[mpich-discuss] Can't receive messages

[Jeff Hammond]

Isn't the process manager infrastructure hetero-safe? At the very least, ssh-ing "uname -a" around the ring of procs can identify the problem on O(1) cost. 

Jeff

Sent from my iPhone

> On Jan 1, 2014, at 11:33 AM, Pavan Balaji <balaji at mcs.anl.gov> wrote:
> 
> 
> If we detect what the local architecture is, how will we communicate it to other processes without having some infrastructure that is hetergeneous-architecture safe?
> 
>  — Pavan
> 
>> On Jan 1, 2014, at 9:50 AM, Jeff Hammond <jeff.science at gmail.com> wrote:
>> 
>> One wonders if MPICH could verify the system was sufficiently homogeneous to function properly during initialization rather than defer detection to an error during communication calls. 
>> 
>> Jeff
>> 
>> Sent from my iPhone
>> 
>>> On Jan 1, 2014, at 8:07 AM, Matthias Neuer <mneuer at web.de> wrote:
>>> 
>>> Am 31.12.2013 18:44, schrieb Pavan Balaji:
>>>> 
>>>> On Dec 31, 2013, at 10:11 AM, Matthias Neuer <mneuer at web.de> wrote:
>>>> 
>>>>>> On 12/31/2013 04:34 PM, Pavan Balaji wrote:
>>>>>> 
>>>>>> Are matze-debian and notebook of the same architecture (x86_64 and running the same OS/configuration)?
>>>>> 
>>>>> No, notebook is x86_32 on debian stable and matze-debian is x86_64 on debian testing, but I compiled the program for each system separately.
>>>> 
>>>> Such heterogeneous configurations are not supported in mpich.
>>> 
>>> Ok, thats the problem then. I didn't find that information in the FAQ or
>>> in the installation manual.
>>> 
>>> Thanks for your help.
>>> Matthias
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> 
> --
> Pavan Balaji
> http://www.mcs.anl.gov/~balaji
> 
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