[MPICH] Confused about compiling/using mpich2

[Darius Buntinas]

The 'killed by signal 9' message means that the process manager killed 
that process.  This typically happens when one of the other processes 
died or exited without calling MPI_Finalize.  When this happens, the 
process manager assumes that the process aborted and kills the rest of 
the job.

So I would start by figuring out why the other process may be dying 
(also make sure you're calling MPI_Finalize).

-d

On 01/05/2008 06:37 AM, Gaetano Bellanca wrote:
> Hi,
> I'm developing a parallel code using MPICH2 and I'm confused on how to 
> choose the compiler options and how to use mpich2 on clusters of 
> multicore processors.
> 
> My code runs on a 32 bit, single core linux cluster  of 10PCs (pentium 
> IV) without problems (with good performances on a pvfs2 filesystem), but 
> does not run on an AMD 64 X2 Dual Core Processor 5600+ and on a Dual 
> Processor Quad-core Intel Xeon linux box.
> 
> In particular, the program stops during simple MPI_SEND and MPI_RECv 
> operations when I run it with mpiexec -n 2 command with the message 
> 'rank 1 in job 70 hostname_number caused collective abort of all ranks. 
> exit status of rank 1: killed by signal 9'
> 
> When I boot in Windows and run the same code using the Windows version 
> of mpich2, it works regularly without problems. 
> 
> By reading the mpich2 guide, I see that there are different possible 
> choices, for example, for the communication device, but I didn't see big 
> differences by changing it: the code always stops with similar errors.
> 
> Can someone please suggest me the better compiler options for mpich2 
> compilation/use in Linux environment? I'm using the Intel Fortran 10.1  
> compiler, and I'd like to use both the multicore and the multiprocessor 
> facilities of the two different architectures (not mixing them, I mean 
> using AMD and Intel separately).
> 
> Thanks in advance.
> 
> Gaetano
> 
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> Gaetano Bellanca - Department of Engineering - University of Ferrara 
> Via Saragat, 1 - 44100 - Ferrara - ITALY            
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