Re: [gmx-users] Simulation at high temperature

2014-07-16 Thread rajat desikan
un)subscribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or > send a mail to gmx-users-requ...@gromacs.org. > -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 13), Dept. of Chemical Engineering, Indian Institute of

Re: [gmx-users] g_sas

2014-08-16 Thread rajat desikan
Best, > Eric > -- > 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 (un)subscribe requests visit >

Re: [gmx-users] g_sas

2014-08-16 Thread rajat desikan
Hi Eric, Sorry, I misread your mail. You cannot compute the vacuum accessible surface area for a liquid because the molecules are in constant motion. Regards, On Sat, Aug 16, 2014 at 9:15 PM, rajat desikan wrote: > Hi Eric, > 1) Yes. Use a probe radius of 0 nm. > 2) No. There is n

Re: [gmx-users] g_sas

2014-08-16 Thread rajat desikan
> This should not be necessary; you can provide the trajectory and g_sas > should do this for you. Whether or not that output is meaningful to you is > up to you; I have never dealt in vacuum-accessible SA. > > -Justin > > Thanks again Rajat, >> >> Best, >>

Re: [gmx-users] Plotting hydrogen bonds and salt bridges.

2014-08-23 Thread rajat desikan
n)subscribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or > send a mail to gmx-users-requ...@gromacs.org. > -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 13), Dept. of Chemical Engineering, Indian Institute of Science, B

Re: [gmx-users] gromacs

2014-08-30 Thread rajat desikan
http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting! > > * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists > > * For (un)subscribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or send a > mail to gmx-u

Re: [gmx-users] How to combine Slipid FF with amber FF?

2014-08-31 Thread rajat desikan
st? Read http://www.gromacs.org/Support/Mailing_Lists > > * For (un)subscribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or send a > mail to gmx-users-requ...@gromacs.org. > -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 13), D

Re: [gmx-users] How to combine Slipid FF with amber FF?

2014-08-31 Thread rajat desikan
Hi, I assumed that you had gone through the forcefield.ff files on Slipids webpage. You need to include the following section at the end in your ffnonbonded.itp (some of the spaces may be missing below). I suggest modifying a local copy of your desired Amber ff. ; SLIPIDS STARTS HERE HAL11

Re: [gmx-users] adding ions in the genion for multimeric proteins

2014-09-03 Thread rajat desikan
cribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or > send a mail to gmx-users-requ...@gromacs.org. > -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 13), Dept. of Chemical Engineering, Indian Institute of Science, Banga

Re: [gmx-users] Regarding msd

2014-10-08 Thread rajat desikan
rt/Mailing_Lists/GMX-Users_List before > posting! > > * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists > > * For (un)subscribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or > send a mail to gmx-users-requ...@gromacs.org . &

Re: [gmx-users] Regarding msd

2014-10-08 Thread rajat desikan
trajectory). Since Pratibha wants to test her own code, the way she treats pbc is something to keep in mind. On Wed, Oct 8, 2014 at 4:59 PM, Justin Lemkul wrote: > > > On 10/8/14 3:21 AM, rajat desikan wrote: > >> Hi, >> You need to use -pbc nojump to calculate the msd. Usin

Re: [gmx-users] Naughty Vacuum Bubble in our Vesicle!

2014-10-27 Thread rajat desikan
> * 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 (un)subscribe requests visit > > https://maillist.sys.kth.se/mail

Re: [gmx-users] Naughty Vacuum Bubble in our Vesicle

2014-10-27 Thread rajat desikan
gt; > * For (un)subscribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or > send a mail to gmx-users-requ...@gromacs.org. > -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 13), Dept. of Chemical Engineering, Indian Institute

Re: [gmx-users] Making index file

2014-11-04 Thread rajat desikan
ww.gromacs.org/Support/Mailing_Lists > > * For (un)subscribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or > send a mail to gmx-users-requ...@gromacs.org . > -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 1

