I'm starting submitting some small test runs to a
cluster, which has MPICH-GM installed, and I found
that when I run the job with MPI using 4 cpus of the
clusters, I get lost atoms. If I run the job using
either a serial version of LAMMPS or with MPI using
just 2 cpus of the clusters, the job runs fine. Why
* I uploaded the latest version of the LAMMPS source
to the cluster and compiled it myself.
* The LAMMPS runs do minimization but not MD.