Patrick- On the netcdf-3 vs netcdf-4 issue I can at the moment only speculate. As a rule, reading small quantities of data with netcdf-4 is always slower than netcdf-3 because the underlying HDF5 file format is based on b-trees rather than the linear disk layout of netcdf-3. Since vars reads a single element at a time, that overhead can, I suspect, be significant. I am, however surprised that it is as large as you show. =Dennis Heimbigner Unidata =Dennis Heimbigner Unidata Ticket Details =================== Ticket ID: ZFB-587742 Department: Support netCDF Priority: Normal Status: Closed
NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.