Re: [gmx-users] Making index file

2014-11-04 Thread rajat desikan
A using the following command, I get 10 atoms, but I should > get > > > only 1 atom. > > > > > > r 14 & a CA & chain A. > > > > > > It means that the tool is taking CA of residue 14 from all 10 chains.. > > > > > > Still the pro

[gmx-users] SASA with rhombic dodecahedron

2014-11-10 Thread rajat desikan
any way to go about this? Repeating the simulation is unfortunately not an option. Thanks. Regards, -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 13), Dept. of Chemical Engineering, Indian Institute of Science, Bangalore -- Gromacs Users mailing list * Please searc

Re: [gmx-users] SASA with rhombic dodecahedron

2014-11-10 Thread rajat desikan
; On Mon, Nov 10, 2014 at 9:49 AM, rajat desikan > wrote: > > > Dear All, > > > > SASA calculations of a solvated protein in a rhombic dodecahedron gives > the > > following warning: > > > > WARNING: non-rectangular boxes may give erroneous results or cr

Re: [gmx-users] SASA with rhombic dodecahedron

2014-11-10 Thread rajat desikan
hanks. Regards, On Mon, Nov 10, 2014 at 6:36 PM, rajat desikan wrote: > Thank you, Tsjerk. I will take a look. Are there any compatibility issues > with a 4.6.4 trajectory and GMX 5 analysis tools? > > On Mon, Nov 10, 2014 at 4:04 PM, Tsjerk Wassenaar > wrote: > >> Hi Raj

[gmx-users] Problems during installation

2018-07-16 Thread Rajat Desikan
les/mdrun.dir/all] Error 2 Makefile:162: recipe for target 'all' failed make: *** [all] Error 2 I have installed cuda 9.1, openmm, fftw, open-mpi and all other necessary software, so I'm at a loss. Please help me out. Google did not have much leads. Thank you. Regards, Rajat -- Dr.

Re: [gmx-users] Problems during installation

2018-07-16 Thread Rajat Desikan
> > On Mon, Jul 16, 2018 at 6:47 PM Rajat Desikan > wrote: > > > Dear all, > > I'm trying to install openmm enabled version of gromacs 4.6.7 on a 6-core > > i7 machine with two GTX 1080 Ti GPUs. I am repeatedly facing a rather > > strange error while running ma

Re: [gmx-users] Problems during installation

2018-07-17 Thread Rajat Desikan
Justin, Lovely advice. I'll definitely consider it :) Thank you. Regards, Rajat On Mon, Jul 16, 2018 at 11:15 PM Justin Lemkul wrote: > > > On 7/16/18 1:42 PM, Rajat Desikan wrote: > > Hi Mark, > > > > Thank you for the quick answer. My group is experimenting

Re: [gmx-users] Problems during installation

2018-07-19 Thread Rajat Desikan
áll wrote: > On Mon, Jul 16, 2018 at 7:43 PM Rajat Desikan > wrote: > > > Hi Mark, > > > > Thank you for the quick answer. My group is experimenting with a > GPU-heavy > > processor-light configuration similar to the Amber machines available > from > >

[gmx-users] Unable to install 5.1.14

2017-08-27 Thread Rajat Desikan
DGMX_BUILD_OWN_FFTW=ON -DREGRESSIONTEST_DOWNLOAD=ON -DCMAKE_INSTALL_PREFIX=/usr/local/gromacs514 -DGMX_USE_RDTSCP=off I've tried other permutations of the above command (without -DGMX_USE_RDTSCP=off for instance) and nothing seems to work. Thank you for your time. Regards, Rajat -- Dr. Rajat Desikan

Re: [gmx-users] Unable to install 5.1.14

2017-08-29 Thread Rajat Desikan
to older, but you can bump into > other mish-mash issues. I do not recommend that. > > > > On Sunday, August 27, 2017, 11:36:21 PM GMT+3, Rajat Desikan < > rajatdesi...@gmail.com> wrote: > > Dear All, > I had removed gromacs 5.1.14. from my system (Ubuntu 16

Re: [gmx-users] gmx trjconv -center not working?

