[openib-general] Problems with SDP on Itanium

[Jerome Pioux]

I am running SDP on rev 3882 on ia64 (modified RHEL4 - 2.6.12 kernel).

I do not run NetPIPE but TTCP with options "-l 1048576 -b 1048576" which I 
think means 1M.
I just tried a run with "-l 2097152 -b 2097152" which then would mean 2M and 
it seems to run okay:

ttcp-t: buflen=2097152, nbuf=45000, align=16384/0, port=5001, 
sockbufsize=2097152  tcp  -> 192.168.0.100
ttcp-t: 94371840000 bytes in 148.11 real seconds = 607.65 MB/sec +++
ttcp-t: 45000 I/O calls, msec/call = 3.37, calls/sec = 303.82
ttcp-t: user: 41016 sys: 36393573 total: 36434589 real: 148112374

But maybe, TTCP does not run message size > 1M even with these options 
set?...
Jerome

----- Original Message ----- 
From: "Grant Grundler" <iod00d at hp.com>
To: "Bob Woodruff" <robert.j.woodruff at intel.com>
Cc: <openib-general at openib.org>
Sent: Wednesday, November 02, 2005 11:42 AM
Subject: Re: [openib-general] Problems with SDP on Itanium


> On Wed, Nov 02, 2005 at 09:27:26AM -0800, Bob Woodruff wrote:
>> Has anyone tried using SDP on Itanium ?
>
> Yes - but it's been 5-6 weeks since I have tried it (SVN r3547).
>
>> I was trying to run a NetPIPE over SDP (svn Rev 3882).
>> It seems to run fine for small transfers, but
>> the applications hangs when it gets to > 1 Megabyte
>> transfers.
>
> I haven't tested message sizes > 128KB.
> I'll include 256/512/1024/2048 KB message sizes in the next round.
>
> And I still owe Michael some investigation results from the
> last round were perf dropped off to near zero for medium
> sized messages.
>
> grant
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