[MPICH] nemesis in a threaded code

Darius Buntinas buntinas at mcs.anl.gov
Wed Apr 11 16:22:39 CDT 2007


Hmm, what do you mean by "dropping packages"?  What symptoms are you seeing?

Darius

chong tan wrote:
> that is what I thought too.  But without using --enable-threads, nemesis is
> dropping packages randomly in a threaded env.  I will rebuild with
> --enable-threads=funnel to see what happen.
>  
> tan
> 
> 
>  
> ----- Original Message ----
> From: Darius Buntinas <buntinas at mcs.anl.gov>
> To: chong tan <chong_guan_tan at yahoo.com>
> Cc: mpich-discuss at mcs.anl.gov
> Sent: Wednesday, April 11, 2007 1:07:04 PM
> Subject: Re: [MPICH] nemesis in a threaded code
> 
> Nemesis only supports thread_single.  However, as long as you ensure
> that only one thread is making MPI calls, it should work fine.
> 
> Darius
> 
> chong tan wrote:
>  > with MPI calls done by the main thread, nemesis is dropping packages.  
>  > Should I build MPICH
>  > using --enable-threads=funneled ?
>  >  
>  > thanks
>  > tan
>  >  
>  >
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