Switch from netCDF4 to h5py
To avoid serious performance instability, switch away from the
netCDF4 python module and use
After upgrading to Fedora 24, with python 3.5.1, numpy 1.11.0 and netCDF4 1.2.2 performance of PyCAMA dropped significantly compared to python 3.4.3, numpy 1.9.2 and netCDF4 1.1.5. Further investigation showed that the performance drop occurred in the write modules.
Performance of the netCDF4 library has been iffy at times, and this is a good excuse to switch to a more stable system.