Writing large files from pnetcdf on IBM

[Robert Latham]

On Thu, Mar 15, 2007 at 05:57:34PM -0500, Robert Latham wrote:
> 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?

Ok, the nccconfig.h file looks just fine: all the sizes are what I'd
expect to see.  

If you are already using the NC_64BIT_OFFSET flag to
ncmpi_create/nfmpi_create, then the next step would be to see if I can
reproduce this problem.   Are you using a code that I can build/run
on, say Argonne's BGL ?  

==rob

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