Segmentation Fault while running basic swarm

I had success on Ubuntu server 16.04 and mysql 5.7.12 with the swarming tests, using pull request https://github.com/numenta/nupic.core/pull/984.

  1. Run the swarming tests

     $ ./scripts/run_nupic_tests.py -w
    
  2. run hotgym

~/nta/nupic/examples/opf/clients/hotgym/simple$ python hotgym.py
INFO:__main__:After 100 records, 1-step altMAPE=23.183145
INFO:__main__:After 200 records, 1-step altMAPE=21.548877
INFO:__main__:After 300 records, 1-step altMAPE=21.227594
INFO:__main__:After 400 records, 1-step altMAPE=20.686270
INFO:__main__:After 500 records, 1-step altMAPE=20.417234
INFO:__main__:After 600 records, 1-step altMAPE=20.852339
INFO:__main__:After 700 records, 1-step altMAPE=20.907660
INFO:__main__:After 800 records, 1-step altMAPE=21.137106
INFO:__main__:After 900 records, 1-step altMAPE=20.875763
INFO:__main__:After 1000 records, 1-step altMAPE=20.789707
~/nta/nupic/examples/opf/clients/hotgym/simple$ echo $?
0

@rhyolight, I moved the conversation about mysql user configuration and NTA_CONF_PATH to its own thread: When swarming, got ERROR 1698 (28000): Access denied for user 'root'@'localhost' mysql