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From: Corey Putkunz (coreysemail_at_[hidden])
Date: 2007-09-03 01:48:30


Hi everyone,

An interesting problem I've discovered with MPI_Read_file (part of the
MPI I/O interface). When trying to read a 256^3 complex array (by
complex I mean "complex" defined in complex.h) into a single
dynamically allocated array (whos memory is successfully allocated).
To read I call:

MPI_File_read ( file_in, data, S, MPI_2DOUBLE_COMPLEX, &status );

(where S=256x256x256) though the call fails and I can't figure out
why. If I reduce the amount of data MPI_File_read attempts to read the
call works. I can find this issue anywhere else on the net. Please
help anyone!

(System is running on an Intel machine, Fedora 7)

Thanks. Corey