2019-02-08 Thread Rajat Desikan
Hi Mala, Please combine -center with "-pbc mol -ur compact" and check. Regards, Rajat -- Dr. Rajat Desikan Invictus Oncology, Delhi -- Gromacs Users mailing list * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting! * Can&#x

Re: [gmx-users] gmx trjconv -center not working?

2019-02-08 Thread Rajat Desikan
tach test files that show this behavior. Rajat On Fri, 8 Feb 2019, 5:27 pm Justin Lemkul > > On 2/8/19 5:17 AM, Rajat Desikan wrote: > > Hi Mala, > > Please combine -center with "-pbc mol -ur compact" and check. > > Compact unit cell representation is only use

Re: [gmx-users] nstlist and performances

2013-11-18 Thread rajat desikan
cribe requests to the list. Use the > > www interface or send it to gmx-users-requ...@gromacs.org. > > * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists > > > -- > gromacs.org_gmx-users mailing list > gromacs.org_gmx-users@maillist.sys.kth

Re: [gmx-users] nstlist and performances

2013-11-19 Thread rajat desikan
)? Thanks, On Tue, Nov 19, 2013 at 4:52 PM, Mark Abraham wrote: > On Tue, Nov 19, 2013 at 6:12 AM, rajat desikan >wrote: > > > Hi, > > I would be very careful about increasing nstlist for big systems. This > can > > lead to nonphysical phenomena, especially

[gmx-users] Coulombic potential modifiers in Gromacs 4.6.4.

2013-11-21 Thread rajat desikan
. What does the coulomb-modifier do? We are accounting for the long range coulombic interactions using reciprocal space sums in PME, right? What exactly is the shift here? Thanks -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 13), Dept. of Chemical Engineering, Indian Institu

Re: [gmx-users] Coulombic potential modifiers in Gromacs 4.6.4.

2013-11-22 Thread rajat desikan
03 PM, Mark Abraham wrote: > On Nov 21, 2013 9:20 AM, "rajat desikan" wrote: > > > > Hi All, > > > > I was wondering about the coulomb-modifier = Potential-shift-Verlet > option > > in conjunction with the Verlet cut-off scheme and PME. > &g

Re: [gmx-users] heating

2013-12-04 Thread rajat desikan
/Support/Mailing_Lists/GMX-Users_List before > posting! > > * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists > > * For (un)subscribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or > send a mail to gmx-users-requ...@gromacs.

Re: [gmx-users] heating

2013-12-04 Thread rajat desikan
t; > >> Department of Pharmaceutical Sciences > >> School of Pharmacy > >> Health Sciences Facility II, Room 601 > >> University of Maryland, Baltimore > >> 20 Penn St. > >> Baltimore, MD 21201 > >> > >> jalem...@outerbanks.umaryland.

[gmx-users] Trouble running 4.6.4. on cpu+gpu but not on gpu alone

2013-12-10 Thread rajat desikan
troubleshooting, please check the GROMACS” -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 13), Dept. of Chemical Engineering, Indian Institute of Science, Bangalore -- Gromacs Users mailing list * Please search the archive at http://www.gromacs.org/Support/Mailing_List

[gmx-users] Strange trjconv error

2013-12-10 Thread rajat desikan
tomnumber= -1}... Any idea about how to proceed. I am quite stumped. Thanks. -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 13), Dept. of Chemical Engineering, Indian Institute of Science, Bangalore -- Gromacs Users mailing list * Please search th

Re: [gmx-users] Strange trjconv error

2013-12-10 Thread rajat desikan
next time... On Tue, Dec 10, 2013 at 8:28 PM, Justin Lemkul wrote: > On Tue, Dec 10, 2013 at 8:55 AM, rajat desikan >wrote: > > > Hi All, > > I have a NPT NAMD trajectory of a membrane-protein that I want to analyze > > in gromacs 4.6.3. (g_density). I used catdcd

Re: [gmx-users] Calculating atom charges for ester

2013-12-13 Thread rajat desikan
gt; http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before > posting! > > * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists > > * For (un)subscribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or > send a m

