[Pvfs2-users] IOR 2.10.2 on PVFS2 1.5.1

[Nirmal Thacker]

Hello

I have a simple configuration of PVFS2 [version 1.5.1]. There exists one
storage server and one Metadata server.

I start them up and test them from a client. The client has a pvfs2tab
file at /etc/pvfs2tab containing:

tcp://node15:3334/pvfs2-fs /mnt/pvfs2 pvfs2 defaults,noauto 0 0
tcp://node23:3334/pvfs2-fs /mnt/pvfs2 pvfs2 defaults,noauto 0 0

The first is the MDS and the second is the Storage

I test this configuration with the pvfs2-ping utility at the client and
it looks great

Two clients [node01 and node02] are now used to benchmark PVFS2 using
IOR. So I have the pvfs2tab file[as above] in the /etc/pvfs2tab
locations at both these clients

I then run IOR:
#mpirun -np 2 ./IOR -a MPIIO -k -o pvfs2:/mnt/pvfs2/N002.test

But I get a bunch of "poorly formatted protocol message received"
errors. I have attached the log of one such run

Im puzzled. I can run PVFS2 using its utilities like pvfs2-touch,
pvfs2-mkdir, pvfs2-rm and pvfs2-ls . Additionally IOR has been built for
MPI-IO.

Any reasons why I get such errors?

As I understand I must prefix "pvfs2" to the final location of the file
with the mount point. I picked this hint up from a script to run IOR for
PVFS at the fisheye archives of PVFS2
[http://www.pvfs.org/fisheye/browse/PVFS/test/automated/mpiio-tests.d/ior-mpiio-2?r=1.2.8.1]

I also would not need the module at the kernel side since I am bypassing
the kernel and going over the network- right? Moreover I do not wish to
use POSIX.

Thanks a ton!
Nirmal Thacker
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