On Tue, 29 Jan 2008, matt wrote: > I noticed some strange behavior in output-png+h5 with meep-mpi 0.10.1 > > The png output is incorrect has white patches blocking the fields. If I run > the h5topng -Zc dkbluered on the h5 ouput, the resuling png appears correct > without the white patches. Non-parallel meep does not exhibit this behavior.
The only thing I can think of is that there is some sort of race condition in the filesystem. The processors write their data to the h5 file in chunks, and maybe somehow the filesystem has not synchronized the file before h5topng reads it in? What operating system and filesystem are you using? Are you using HDF5 compiled with MPI support? (Otherwise, Meep uses some hacks to get serialized parallel I/O.) Steven _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
