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> Ed, > > I think I know what's wrong with your gfortran -- you need to have > both GMP and MPFR libraries installed for gfortran to work properly. > On my CYGWIN machine, I have: > > $ cygcheck -c | grep gmp > gmp 4.2.1-1 OK > libgmp3 4.2.1-1 OK > > rsignell@ricsigltxp2 /cygdrive/c/rps/models/esmf > $ cygcheck -c | grep mpfr > libmpfr1 2.2.1-1 OK > mpfr 2.2.1-1 OK > > If you don't have them, run cygwin_setup and select them from the > "math" category. > > -Rich > Howdy Rich! OK, I am now running tests with gfortran under Cygwin, and I am not seeing the problem you are seeing. I have tested with gfortran on both my cygwin systems, and neither encountered the problem yours did. So what is up? I don't know. I have sent my cygwin version information by different email. Can you create large files on this system? (> 2 GB?) Thanks, Ed Ticket Details =================== Ticket ID: JJE-781466 Department: Support netCDF Priority: Emergency Status: Open