[Pvfs2-developers] Problem opening a file in pvfs

[Kevin Harms]

Christina,

   are you sure pvfs2 was detected when you configured MPICH2? I  
believe MPICH2 1.0.8 requires a patch to work with the 2.8.x PVFS code.

http://www.beowulf-underground.org/pipermail/pvfs2-users/2009-March/002739.html

kevin

On Mar 11, 2009, at 5:20 PM, Christina Patrick wrote:

> Hi Everybody,
>
> I recently compiled and installed mpich2-1.0.8 and pvfs-2.8.0. I am
> using pvfs in user mode.
>
> I wrote a program to open a file in write only mode. Whenever I try to
> open the file in a pvfs2 file system,
> (filename is pvfs2:/export/home/patrick/pvfs2-fs/testfile)
> I get an error
> 0: file: io.c, function: main, line:68 error_code: Other I/O error ,
> error stack:
> 0: ADIO_RESOLVEFILETYPE(742): Specified filesystem is not available
>
> However, I am able to open a file in a normal filesystem (I think  
> ext3/nfs/ufs).
> Any ideas why this problem may be happening?
> I tried debugging, but all I get is that it enters the function
> "src/mpi/romio/adio/common/ad_fstype.c":ADIO_ResolveFileType and then
> prints the error message from line 741. The error message is enclosed
> in #ifndef ROMIO_PVFS2 ... #endif.
> I dont understand why it is entering this and printing the error
> message. I even reconfigured the pvfs2 filesystem, but it does not
> solve the problem.
>
> I tried searching the net and found the thread
> http://www.mail-archive.com/pvfs2-users@beowulf-underground.org/msg01483.html
> I even tried touching the file in the pvfs2 filesystem, but it does  
> not work.
>
> Please help me!
>
> Thanks,
> Christina.
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