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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
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On 10/01/2014 12:52 AM, Samrat Rao wrote:
Hi, I plan to use netCDF-4 format for the output of my CFD code written in Fortran 90. The code is written for parallel computation. I know how to read and write netCDF files from a single processor. I would like to output the data from my CFD code into a single netCDF file as opposed to outputing data from each processor individually. I know that many GCMs use this method. I am also aware (not used) parallel-netCDF, but am not inclined in doing so unless there is no other option. Can someone tell be the basic steps for outputing multi-processor data onto a single netCDF file? Or maybe point me to some links so that i can adopt the program for my use?
Well, even though you are down on parallel-netCDF, you have not hurt my feelings. I would suggest you take a look at pnetcdf's quick tutorial -- not for the API calls, but for the discussion of data decomposition.
http://trac.mcs.anl.gov/projects/parallel-netcdf/wiki/QuickTutorial in particular the "real parallel I/O on shared files". ==rob
Thanks, Samrat. -- Samrat Rao Research Associate Engineering Mechanics Unit Jawaharlal Centre for Advanced Scientific Research Bangalore - 560064, India _______________________________________________ netcdfgroup mailing list netcdfgroup@xxxxxxxxxxxxxxxx For list information or to unsubscribe, visit: http://www.unidata.ucar.edu/mailing_lists/
-- Rob Latham Mathematics and Computer Science Division Argonne National Lab, IL USA
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