<div dir="ltr"><div>Hi, all:<br><br> I'm working on port the MPICH2 3.1.4 to an
embedded environment. I met some problems for hydra process management,
Could anyone help me?<br><br>
1. For the old MPD, before the mpirun, there's a daemon process
running on all computer nodes. But I don't see what's hydra's daemon
process in the current MPI document. Could you give me some hints?<br><br>
2. As we run the MPICH2 in a resource constraint environment, the SSH
or the other linux-based launcher may not be used. Does it exist any
simple launcher running on the computer nodes before the mpiexec?<br><br>
3. What's my understanding for hydra is: once the Launcher process
running on all computer nodes, I can use the mpiexec on the control node
to start the parallel jobs? If so, the problem is: Could I start the
Launcher process manually if there's no linux-based launcher? <br><br></div> Thanks!</div>