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>From: Bob Wilhelmson <address@hidden> >cc: address@hidden, >Subject: Re: netCDF 64 bit version >Organization: UIUC >Keywords: 200108212157.f7LLvp125042 netCDF 64-bit Hi Bob, > Who is in charge of netCDF now? Do you know of any problems > compiling netCDF for 64 bit machines like the new Itanium? We are > proceeding to try and compile and wanted to know if anyone else has > had any experience We don't have access to an Itanium platform for testing yet, but we have successfully built and tested netCDF on several other 64-bit platforms: - IBM AIX SP - SGI IRIX64 - Sun/SPARC 64-bit "v9" architecture We've also recently built and tested support for netCDF files larger than 2 Gbytes on a 32-bit Linux Pentium system with Large File Support (64-bit file offsets). I'll be writing a netCDF FAQ entry about that soon, since it describes the constraints on large netCDF files in detail. In particular, we created a 6 Gbyte netCDF file on the Linux system that could be accessed by any other system with Large File Support, but if accessed by a system without it would just produce the error message "file too large" on attempting to open the file. So I don't see any obstacles to building on Itanium, if you use the right compiler flags. For the flags used in the above, see http://www.unidata.ucar.edu/staff/russ/netcdf/INSTALL.html --Russ