[openib-general] Configuration of sdp

[Eitan Zahavi]

The  error code is what the standard connect() returns. 
Just "man connect"

EZ

Eitan Zahavi
Senior Engineering Director, Software Architect
Mellanox Technologies LTD
Tel:+972-4-9097208
Fax:+972-4-9593245
P.O. Box 586 Yokneam 20692 ISRAEL


> -----Original Message-----
> From: Sean Hubbell [mailto:shubbell at dbresearch.net]
> Sent: Wednesday, November 29, 2006 4:34 PM
> To: Eitan Zahavi
> Cc: Karun Sharma; openib-general at openib.org
> Subject: Re: [openib-general] Configuration of sdp
> 
> This is what I got in /var/log/messages:
> 
> Nov 29 08:32:14 neptune kernel: sdp_sock(32768:0): rdma_resolve_addr
> failed: -99
> Nov 29 08:32:14 neptune iperf: iperf[28484] libsdp Error connect:
failed with
> code <-1> for SDP fd:5
> 
> Where can I find out about the error messages? Do I still need to go
through
> the code to find these?
> 
> Sean
> 
> Eitan Zahavi wrote:
> > Hi Sean
> >
> > Regarding libsdp.conf:
> >
> > The simplest config that would catch all applications/ports and will
> > NOT break your Eth based connections is:
> >
> > log min-level 7 destination syslog
> > use both server * *:*
> > use both client * *:*
> >
> > Not the level=7 on the "log" directive means that you will get a
line
> > in /var/log/messages for every listen/accept/connect with info that
> > should let you know if the connection was made through SDP or TCP.
> >
> > Sean Hubbell wrote:
> >> Yes, I tried that in our testing when I loaded the ib_sdp (I did
just
> >> use the defaults). I was wondering if the numbers that we are
seeing
> >> seem consistent with everyone elses... and at what point will the
sdp
> >> module increase my bandwidth when using a legacy / third party
> >> network library?
> >>
> >> Sean
> >>
> >> Karun Sharma wrote:
> >>
> >>> Hi Sean:
> >>>
> >>> If you are using OFED 1.1 release, you will find a "README.txt"
file
> >>> (/usr/local/ofed/ directory). In this file, configuration steps of
> >>> SDP are mentioned.
> >>> 1. modprobe ib_sdp
> >>> 2. export LD_PRELOAD=/usr/local/ofed/lib/libsdp.so
> >>> 3. export LIBSDP_CONFIG_FILE=/usr/local/ofed/etc/libsdp.conf
> >>> <application name>.
> >>>
> >>> You may need to modify libsdp.conf before step 3.
> >>>
> >>> Thanks
> >>> Karun
> >>>
> >>>
> >>>
--------------------------------------------------------------------
> >>> ----
> >>>
> >>> *From:* openib-general-bounces at openib.org on behalf of Sean
Hubbell
> >>> *Sent:* Tue 11/28/2006 10:34 PM
> >>> *To:* openib-general at openib.org
> >>> *Subject:* [openib-general] Configuration of sdp
> >>>
> >>> Hello,
> >>>
> >>>   I have a question... we have tested our network on our cluster
> >>> using iperf v2.0.2.
> >>>
> >>> Our first test was using Gig-E network and the results were 941
Mbps.
> >>> (i.e. iperf -c <ipaddress> and iperf -s)
> >>>
> >>> Our second test was using Gig-E network and the results were 1.05
> >>> Mbps using UDP.
> >>> (i.e. iperf -c <ipaddress> -u and iperf -s -u)
> >>>
> >>> Our third test was using IBv4 network and the results was a max of
> >>> 3.8 Mbps using TCP.
> >>> (i.e. iperf -c <ipaddress> -P[1-16] and iperf -s)
> >>>
> >>> Loaded ib_sdp module and then tested:
> >>> Our fourth test was using IBv4 network and the results was a max
of
> >>> 4.16
> >>> Mbps using UDP.
> >>> (i.e. iperf -c <ipaddress> -b1000M -P[1-16] and iperf -s -u)
> >>>
> >>> UNLOADED ib_sdp module and then tested:
> >>> Our fourth test was using IBv4 network and the results was a max
of
> >>> 4.16
> >>> Mbps using UDP.
> >>> (i.e. iperf -c <ipaddress> -b1000M -P[1-16] and iperf -s -u)
> >>>
> >>> My question is what impact would it have on our network if
> >>> configured sdp and is there an example of how to configure sdp
> >>> somewhere on the wiki?
> >>>
> >>> Thanks,
> >>>
> >>> Sean
> >>>
> >>>
> >>> _______________________________________________
> >>> openib-general mailing list
> >>> openib-general at openib.org
> >>> http://openib.org/mailman/listinfo/openib-general
> >>>
> >>> To unsubscribe, please visit
> >>> http://openib.org/mailman/listinfo/openib-general
> >>>
> >>>
> >>
> >>
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> >
> >