Perhaps you need to build MPI with (at least) the following compiler flags:
-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
which should enable 'large file support' in the standard C library. (FWIW, I
don't think the _GNU_ standard C++ library supports large files yet.)
I ran into (seemingly) the same limit in my application, and broke through
it with these flags.
Caveat emptor (BEWARE): I am not using MPI facilities for I/O, so didn't
notice the limit there, and therefore didn't compile LAM/ROMIO with these
flags.
Vince Virgilio
> -----Original Message-----
> From: Lei_at_UCI [mailto:pan_at_[hidden]]
> Sent: Thursday, September 18, 2003 1:02 PM
> To: LAM/MPI mailing list
> Subject: LAM: Limitation in size of a single file
>
>
> Hi,
>
> The Linux cluster I am using seems to have a
> Limitation of ~2GB on the size one single
> File can be. Both Fortran file I/O and
> MPI parallel file I/O failed with broken
> Pipe on outputting a file of ~2.8GB.
>
> Please help! Sorry I am not a system admin
> Which means if you help me please give me
> Detailed steps on how to resolve this.
>
> Thanks and I appreciate your help!
>
> -Lei
>
> _______________________________________________
> This list is archived at http://www.lam-mpi.org/MailArchives/lam/
>
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