[OMPI users] valgrind problems

[Justin]

Hi,

I'm trying to use valgrind to check if we have any memory problems in 
our code when running with parallel processors.  However,  when I run 
using mpi and valgrind I crashes in various places.  For example some of 
the times it will crash with a segfault within MPI_Allgatherv despite 
the fact that all the arguments to the all gather on all processors is 
completely valid.   If we don't use valgrind the program runs just fine. 

This is on a Debian(lenny) 64 bit machine using the stock mpi package.  
The command used to launch the job is: mpirun -np 8 valgrind -v 
--log-file=valgrind.%p executable.  Are valgrind and openmpi 
compatible?  Is there any special tricks to getting them to work together?

Thanks,
Justin