[gmx-users] LR electrostatics in single point energy calculations

2014-01-15 Thread rajat desikan
was wondering if there is a way to do it in Gromacs? Thanks, -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 13), Dept. of Chemical Engineering, Indian Institute of Science, Bangalore -- Gromacs Users mailing list * Please search the archive at http://www.gromacs.org/Su

Re: [gmx-users] LR electrostatics in single point energy calculations

2014-01-15 Thread rajat desikan
the reciprocal space term in a Ewald summation calculation, right? I want the total potential energy of the protein. How would I go about that? Thanks. On Wed, Jan 15, 2014 at 7:39 PM, Justin Lemkul wrote: > > > On 1/15/14, 7:14 AM, rajat desikan wrote: > >> Hi All, >>

Re: [gmx-users] non-native contatcs

2014-01-15 Thread rajat desikan
e 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 (un)subscribe requests visit > > https://maillist.sys.kth.se/mailman/

Re: [gmx-users] LR electrostatics in single point energy calculations

2014-01-15 Thread rajat desikan
11:57 AM, rajat desikan wrote: > >> Hi Justin, >> >> I meant the pairwise interaction energies and not the total potential >> energy (I >> plan to define a 'interaction energy' by summing up all the individual >> terms). I >> followed your

[gmx-users] g_helixorient help

2014-01-27 Thread rajat desikan
-nxy shows 27 data sets. What do these correspond to? (Helix A has 34 residues). Similarly for bending_A.xvg How do I go about this? Is this the right way to calculate the relative helix axis angle? Thanks, -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 13), Dep

Re: [gmx-users] g_helixorient help

2014-01-30 Thread rajat desikan
Hi All, Any suggestions? Thanks. On Mon, Jan 27, 2014 at 5:01 PM, rajat desikan wrote: > Hi All, > I am trying to calculate the angle between the axes of two alpha helices > (say A and B) in my simulation. I have separate index files for the > residues pertaining to each

Re: [gmx-users] Molecular volume from trajectory

2014-02-04 Thread rajat desikan
macs.org/Support/Mailing_Lists/GMX-Users_List before > posting! > > * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists > > * For (un)subscribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or > send a mail to gmx-users-requ...@

Re: [gmx-users] g_helixorient help

2014-02-07 Thread rajat desikan
inate of 3 points belonging to the second helix. > > # When this point is reached, you can define the vectors describing the > # helices (by substracting coordinate of atom 3 and 1 and atom 6 and 4), > # normalize them (by dividing the vector by their norm) and calulate their >

[gmx-users] strange do_dssp error

2014-02-08 Thread rajat desikan
1000 r-xp 00:00 0 [vsyscall] Aborted (core dumped) -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 13), Dept. of Chemical Engineering, Indian Institute of Science, Bangalore -- Gromacs Users mailing list * Please search the archive at http://www.gromacs.org/Suppo

Re: [gmx-users] strange do_dssp error

2014-02-22 Thread rajat desikan
Update for anyone interested: Installing dssp 2.2.1 solved the above error! I am not sure why... On Sun, Feb 9, 2014 at 11:39 AM, rajat desikan wrote: > Hi All, > I get this error while running do_dssp. The program reads the whole > trajectory but fails to write a scount file. gmxche

[gmx-users] g_potential help

2014-04-21 Thread rajat desikan
. g_potential returns the result for epsilon_r = 1. How can I incorporate this into the result? 2) Default ng =1? Is the number of groups referring to the number of charge groups defined in the topology? Thank you for your time. -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (

Re: [gmx-users] g_potential help

2014-04-21 Thread rajat desikan
g_potential literally? Thanks, On Monday, April 21, 2014, Justin Lemkul wrote: > > > On 4/21/14, 9:58 AM, rajat desikan wrote: > >> Hi All, >> >> I have a membrane-protein-solvent system, and I want the potential across >> the membrane in the direction of the

