[mpich-discuss] nemesis

[Rajeev Thakur]

You can also run "make testing" in the top-level mpich2 directory. It
will run the entire test suite in test/mpi. If they run, it would
indicate there is something wrong with your program.

Rajeev 

> -----Original Message-----
> From: mpich-discuss-bounces at mcs.anl.gov 
> [mailto:mpich-discuss-bounces at mcs.anl.gov] On Behalf Of 
> shenqian at tsinghua.org.cn
> Sent: Sunday, August 16, 2009 8:54 AM
> To: mpich-discuss at mcs.anl.gov
> Subject: Re: [mpich-discuss] nemesis
> 
> Hi Guillaume,
> 
> Thanks for your response. 
> 
> Because the program is another company's property, I can't 
> send it to you :-(  If I can reproduce it with my own 
> program, I will send it to you as soon as possible. 
> 
> I'm trying to using Nemesis/MX on top of open-mx for high 
> performance. I got a good performance improvement by using 
> open-mx instead of TCP/IP, but the hang problem at 
> MPI_Barrier() puzzles me these days. Would you tell me some 
> way to debug it? 
> 
> Thanks,
> Qian Shen
>  
> > 
> > Hello,
> > 
> > Yes, Nemesis/MX is supposed to be compatible with Open-MX. 
> Could you 
> > sent me your example program so that I can find out what is the 
> > problem?
> > 
> > 
> > Thanks.
> > Guillaume
> > 
> > shenqian at tsinghua.org.cn a écrit :
> > > Hi,
> > >
> > > I build mpich2-1.1.1 on top of open-mx-1.1.1, and have 
> ch3:nemesis:mx enabled. Nemesis/MX should be compatible with 
> Open-MX, isn't it? I test the examples shipped by mpich2, 
> they work well. But my MPI program always hang on 
> MPI_Barrier(). The output messages are:
> > >
> > > Open-MX: Send request (seqnum 105 sesnum 0) timeout, already sent 
> > > 1001 times, resetting partner status
> > > Open-MX: Cleaning partner 00:11:09:5b:7d:16 endpoint 0
> > > Open-MX: Dropped 1 pending send requests to partner
> > >
> > > It seems like that the requests can not be send to other 
> nodes. If I switch to the traditional TCP/IP stack, use the 
> ch3:nemesis device, the program can run successfully. 
> > >
> > > Could anyone tell me how to handle this issue? 
> > >
> > > Regards,
> > > Qian Shen
> > >
> > >
> > >
> > >
> > >   
> > 
> 
>