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Hello, You will need to use 'parallel-netcdf' for netCDF3 files; if you are working with netCDF4 files ,you will need to install parallel-hdf5. netCDF4 uses the HDF5 library for file I/O. If libhdf5 was installed with parallel I/O support, you should not need to do anything extra with netCDF. I hope this information is helpful, -Ward > Hi support, > > I am executing cloud simulation on PALM (Parallelized LES model). That > simulation require 100 processors for execution. I want to write the output > data generated by all the processors in to a single file i.e single netcdf > file. Only one file (netcdf file) should be opened for each one of the > processor by constrain of offset. > > -- > Thanks and regards, > Sachin > > Ticket Details =================== Ticket ID: AFX-418795 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.