Writing large files from pnetcdf on IBM

Robert Latham robl at mcs.anl.gov
Thu Mar 15 17:57:34 CDT 2007


On Thu, Mar 15, 2007 at 02:45:31PM -0800, Katie Antypas wrote:
> I am trying to write large files >2GB on Bassi (IBM Power5) at NERSC.  I 
> have installed the 1.0.2pre2 version and there is no problem writing 
> files <2GB, but I can't write any file larger than 2GB.  Using the 
> ncmpidump tool shows 'not a netcdf file'.
> 
> OBJECT_MODE is set to 64 and large file support is enabled.
> 
> I followed this discussion last fall and Rob sent out a patch that fixed 
> this for John.  Did the patch make it into the 1.0.2pre2 release?

This does sound much like John Michalakes's bug.  All the fixes I know
about are in the pre2 release.  

Can you send me your src/lib/ncconfig.h file?

==rob

-- 
Rob Latham
Mathematics and Computer Science Division    A215 0178 EA2D B059 8CDF
Argonne National Lab, IL USA                 B29D F333 664A 4280 315B




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