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Parcels is slow with v1.4.2 of netCDF4 on python3 #513

erikvansebille opened this Issue Dec 21, 2018 · 2 comments


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erikvansebille commented Dec 21, 2018

We've recently seen that Parcels can sometimes be very slow on python3. After some digging around, we think that this is related to a recent upgrade of the netCDF4 package. We therefore suggest to avoid using v1.4.2 of the netCDF4 package, especially if you're using python3.

The plan now is to wait for a future update of netCDF4, and see if that fixes the slowness.


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willirath commented Dec 21, 2018


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HandmannP commented Jan 22, 2019

Does one has to limit the netcdf version of the environment ? like a downgrade via conda-forge? or is this a parcels intern issue - if the case how can I downgrade the netcdf version there? Thanks in advance!

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