[gmx-users] dear KUTZNER (flow control)

[Carsten Kutzner]

On Jan 6, 2009, at 12:08 PM, ha salem wrote:

> Dear Kutzner
> have I activate flow control on all  ports of switch?I have 8  
> machine with intel core2quad cpus my switch is HP procurve 2824
> can you lead me to some documenations for true configuration of  
> switch for Gromacs cluster
> Thank You
Find out the IP address of the switch, then telnet there. You will see  
some prompt
like

ProCurve Switch 2848#

then type <menu>. Under item 2) subitem 2) you will find the port/ 
trunk settings. There is
a column "Flow Ctrl" on the right hand side for each port which you can
toggle from "Disable" to "Enable" with the space bar. More information  
will
be available in the manual, see e.g.

http://www.hp.com/rnd/support/manuals/2800.htm

Carsten

>
>
>
>
> --- On Fri, 1/2/09, Carsten Kutzner <ckutzne at gwdg.de> wrote:
>
>> From: Carsten Kutzner <ckutzne at gwdg.de>
>> Subject: Re: [gmx-users] dear KUTZNER (flow control)
>> To: greencomp86 at yahoo.com, "Discussion list for GROMACS users" <gmx-users at gromacs.org 
>> >
>> Date: Friday, January 2, 2009, 5:27 PM
>> Dear Ha Salem,
>>
>> in all the switches we tested at that time, flow control
>> was disabled by default. You can
>> connect to the switch (e.g. via telnet) and activate flow
>> control. For the ProCurve switches
>> flow control can be enabled and disabled for each of the
>> ports individually.
>>
>> Carsten
>>
>>
>>
>> Am 31.12.2008 um 21:29 schrieb ha salem:
>>
>>> dear Dr kutzner
>>> you showed flow control on HP procurve flow control
>> prevents network congestion,I want know is this feature(flow
>> control) is active by default
>>> or we must do some configuration on this switch
>>> thank you
>>>
>>>
>>>
>>>
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>
>
>
>

--
Dr. Carsten Kutzner
Max Planck Institute for Biophysical Chemistry
Theoretical and Computational Biophysics
Am Fassberg 11
37077 Goettingen, Germany
Tel. +49-551-2012313, Fax: +49-551-2012302
http://www.mpibpc.mpg.de/home/grubmueller/ihp/ckutzne