Re: [gmx-users] multinode issue

2014-12-05 Thread Szilárd Páll
I don't think this is a sysconf issue. As you seem to have 16-core (hw thread?) nodes, it looks like sysnconf returned the correct value (16), but the OpenMP runtime actually returned 1. This typically means that the OpenMP runtime was initialized outside mdrun and for some reason (which I'm not

Re: [gmx-users] multinode issue

2014-12-05 Thread Szilárd Páll
On a second thought (and a quick googling), it _seems_ that this is an issue caused by the following: - the OpenMP runtime gets initialized outside mdrun and its threads (or just the master thread), get their affinity set; - mdrun then executes the sanity check, point at which omp_get_num_procs(),

[gmx-users] running g_tune_pme on stampede

2014-12-05 Thread Kevin Chen
Hi, Has anybody tried g_tune_pme on stampede before? It appears stampede only support ibrun, but not mpi -np type of stuff. So I assume one could launch g_tune_pme with mpi using command like this (without -np option), Ibrun g_tune_pme -s cutoff.tpr -launch Unfortunately, it failed. Any

[gmx-users] A small Questions of umbrella samping

2014-12-05 Thread vg
Dear gromacs users I read the tutorial of umbrella sampling and have a small question I don't know I do a umbrella samping simulation as the tutorial show us, the pmf image also like the tutorial result . But I was read another papers like the explain paper of g-wham: JCTC 2010.6 3713-3720.

Re: [gmx-users] A small Questions of umbrella samping

2014-12-05 Thread Justin Lemkul
On 12/5/14 10:54 PM, vg wrote: Dear gromacs users I read the tutorial of umbrella sampling and have a small question I don't know I do a umbrella samping simulation as the tutorial show us, the pmf image also like the tutorial result . But I was read another papers like the explain paper

[gmx-users] how to scale epsilon parameters of Lennard-Jones term in .top file

2014-12-05 Thread 周双艳
Hi all, I am trying to run REST in GROMACS following the way proposed by tsuyoshi terakawa. In their method,they implemented REST by rescaling the force-field parameters without even changing the code. I have also searched in the mailing list and found that we can manipulate the scale parameter