How to debug pvserver with MPI and gdb

A simple yet very practical way to debug pvserver with mpi and gdb.

mpirun -np 4 xterm -e gdb ./bin/pvserver

This will open 4 xterm windows, one for each process. You can then press r to run on each of the instance and place breakpoints as needed.

This does not allows to create breakpoints on all instance with a single command, they need to be repeated.

You can then connect to the pvserver as usual.