[MPICH] thread test alltoall fails

Rajeev Thakur thakur at mcs.anl.gov
Fri Jul 14 12:30:43 CDT 2006

      A new version of MPICH2 will be released in a week or so, which will
have better thread support. If you want to look at a pre-release snapshot of
it, you can find one at


> -----Original Message-----
> From: owner-mpich-discuss at mcs.anl.gov 
> [mailto:owner-mpich-discuss at mcs.anl.gov] On Behalf Of Steve Angelovich
> Sent: Friday, July 14, 2006 11:19 AM
> To: mpich-discuss at mcs.anl.gov
> Subject: [MPICH] thread test alltoall fails
> All,
> What is the current state of threading support for mpich2?  
> I've found a 
> couple of thread tests test/mpi/threads/pt2pt, but the alltoall test 
> fails with a collective abort.  The test threaded_sr runs 
> successfully.  
> Have I overlooked something when building mpich2?
> Build and configuration information;
>   -I'm currently using the latest source downloaded from 
> http://www-unix.mcs.anl.gov/mpi/mpich version 1.0.3. 
>  - I've used the --enable-threads directive
>  - I'm running 32 bit redhat aw 3.0
>  - I'm currently starting a ring with one node on my 
> development machine
>  - I've launched the test with mpiexec -l -n 2 ./alltoall
> Other general questions?
>  - How are updates distributed.  According to the download page 1.0.3 
> was released in Nov of 2005 but there seem to be references 
> to updates 
> on the list.
> Thanks,
> Steve
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