Hello,
We use netCDF and sometimes create and read netCDF files with different computer
s.
Unfortunately I have found a problem when reading a (very) small float from
a netCDF file on a DEC ALPHA (OSF/1).
I can read this float on a convex and on a DECstation 5000/125 (ultrix). The val
ue is
approximatively 0..
When I use ncdump
-on a convex
netcdf wkxy3 {
dimensions:
lon = 1 ;
variables:
float wkxy3(lon) ;
data:
wkxy3 = 0 ;
}
-on a DECstation 5000
netcdf wkxy3 {
dimensions:
lon = 1 ;
variables:
float wkxy3(lon) ;
data:
wkxy3 = 1.401298e-45 ;
}
-on a DEC ALPHA,
a floating exception occurs and a core dump is created.
I guess the origin of the problem is the value itself (less than FLT_MIN)
But the DECstation 5000 behaviour is better as well as the Convex ...
Do you have any suggestion to read properly small float values on a DEC ALPHA ?
I give you below the netCDF file, encoded with uuencode.
Thanks for your help,
Jean-Francois Foccroulle, jf@xxxxxxxxxxxxxx
Institut d'Astronomie et de Geophysique
1348 Louvain-la-Neuve
Belgium
begin 644 wkxy3.nc
M0T1&`0`````````*`````0````-L;VX``````0``````````````"P````$`
K```%=VMX>3,````````!````````````````````!0````0```!4`````0$`
`
end
