[CIG-SEISMO] Parallel I/O

[Jeroen Tromp]

Dear Elliott:

Yes, indeed, we are currently working on the implementation of the Adios parallel file format, an extension of the HDF5 and Netcdf file formats.

Best regards,

Jeroen Tromp

On Mar 26, 2013, at 15:25, Elliott Sales de Andrade <esalesde at physics.utoronto.ca> wrote:

> Hello all,
> 
> I was just wondering if anyone has given any thought to, or started implementing, "real" parallel I/O in SPECFEM3D_GLOBE?
> 
> Right now it is parallel in a sense, but to a different file per process. What I'm referring to is I/O to a single file in parallel. As our cluster has a quota on the number of files, it is a bother that so many files are created each mesh, especially given their mostly small size.
> 
> I myself do not have time to work on it now, but my advice is to use a higher level library like HDF5 [1] or NetCDF [2]. Also, I can point you in the direction of a talk on the matter by our cluster [3].
> 
> [1] http://www.hdfgroup.org/HDF5/
> [2] http://www.unidata.ucar.edu/software/netcdf/
> [3] http://wiki.scinethpc.ca/wiki/index.php/Half_Day_Parallel_I/O_Course_-_February_2013
> --
> Elliott Sales de Andrade
> Department of Physics
> University of Toronto
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