[gmx-users] redmine account

2013-12-09 Thread Patrick Fuchs
Hi all, I tried to make an account on http://redmine.gromacs.org/ by filling the online form, but didn't receive any E-mail of confirmation. When I try to register again, it tells me my E-mail is already used, but when I ask for a forgotten passwd it tells me my E-mail doesn't correspond to any

Re: [gmx-users] Compilation issue with F77_FUNC functions?

2013-12-09 Thread Mark Abraham
On Mon, Dec 9, 2013 at 1:44 AM, Michael Shirts wrote: > So, I'm trying to compile with MPI using mpich3. Previous > installations worked, and installations without MPI worked. I'm > getting errors like: > > /h3/n1/shirtsgroup/gromacs_46/gromacs/src/gmxlib/cinvsqrtdata.c:53: > warning: parameter

Re: [gmx-users] simulation using tabulated dihedral potentials.

2013-12-09 Thread Mark Abraham
Do your tabulated functions work on a toy system, like butane? On Dec 9, 2013 6:47 PM, "Chandan Choudhury" wrote: > I am facing some weird problem while using tabulated potentials (esp. > dihedral tabulated potentials) in gromacs 4.6.3. I am trying to generate a > coarse grained (CG) trajectory u

Re: [gmx-users] simulation using tabulated dihedral potentials.

2013-12-09 Thread Chandan Choudhury
On Mon, Dec 9, 2013 at 5:41 PM, Mark Abraham wrote: > Do your tabulated functions work on a toy system, like butane? > No Mark. I didnot try with butane. The simulation stops when I incorporated tabulated dihedral potential. Chandan -- Chandan kumar Choudhury NCL, Pune INDIA -- Gromacs Users m

Re: [gmx-users] simulation using tabulated dihedral potentials.

2013-12-09 Thread Justin Lemkul
On 12/9/13 8:09 AM, Chandan Choudhury wrote: On Mon, Dec 9, 2013 at 5:41 PM, Mark Abraham wrote: Do your tabulated functions work on a toy system, like butane? No Mark. I didnot try with butane. The simulation stops when I incorporated tabulated dihedral potential. Which is precisely why

[gmx-users] Regarding Gromacs 5.0 Beta1 release

2013-12-09 Thread bipin singh
Hi, Please let me know whether the below issue (link) has been addressed in this release: http://bugzilla.gromacs.org/issues/1340 If no then is there any plan to include this in future release. -- *Thanks and Regards,Bipin Singh* -- Gromacs Users mailing list * Please

Re: [gmx-users] simulation using tabulated dihedral potentials.

2013-12-09 Thread Chandan Choudhury
On Mon, Dec 9, 2013 at 6:46 PM, Justin Lemkul wrote: > > > On 12/9/13 8:09 AM, Chandan Choudhury wrote: > >> On Mon, Dec 9, 2013 at 5:41 PM, Mark Abraham >> wrote: >> >> Do your tabulated functions work on a toy system, like butane? >>> >>> No Mark. I didnot try with butane. The simulation sto

Re: [gmx-users] Regarding Gromacs 5.0 Beta1 release

2013-12-09 Thread Michael Shirts
There's two issues here; an actual bug (#1315) with intramolecular 1-4 interactions when combining function type 2 and 1, and the fact that couple-intramol doesn't do exactly what you might expect it to do, i.e.: right now, if one sets coupl-intramol = yes, LJ and Coul 1-4's are left on (uncoupled)

[gmx-users] segmentation fault - orientation restraints - mdrun_mpi(init_orires+0x7f8) [0x7abdf8]

2013-12-09 Thread Alistair Bailey
Dear all, I originally posted this a couple of weeks ago, but haven't had much luck fixing in myself or finding a solution from the forums or elsewhere so I'm re-posting it in the hope someone will have an idea. Apologies for posting multiple times. Originally I tried to extend a protein simulati

Re: [gmx-users] Regarding Gromacs 5.0 Beta1 release

2013-12-09 Thread bipin singh
Thank You Prof. Shirts for your clarification. On Mon, Dec 9, 2013 at 9:40 PM, Michael Shirts wrote: > There's two issues here; an actual bug (#1315) with intramolecular 1-4 > interactions when combining function type 2 and 1, and the fact that > couple-intramol doesn't do exactly what you migh

[gmx-users] 3 GPUs much faster than 2 GPUs with GROMACS-4.6.2 ???

2013-12-09 Thread yunshi11 .
Hi all, I have a physical compute node with 2x 6-core Intel E5649 processors + three NVIDIA Tesla M2070s GPUs. First I tried using all 12 CPU cores + 3 GPUs for an equilibration run (of protein in TIP3 waters), which gave me 8.964 ns/day performance. But I noticed the PME mesh calculation, which

Re: [gmx-users] 3 GPUs much faster than 2 GPUs with GROMACS-4.6.2 ???

