Re: [gmx-users] simulation on 2 gpus

2019-07-26 Thread Kevin Boyd
Sure - you can do it 2 ways with normal Gromacs. Either run the simulations in separate terminals, or use ampersands to run them in the background of 1 terminal. I'll give a concrete example for your threadripper, using 32 of your cores, so that you could run some other computation on the other

Re: [gmx-users] simulation on 2 gpus

2019-07-26 Thread Mark Abraham
Hi, It's rather like the example at http://manual.gromacs.org/current/user-guide/mdrun-performance.html#examples-for-mdrun-on-one-node where instead of gmx mdrun -nt 6 -pin on -pinoffset 0 -pinstride 1 gmx mdrun -nt 6 -pin on -pinoffset 6 -pinstride 1 to run on a machine with 12 hardware

Re: [gmx-users] simulation on 2 gpus

2019-07-26 Thread Gregory Man Kai Poon
Hi Kevin, Thanks for your very useful post. Could you give a few command line examples on how to start multiple runs at different times (e.g., allocate a subset of CPU/GPU to one run, and start another run later using another unsubset of yet-unallocated CPU/GPU). Also, could you elaborate on

Re: [gmx-users] Variation in free energy between GROMACS versions?

2019-07-26 Thread Mark Abraham
Hi, On Wed, 24 Jul 2019 at 21:33, Kenneth Huang wrote: > Hi Mark, > > > Thanks for the reply- I guessed a number of things had changed in the last > decade, but wasn't sure if it was even salvageable as a comparison point > anymore. > > > Out of curiosity, could you elaborate on what sort of

[gmx-users] Simulated tampering using GROMACS software package (protein+membrane)

2019-07-26 Thread Pratiti Bhadra
Dear User, I am trying simulated tampering with Gromacs 2018.1 mdp setting with nstexpanded = 100 simulated-tempering = yes sim-temp-low = 300 sim-temp-high = 355 simulated-tempering-scaling = linear init_lambda_state = 0 temperature_lambdas = 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45

[gmx-users] Gromos force field with Tip5p water model

2019-07-26 Thread nevjernik
Is it possible to use tip5p water model with gromos force field? Thanks -- Gromacs Users mailing list * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting! * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists * For

[gmx-users] topol. top file

2019-07-26 Thread Dhrubajyoti Maji
Dear gromacs users, I am writing the top file for liquid acetamide system for OPLS FF. I am confused with the [pairs] section. Should I give the 1-4 atom numbers here or left it empty for OPLS to calculate this by itself ? Another question is, in [ atomtypes] section what should