> ... do you know some free software that allows to edit netcdf files > (attributes, variables names,...) ? Yes, there is ncedit: http://www.knmi.nl/onderzk/CKO/tools.html It's also possible to manipulate netCDF data with larger packages of utlities such as NCO, NCL, and CDO, for which more information is available from: http://www.unidata.ucar.edu/netcdf/software.html --Russ > -----Original Message----- > From: Unidata netCDF Support [mailto:address@hidden > Sent: vendredi 9 mars 2012 23:03 > To: address@hidden > Cc: address@hidden; address@hidden > Subject: [netCDF #HSK-896839]: netCDF static lib > > Hi Vitaliy, > > Sorry to have taken so long to respond to your question: > > I've the following problem : > > > > - unlimited dimension variable of 10 Gb that I need to read and filter > > its data in accoding to some criteria, and then save the results in > > new 10 Gb variable in new netcdf file. > > > > I'm doing all on my desktop PC and limited in memory (3Gb only) > > > > so I have exceptions when doing allocation(unlim_var(dim1_len, > > unlim_dimlen) > > > > is there solution to handle such a case ? > > A solution is to read the data one record at a time, instead of trying to > read it all into memory at once. Then you only need to allocate enough > memory to hold one record's worth of data at a time. That's what the nccopy > utility that comes with the netCDF C software does to be able to copy, > convert, compress, chunk, or rechunk any netCDF file, no matter how large, > without requiring memory needed to hold all of a variable in memory. > > --Russ > > > Russ Rew UCAR Unidata Program > address@hidden http://www.unidata.ucar.edu > > > > Ticket Details > =================== > Ticket ID: HSK-896839 > Department: Support netCDF > Priority: Critical > Status: Closed > > > Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: HSK-896839 Department: Support netCDF Priority: Critical Status: Closed
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