H5Part development and discussion

[John Shalf <JShalf AT lbl.gov>]

Its a long story, but Mark identified some anomalous interaction  
between Lustre and the POSIX ftruncate() call that is used by HDF5.

The HDF group has issued a patched release of HDF5 that fixes that  
problem.  Mark is currently testing it.  The highest priority right  
now is to ensure that the patch is validated so that it can be part of  
the mainstream HDF5 release.

-john

On Aug 24, 2009, at 4:19 PM, Andreas Adelmann wrote:
> what is  ftruncate() ?
> aa
> On Aug 25, 2009, at 1:18 AM, John Shalf wrote:
>
> > Once the ftruncate() fix is sorted out, we should retry the H5Part  
> > synthetic benchmark.
> >
> > -john
> >
> > On Aug 24, 2009, at 3:59 PM, Andreas Adelmann wrote:
> > > Dear Colleagues do we have synthetic benchmarks
> > > on H5Part which I can show at the ICAP conference in San  
> > > Francisco  next week?
> > > Attached what I already have, best from los alamos
> > >
> > > Andreas
> > >
> > > <Picture 1.png>
> > > ------
> > > Dr. sc. math. Andreas (Andy) Adelmann
> > > Staff Scientist
> > > Paul Scherrer Institut WLGB/132 CH-5232 Villigen PSI
> > > Phone Office: xx41 56 310 42 33 Fax: xx41 56 310 31 91
> > > Phone Home: xx41 62 891 91 44
> > > -------------------------------------------------------
> > > Wednesday: ETH CAB F 10.1  xx41 44 632 82 76
> > > ============================================
> > > The more exotic, the more abstract the knowledge,
> > > the more profound will be its consequences.
> > > Leon Lederman
> > > ============================================
>
> ------
> Dr. sc. math. Andreas (Andy) Adelmann
> Staff Scientist
> Paul Scherrer Institut WLGB/132 CH-5232 Villigen PSI
> Phone Office: xx41 56 310 42 33 Fax: xx41 56 310 31 91
> Phone Home: xx41 62 891 91 44
> -------------------------------------------------------
> Wednesday: ETH CAB F 10.1  xx41 44 632 82 76
> ============================================
> The more exotic, the more abstract the knowledge,
> the more profound will be its consequences.
> Leon Lederman
> ============================================