[mvapich-discuss] Oversubscription support

[Jonathan Perkins]

Sorry, I meant to ask if you were setting MV2_USE_BLOCKING to 1.

On Mon, Oct 26, 2015 at 10:41 AM Jonathan Perkins <
perkinjo at cse.ohio-state.edu> wrote:

> When you're running with oversubscription, were you
> setting MV2_USE_BLOCKING to 0?  If so, what type of errors were you hitting?
>
> On Mon, Oct 26, 2015 at 10:34 AM Maksym Planeta <
> mplaneta at os.inf.tu-dresden.de> wrote:
>
>> Hi,
>>
>> I'm interested in using MVAPICH library with oversubscription, i.e. with
>> more than one rank per core. In version 2.1 oversubscription worked
>> until certain limit and then the library was just breaking because of
>> bugs.
>>
>> So I updated to 2.2a and found out that the new version contains
>> additional checks (for example in function mv2_get_assigned_cpu_core),
>> which basically forbids to have more than one rank per core.
>>
>> Could you tell me the reason for that? Have you ever tried  about
>> running MVAPICH with oversubscription? And would you at least consider
>> the patches for oversubscription support?
>>
>> --
>> Regards,
>> Maksym Planeta
>>
>> _______________________________________________
>> mvapich-discuss mailing list
>> mvapich-discuss at cse.ohio-state.edu
>> http://mailman.cse.ohio-state.edu/mailman/listinfo/mvapich-discuss
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.cse.ohio-state.edu/pipermail/mvapich-discuss/attachments/20151026/de425e94/attachment.html>