[MPICH] getchar

[devteam]

Hi all,

When using mpich1 with mpirun I used to put some getchar() in my code for debug purpose.
Then during computation I had to hit "enter" Nproc times.

I wonder why when using mpiexec (I use mpich2 1.0.4), if I do the same my code freeze and I can't go on.
To obtain the same behaviour I write now: 
If (mytid ==0) getchar();MPI_Barrier(MPI_COMM_WORLD);

Thanks,

Regards,
Etienne Perchat
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