Hi Rene,

It should be $PVFS2/test/io/bmi/pingpong.c. I have attached copy if you do not have it. You should be able to drop it in that directory and build it.

usage: pingpong -h HOST_URI -s|-c [-u]
       where:
       HOST_URI is tcp://host:port, mx://host:board:endpoint, etc
       -s is server and -c is client
       -u will use unexpected messages (pass to client only)

On the server with hostname foo, run:

$ ./pingpong -h tcp://foo:5000 -s

and on the client, run:

$ ./pingpong -h tcp://foo:5000 -c

If you pass -u, it will test unexpected messages only.

Scott

Attachment: pingpong.c
Description: Binary data



On Oct 30, 2007, at 2:56 PM, Rene Salmon wrote:

Hi Scott,

I have pvfs compiled and configured to use both bmi_ib and bmi_tcp (will
probaly try MX later):

        BMIModules bmi_ib,bmi_tcp

        Alias hpcxe001a ib://hpcxe001:3335,tcp://hpcxe001:3334
        Alias hpcxe001b ib://hpcxe001:3337,tcp://hpcxe001:3336
        Alias hpcxe003a ib://hpcxe003:3335,tcp://hpcxe003:3334
        Alias hpcxe003b ib://hpcxe003:3337,tcp://hpcxe003:3336


I guess maybe its trying to use tcp over IB or something.  I will rip
out the IB stuff so there is no chance of that and try again.

Just looked in cvs and did not see the bmi_pingpong test do you mind
sending me a copy?

Thanks
Rene


On Tue, 2007-10-30 at 11:08 +0000, Scott Atchley wrote:
On Oct 29, 2007, at 11:32 PM, Rob Ross wrote:

To answer your original question, no there's nothing in PVFS that
is purposefully limiting you to 1Gbit/sec.

Hi Rene,

When I used bmi_pingpong to test the network IO performance of PVFS2
(ignoring the file system parts) on Myri-10G Ethernet, bmi_tcp
achieved 625-650 MB/s using a single client and single server:

http://www.myri.com/scs/performance/MX-10G/PVFS2-MX/

Performance of pvfs2-cp will be lower, but it should be above 1 Gb/s.

Scott



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