ncap2 make_bounds exceeded memory limit

[chrisdane]

Hi

ncap2 -O -4 -s 'defdim("bnds",2); time_bnds=make_bounds(time,$bnds,"time_bnds");' ncfile ncfile

(ncap2 version 4.9.3) of a 2.9G ncfile (ncdump -k = 64-bit offset; cdo showformat = NetCDF2) with

        time = UNLIMITED ; // (3780 currently)
...
        double time(time) ;
                time:standard_name = "time" ;
                time:units = "days since 2686-1-31 00:00:00" ;
                time:calendar = "proleptic_gregorian" ;
                time:axis = "T" ;
...

yields

exceeded memory limit (3006140416 > 2684354560), being killed

and the incomplete file ncfile.pid21269.ncap2.tmp is the result.

Is there a solution to this except running the command chunkwise and/or getting a bigger computer?

Thanks a lot!
Chris

[czender]

Your command looks correct. The error message appears to come from your system, not from NCO. I think you may need to toy with the ulimits setting in your shell, if possible. Try ulimit -u unlimited, or talking to your sysadmin?