[ferret_users] unexplained hang during list/format=cdf

[Keith Lindsay <klindsay@xxxxxxxx>]

Hi,

I'm experiencing a hang in ferret when I attempt to save a variable to a 
NetCDF file. The commands I am using are

let/units="PgC/y"/title="CO2 Flux, Net"   sfco2_int     = (60*60*24*365)*(12/44)*1e-12*sfco2[x=@din,y=@din]
let/units="PgC/y"/title="CO2 Flux, Ocean" sfco2_int_ocn = (60*60*24*365)*(12/44)*1e-12*sfco2_ocn[x=@din,y=@din]
let/units="PgC/y"/title="CO2 Flux, Land"  sfco2_int_lnd = (60*60*24*365)*(12/44)*1e-12*sfco2_lnd[x=@din,y=@din]
list/clobber/file="testfile"/format="cdf" sfco2_int, sfco2_int_ocn, sfco2_int_lnd

If I change format to "comma" or "tab", the file is created and looks 
fine. But with format="cdf", ferret appears to hang.

ferret reports its version as
        FERRET v6.64
        Linux(gfortran) 2.6.9-89.0.20.ELsmp - 09/16/10

This is on a linux system where "uname -a" reports
Linux mirage2 2.6.18-194.17.4.el5 #1 SMP Wed Oct 20 13:03:08 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

Any idea what's going on?

Have others experienced this sort of behavior?

Thanks, Keith

******************************************************************
Keith Lindsay                http://www.cgd.ucar.edu/oce/klindsay/
email: klindsay@xxxxxxxx   phone: 303-497-1722   fax: 303-497-1700