As of MPICH2 1.4.1, the default job type is Hydra, rather than MPD, so if you are using the default, there is no need to start the daemon. See “Starting TotalView Debugging on an MPICH2 Hydra Job”.As of MPICH2 1.4.1, the default job type is Hydra, rather than MPD, so if you are using the default, there is no need to start the daemon. See “Starting TotalView Debugging on an MPICH2 Hydra Job”.