Would you mind filing these? I suspect you'll have to create patches - it might 
apply cleanly to 1.5, but I'm far less confident about 1.4. You might check to 
see if this even exists in 1.4 as I honestly don't remember.

Thanks
Ralph

On Mar 17, 2011, at 8:57 AM, Damien Guinier wrote:

> Yes please, this fixes is asked by Bull clients.
> 
> damien
> 
> Le 17/03/2011 15:44, Jeff Squyres a écrit :
>> Does this need to be CMR'ed to 1.4 and/or 1.5?
>> 
>> 
>> On Mar 16, 2011, at 10:27 PM, Ralph Castain wrote:
>> 
>>   
>>> Okay, I fixed this in r24536.
>>> 
>>> Sorry for the problem, Damien - thanks for catching it! Went unnoticed 
>>> because the folks at the Labs always use IB.
>>> 
>>> 
>>> On Mar 16, 2011, at 7:20 PM, Ralph Castain wrote:
>>> 
>>>     
>>>> I believe I see the problem - and why it wouldn't show up for IB. It looks 
>>>> like the hier module passes an incorrect flag to the modex unpack 
>>>> function, which causes that function to place the modex values as 
>>>> attributes assigned to the node instead of a process, rather than placing 
>>>> the values into the modex database. So when you look up a value, you get a 
>>>> single value for the entire node.
>>>> 
>>>> Works for IB because the interface info is at the node level. Doesn't work 
>>>> for TCP because the "interface" info is at the proc level.
>>>> 
>>>> Since it was only tested on IB before, this didn't show up. Should be easy 
>>>> to fix.
>>>> 
>>>> On Mar 16, 2011, at 6:15 PM, Jeff Squyres wrote:
>>>> 
>>>>       
>>>>> On Mar 16, 2011, at 5:37 PM, George Bosilca wrote:
>>>>> 
>>>>>         
>>>>>> I just checked and IB does work correctly. But then I remembered that IB 
>>>>>> is different, the connection are peer based, so they don't happens 
>>>>>> during the modex exchange. The data is exchanged over RML messages, but 
>>>>>> outside the modex.
>>>>>>           
>>>>> Not quite.  The openib BTL does use the modex to send around connection 
>>>>> information.  The actual connections are made lazily -- just like the TCP 
>>>>> BTL -- but the OOB CPC (i.e., the default connection mode in the openib 
>>>>> BTL) uses RML to do the 2/3 way handshake.  That's all.
>>>>> 
>>>>> But the point here is: the openib BTL does rely on the modex.
>>>>> 
>>>>> -- 
>>>>> Jeff Squyres
>>>>> jsquy...@cisco.com
>>>>> For corporate legal information go to:
>>>>> http://www.cisco.com/web/about/doing_business/legal/cri/
>>>>> 
>>>>> 
>>>>> _______________________________________________
>>>>> devel mailing list
>>>>> de...@open-mpi.org
>>>>> http://www.open-mpi.org/mailman/listinfo.cgi/devel
>>>>>         
>>>>       
>>> 
>>> _______________________________________________
>>> devel mailing list
>>> de...@open-mpi.org
>>> http://www.open-mpi.org/mailman/listinfo.cgi/devel
>>>     
>> 
>>   
> 
> _______________________________________________
> devel mailing list
> de...@open-mpi.org
> http://www.open-mpi.org/mailman/listinfo.cgi/devel


Reply via email to