Hi, all:

I am now studying a system of Si and to obtain a good statistic average, for the same system, I conducted many simulations start with different random seed, but everything else is the same, simple NVT relaxation. However it happened to me that, let’s say if I throw 100 simulations into the cluster, 90 of them will be finished very quickly and almost ends at the same time, however there are always several of them proceed very slowly and takes almost ten time longer to reach the same tilmestep.

My question is that has anyone else encountered this problem? Is this a problem of LAMMPS at all? I am thinking about it can be either the problem of the cluster or LAMMPS, can anyone help?

Thanks

Weinan