc8b0c2cc17048f531350d1
1 file changed
tree: cd1eb75c0324031a11054434211bcabc943d7ef5
  1. .travis/
  2. caffe/
  3. caffe2/
  4. cmake/
  5. docs/
  6. scripts/
  7. third_party/
  8. .Doxyfile
  9. .Doxyfile-c
  10. .Doxyfile-python
  11. .gitignore
  12. .gitmodules
  13. .travis.yml
  14. appveyor.yml
  15. CMakeLists.txt
  16. LICENSE
  17. Makefile
  18. PATENTS
  19. README.md
  20. release-notes.md
README.md

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