Re: [gmx-users] g_potential help

2014-04-21 Thread rajat desikan
Thank you! On Tuesday, April 22, 2014, Justin Lemkul wrote: > > > On 4/21/14, 5:11 PM, rajat desikan wrote: > >> Hi Justin, >> >> So different parts of my system in Z-direction should be scaled >> differently, right? On a coarse level, aqueous part with

Re: [gmx-users] Regarding the comparison of two result

2014-05-02 Thread rajat desikan
rs 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 (un)subscribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/

Re: [gmx-users] Regarding the comparison of two result

2014-05-02 Thread rajat desikan
I forgot to mention that the earlier simulations were with version 4.5.4 On Fri, May 2, 2014 at 6:13 PM, rajat desikan wrote: > Hi, > I would suggest caution. I had a DPPC bilayer interacting with organic > molecules (beta naphthol) which are supposed to alter the phase behaviour. >

[gmx-users] vdw radii in g_sas

2014-05-09 Thread rajat desikan
rom ffnonbonded values? I would love to hear your thoughts/suggestions. Thanks, -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 13), Dept. of Chemical Engineering, Indian Institute of Science, Bangalore -- Gromacs Users mailing list * Please search the archive

Re: [gmx-users] vdw radii in g_sas

2014-05-09 Thread rajat desikan
Thanks Justin. I am curious about the value for a phosphorus atom (protein in phospholipid bilayer; g_sas issues a warning). Do you know any reference for experimental values? On Friday, May 9, 2014, Justin Lemkul wrote: > > > On 5/9/14, 12:23 PM, rajat desikan wrote: > >>

Re: [gmx-users] vdw radii in g_sas

2014-05-10 Thread rajat desikan
ntonio > > > On Fri, 9 May 2014, Tsjerk Wassenaar wrote: > > Do mind that the radius for P in PO4 is different from that for P alone. >> >> Cheers, >> >> Tsjerk >> On May 9, 2014 10:53 PM, "Justin Lemkul" wrote: >> >> >>&g

Re: [gmx-users] vdw radii in g_sas

2014-05-12 Thread rajat desikan
Hi All, I am extremely sorry for the blooper in the above mail. I meant to write g_mdmat, but it came out as g_sas! Please give me any heuristic suggestions for choosing the truncation distance, if any. Thanks, On Sat, May 10, 2014 at 11:47 PM, rajat desikan wrote: > Thank you Justin, Tsj

[gmx-users] Citing gromacs tools

2014-05-12 Thread rajat desikan
--- Thank You --- -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 13), Dept. of Chemical Engineering, Indian Institute of Science, Bangalore -- Gromacs Users mailing list * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/GMX-Users

[gmx-users] g_mdmat truncation distance for contacts

2014-05-12 Thread rajat desikan
suggestions about the truncation distance value? Thank you all for your time. Regards, -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 13), Dept. of Chemical Engineering, Indian Institute of Science, Bangalore -- Gromacs Users mailing list * Please search the archi

Re: [gmx-users] Citing gromacs tools

2014-05-13 Thread rajat desikan
Thank you for the clarification, Prof. David. On Tuesday, May 13, 2014, David van der Spoel wrote: > On 2014-05-13 07:52, rajat desikan wrote: > >> Hi All, >> In many papers, the authors cite the main gromacs paper and simply declare >> in the methods section that they u

Re: [gmx-users] Problems with trajectories

2014-05-26 Thread rajat desikan
port/Mailing_Lists > > * For (un)subscribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or > send a mail to gmx-users-requ...@gromacs.org. > -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 13), Dept. of Chemical Engin

Re: [gmx-users] pH simulation

2014-06-12 Thread rajat desikan
se/mailman/listinfo/gromacs.org_gmx-users or > send a mail to gmx-users-requ...@gromacs.org. > -- Rajat Desikan (Ph.D Scholar) Prof. K. Ganapathy Ayappa's Lab (no 13), Dept. of Chemical Engineering, Indian Institute of Science, Bangalore -- Gromacs Users mailing list * Please search the