Re: basic questions about partitions

[Tom Ammon <tom.ammon-wbocuHtxKic@public.gmane.org>]

  Hal,

> The procedure is a little different. You'll need to create a child
> interface (on a partition) first and then you will be able to
> configure it as follows:
>
> echo 0x8001>  /sys/class/net/ib0/create_child
> ifconfig ib0.8001 ...
>
> Note that you'll want the 0x8000 bit on for full membership.
What does "full membership" mean? And are you saying that for full 
membership, any value beginning with 0x8 would work? Can an HCA have 
full membership on multiple partitions simultaneously?

Thanks,

Tom


> -- Hal
>
>> Tom
>>
>> On 7/12/2010 1:06 PM, Hal Rosenstock wrote:
>>> On Mon, Jul 12, 2010 at 3:03 PM, Hal Rosenstock
>>> <hal.rosenstock-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>    wrote:
>>>> Hi Tom,
>>>>
>>>> On 7/12/10, Tom Ammon<tom.ammon-wbocuHtxKic@public.gmane.org>    wrote:
>>>>>    Hi,
>>>>>
>>>>> I have some basic questions about IB partitions.
>>>>>
>>>>> Can an HCA port belong to more than 1 partition at a time?
>>>> Yes.
>>>>
>>>>> How do you configure partitions with opensm? From reading the opensmd
>>>>> man page, it looks like you just create a file called
>>>>> /etc/osm-partitions.conf, with port GUIDs and such, but is this current?
>>>> The default location depends on how OpenSM is configured/built.
>>> I missed this the first time around:
>>>
>>> and yes, the syntax indicated is current.
>>>
>>> -- Hal
>>>
>>>>> I ask because according to the man page the opensm configuration file is
>>>>> in /etc/opensm/ . Can you tell opensm where to look for the partitions
>>>>> file?
>>>> Yes, with either the -P option on the command line or
>>>> partition_config_file line in the options file.
>>>>
>>>> -- Hal
>>>>
>>>>> Thanks,
>>>>>
>>>>> Tom
>>>>>
>>>>> --
>>>>> Tom Ammon
>>>>> Network Engineer
>>>>> Office: 801.587.0976
>>>>> Mobile: 801.674.9273
>>>>>
>>>>> Center for High Performance Computing
>>>>> University of Utah
>>>>> http://www.chpc.utah.edu
>>>>>
>>>>> --
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>>>>>
>> --
>> Tom Ammon
>> Network Engineer
>> Office: 801.587.0976
>> Mobile: 801.674.9273
>>
>> Center for High Performance Computing
>> University of Utah
>> http://www.chpc.utah.edu
>>
>>

-- 
Tom Ammon
Network Engineer
Office: 801.587.0976
Mobile: 801.674.9273

Center for High Performance Computing
University of Utah
http://www.chpc.utah.edu

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