Re: [gmx-users] Is amber ff compatible with user-specified potential functions?

2017-09-24 Thread David van der Spoel
On 23/09/17 16:58, Du, Yu wrote: Dear GMX users, After several tests, I found that Verlet (2016.3 version) still don't support the vwdtype=user with tabulated potentials: ERROR 1 [file md.mdp]: With Verlet lists only cut-off and PME LJ interactions are supported So with Verlet on, are ther

Re: [gmx-users] Regarding box length variation after npt and production md run

2017-09-24 Thread Alex
Box size fluctuations during NPT are normal, while their degree may or may not be. In any case, your questions at the moment aren't about Gromacs. They suggest that you need to get a better idea on what barostats are, what they do, how they work, etc, etc. Alex On 9/24/2017 10:46 PM, Dilip H

[gmx-users] Regarding box length variation after npt and production md run

2017-09-24 Thread Dilip H N
Hello, I have ran an NPT simulation followed by NPT Production MD for different concentrations, and after that, if i check the final .gro files of npt.gro and nptmd.gro (the production md .gro file), the box length of nptmd.gro is still fluctuating, for some concentrations the nptmd.gro box length

Re: [gmx-users] Is amber ff compatible with user-specified potential functions?

2017-09-24 Thread Du, Yu
Dear GMX users, Hope you can see this email. Thanks for your help. Yu > -Original Messages- > From: "Du, Yu" > Sent Time: 2017-09-23 22:58:29 (Saturday) > To: gromacs.org_gmx-users@maillist.sys.kth.se > Cc: d...@sioc.ac.cn > Subject: Re: [gmx-users] Is amber ff compatible with user-s

[gmx-users] generating a tpr

2017-09-24 Thread Tomek Stępniewski
Hi, As I understand this is a commond problem, but perhaps somebody has found a novel solutions, I have a pdb, and a full set of forcefields, but in charmm format (rtf files) as well as the corrseponding paramterer files (prm files) and the pdb and psf files, does anybody know of an easy way to gen

Re: [gmx-users] Where can I find Gromos87 forcefield

2017-09-24 Thread atb files
Thanks Prof. David. Sent using Zoho Mail On Sat, 23 Sep 2017 19:00:04 +0530 David van der Spoel wrote On 22/09/17 11:45, atb files wrote: > > > > > Hi all,Where can I get gromos87 parameter file, with all atom types and

Re: [gmx-users] Calculating hydrogen bonds along the length of the& nbsp; & nbsp; & nbsp; & nbsp; Bilayer

2017-09-24 Thread atb files
Thanks James :)Sent using Zoho Mail On Wed, 06 Sep 2017 18:20:03 +0530 Wes Barnett wrote On Mon, Sep 4, 2017 at 2:17 AM, atb files wrote: > > Hi Experts,How can we calculate hydrogen bonds as a function of distance > from the Bilayer centre.ThanksYogi