[mpich-discuss] How to use myrinet in mpich2?

[Scott Atchley]

Luís,

If you meant GM, then you must use Nemesis/GM:

./configure --with-device=ch3:nemesis:gm ...

Scott

On Jun 24, 2009, at 3:51 PM, Scott Atchley wrote:

> Luís,
>
> Make sure you get MPICH2 1.1 for much improved Nemesis/MX support.
>
> You may also want to try MPICH2-MX 1.0.8p1..3:
>
> http://www.myri.com/scs/download-mpichmx.html
>
> It is based on MPICH2 1.0.8p1.
>
> You may want to compare the two. In my testing, MPICH2-MX has much  
> better shared-memory performance, especially on machine with a lot  
> of cores, and slightly lower latency (~200-300 ns). In MPICH2 1.1,  
> they have support for knem on Intel Core2 and later processors which  
> will give much better shared memory support.
>
> If you need dynamic process management, thread multiple support, and/ 
> or one-sided support, you must use Nemesis/MX.
>
> Scott
>
> On Jun 24, 2009, at 1:33 PM, Darius Buntinas wrote:
>
>> MPICH2 supports myrinet using either TCP or MX.  Using MX will give  
>> you
>> the best performance.  The README file describes the additional
>> configure arguments you'll need to configure with MX.
>>
>> -d
>>
>> On 06/24/2009 11:26 AM, Luís Miranda wrote:
>>> How to use myrinet in mpich2? Do i have to compile specifically to  
>>> use
>>> myrinet?
>>>
>>> Thanks
>
>