2013-12-09 Thread David van der Spoel
On 2013-12-09 18:27, yunshi11 . wrote: Hi all, I have a physical compute node with 2x 6-core Intel E5649 processors + three NVIDIA Tesla M2070s GPUs. First I tried using all 12 CPU cores + 3 GPUs for an equilibration run (of protein in TIP3 waters), which gave me 8.964 ns/day performance. But

Re: [gmx-users] 3 GPUs much faster than 2 GPUs with GROMACS-4.6.2 ???

2013-12-09 Thread yunshi11 .
Hi David, On Mon, Dec 9, 2013 at 9:40 AM, David van der Spoel wrote: > On 2013-12-09 18:27, yunshi11 . wrote: > >> Hi all, >> >> I have a physical compute node with 2x 6-core Intel E5649 processors + >> three NVIDIA Tesla M2070s GPUs. >> >> First I tried using all 12 CPU cores + 3 GPUs for an eq

[gmx-users] why it is symmetric

2013-12-09 Thread Albert
Hello: I am calculating the water density inside my membrane protein along Z directions. I used the a_ri3DC tool in Gridcount which is a patch in Gromacs for calculation: a_ri3Dc -grid gridxdr.dat -profile profile.xvg -xyp xyp.dat -xzp xzp.dat -yzp yzp.dat -rzp rzp.dat -rdf rdf.xvg -zdf zdf.

Re: [gmx-users] OPLS force field issue

2013-12-09 Thread Ehsan Sadeghi
Thanks Justin. I added the bond description in the ffbonded.itp but it does not show in the topol.top file. In ffbonded.itp we have: [ bondtypes ] ; ij func b0 kb OWHW 10.09572 502080.0 ; For TIP4F Water - wlj 1/98 OWLP 10.01750 753120.0

Re: [gmx-users] redmine account

2013-12-09 Thread Roland Schulz
Hi, sorry we had a mixup with the account activation. Your account should be activated now. Roland On Mon, Dec 9, 2013 at 3:35 AM, Patrick Fuchs < patrick.fu...@univ-paris-diderot.fr> wrote: > Hi all, > I tried to make an account on http://redmine.gromacs.org/ by filling the > online form, but

Re: [gmx-users] segmentation fault - orientation restraints - mdrun_mpi(init_orires+0x7f8) [0x7abdf8]

2013-12-09 Thread Mark Abraham
Hi, That looks suspiciously like a bug, perhaps of the same type as 1174. Please do open a new issue on Redmine, with the above content, so that your report does not get lost. If you are able to do cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo and run with that mdrun, then the above stack trace should h

Re: [gmx-users] What does it mean that particle decomposition does not support checkpointing?

2013-12-09 Thread Mark Abraham
Hi, Sorry, I don't remember the observation that led to my statement, but I believed it to be true and since pretty much none of the developers still use particle decomposition, nobody has corrected me! Your observations suggest that checkpointing is working fine for you. You should be able to pro

[gmx-users] how to set B-state locations for absolute position restraints while doing FEP computations

2013-12-09 Thread Christopher Neale
Dear Users: Does anybody know how to set the B-state values for position restraints? I ask because I'm doing FEP of one part of the system, but I want to keep absolute position restraints on a different part of the system. What I want to do is like this: free-energy = yes init-lambda = 0 coupl

Re: [gmx-users] Computing the energy of a crystal unitcell

2013-12-09 Thread Golshan Hejazi
Thanks for your reply.  I have a paracetamol crystal and I would like to estimate the paracetamol/paracetamol interaction per unitcell.  To do this I am doing the following: Energy of interaction of paracetamols per unitcell=  Energy of a unitcell - (Energy of a molecule in the unitcell* number

[gmx-users] pressure based replica exchange

2013-12-09 Thread Jianguo Li
Dear All, Is it possible to do pressure based replica exchange simulations in gromacs? Basically I want to do replica exchange simulations for my membrane system at different surface tensions. If I just set different pressures in the mpd file, then the mdrun will complain "systems are all the s

Re: [gmx-users] Computing the energy of a crystal unitcell

2013-12-09 Thread David van der Spoel
On 2013-12-10 02:40, Golshan Hejazi wrote: Thanks for your reply. I have a paracetamol crystal and I would like to estimate the paracetamol/paracetamol interaction per unitcell. To do this I am doing the following: Energy of interaction of paracetamols per unitcell= Energy of a unitcell - (En