Thank you, I didn't know IPM v2 was released. It will be very helpful. Matthieu
2011/3/4 Mark Howison <[email protected]> > Hi Matthieu, > > The Integrated Performance Monitor (IPM) v2 beta has a POSIX I/O > tracing feature. This will give you detailed output of the underlying > POSIX calls (such as open, write and read) made by your application > (through the pHDF layer). You can download it here: > > http://tools.pub.lab.nm.ifi.lmu.de/web/ipm/ > > To enable I/O tracing, you have to configure with > > ./configure --enable-posixio CFLAGS=-DHAVE_POSIXIO_TRACE > > You have to relink your application against the libipm.a that his > produces (or you can enable the shared library and do an LD_PRELOAD). > After you application runs, you'll have a text file for each MPI rank > with the POSIX calls and their arguments. > > It may also be possible to use MPE to trace the MPI-IO calls, but I've > never tried that route. > > Mark > > On Fri, Mar 4, 2011 at 9:20 AM, Matthieu Dorier > <[email protected]> wrote: > > Hello, > > > > I would like to trace the IO calls of my application, which uses pHDF5. > I'm > > looking for a way to retrieve the set of (rank,file,offset,size) > quadruplets > > representing the list of elementary access resulting from the IO phase of > > the application. Is it possible to configure pHDF5 so it provides such > > trace? > > Thank you, > > > > > > Matthieu Dorier > > > > -- > > Matthieu Dorier > > ENS Cachan, antenne de Bretagne > > Département informatique et télécommunication > > http://perso.eleves.bretagne.ens-cachan.fr/~mdori307/wiki/ > > > > _______________________________________________ > > Hdf-forum is for HDF software users discussion. > > [email protected] > > http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org > > > > > -- Matthieu Dorier ENS Cachan, antenne de Bretagne Département informatique et télécommunication http://perso.eleves.bretagne.ens-cachan.fr/~mdori307/wiki/
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