[gmx-users] Tesla M2075 error...

2012-10-16 Thread Anthony Cruz Balberdi
Hi user: I was able to compile gromacs with GPU support without errors, but when I test it with the benchmark got the following error: (mdrun-gpu -device OpenMM:platform=Cuda,memtest=15,deviceid=0,force-device=no -s topol.tpr -v) Fatal error: The selected GPU (#0, Tesla M2075) is not supported

Re: [gmx-users] Tesla M2075 error...

2012-10-16 Thread Anthony Cruz Balberdi
Thanks! On Tue, Oct 16, 2012 at 10:00 AM, Justin Lemkul jalem...@vt.edu wrote: On 10/16/12 9:58 AM, Anthony Cruz Balberdi wrote: Hi user: I was able to compile gromacs with GPU support without errors, but when I test it with the benchmark got the following error: (mdrun-gpu -device

Re: [gmx-users] tpbconv and tpr file problem...

2012-03-16 Thread Anthony Cruz Balberdi
On Wed, Mar 14, 2012 at 8:42 PM, Mark Abraham mark.abra...@anu.edu.auwrote: On 15/03/2012 5:33 AM, Anthony Cruz Balberdi wrote: Hi Users: I was trying to calculate the energy contribution of an specific ion in my simulation. After extract a given frame from the simulation, I recalculate

Re: [gmx-users] tpbconv and tpr file problem...

2012-03-16 Thread Anthony Cruz Balberdi
Thanks On Fri, Mar 16, 2012 at 10:37 AM, Mark Abraham mark.abra...@anu.edu.auwrote: On 17/03/2012 12:39 AM, Anthony Cruz Balberdi wrote: On Wed, Mar 14, 2012 at 8:42 PM, Mark Abraham mark.abra...@anu.edu.auwrote: On 15/03/2012 5:33 AM, Anthony Cruz Balberdi wrote: Hi Users: I

[gmx-users] tpbconv and tpr file problem...

2012-03-14 Thread Anthony Cruz Balberdi
Hi Users: I was trying to calculate the energy contribution of an specific ion in my simulation. After extract a given frame from the simulation, I recalculate the energies of this frame with mdrun -rerun. Then I used tpbconv and editconf to create a new gro file and a new tpr without the ion. I

Re: [gmx-users] Problem with FE-Cys covalent bond

2012-01-12 Thread Anthony Cruz Balberdi
Hi: Did you add the parameters for the new covalent bond to the correct part of ffbonded.itp? Because, for the GROMOS FF you have to add the parameters for the new bond, angle and dihedral ,created due to specbond, in a certain part of the ffbonded.itp for pdb2gmx be able to use it. I dont know

[gmx-users] Protein encapsulation

2011-12-13 Thread Anthony Cruz Balberdi
Dear user: I am planning to run some simulations of a protein encapsulated using a rigid polymer but I not sure of what approach will be better. I was thinking in using position restraint or freeze groups. Which procedure will not cause problems or artifacts in the simulation? Any other idea on

[gmx-users] Gromacs compilation

2011-08-09 Thread Anthony Cruz Balberdi
regards, Anthony Cruz -- gmx-users mailing listgmx-users@gromacs.org http://lists.gromacs.org/mailman/listinfo/gmx-users Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/Search before posting! Please don't post (un)subscribe requests to the list. Use the www interface

[gmx-users] Gromacs compilation on AMD multicore

2011-07-05 Thread Anthony Cruz Balberdi
Dear Users: We recently received our new computer. This computer have 4 multicore Opteron AMD cpus and I am planning to install GROMAS. Which options I will need to use in order to achieve the best possible performance? Which compiler GNU or Intel? Thank you for all you help. Anthony --

Re: [gmx-users] Gromacs compilation on AMD multicore

2011-07-05 Thread Anthony Cruz Balberdi
to link. Mark On Tue, Jul 5, 2011 at 10:26 AM, Matthew Zwiermczw...@gmail.com wrote: Hi Anthony, The default options are nearly optimal, and the difference between a modern (4.4 or 4.5) GCC On Tue, Jul 5, 2011 at 10:01 AM, Anthony Cruz Balberdi anthony.cr...@upr.edu wrote: Dear

Re: [gmx-users] Parameterization

2010-11-15 Thread Anthony Cruz Balberdi
Dear Yuvraj: There is a protocol to find the charges and force field parameters for new molecules for the AMBER force field. The best way is to try to find the parameters from a publication. If you dont find anything then use RED to find the charges (http://q4md-forcefieldtools.org/RED/). Then

Re: [gmx-users] Salt concentration

2010-09-28 Thread Anthony Cruz Balberdi
15:32, Anthony Cruz Balberdi anthony.cr...@upr.edu wrote: Dear Users: I am interested in perform a simulation of a protein in different salt concentrations. How I can calculate how much Na+ and Cl- ions to include in the simulation to achieve certain concentration? Could someone point me

[gmx-users] Salt concentration

2010-09-27 Thread Anthony Cruz Balberdi
Dear Users: I am interested in perform a simulation of a protein in different salt concentrations. How I can calculate how much Na+ and Cl- ions to include in the simulation to achieve certain concentration? Could someone point me in the right direction? Is there a software to do this type of

Re: [gmx-users] acetonitrile from amber to gromacs

2010-05-19 Thread Anthony Cruz Balberdi
I did it for other solvent. If you have AMBER is very easy to do. Do you have AMBER? On Wed, May 19, 2010 at 12:15 PM, vedat durmaz dur...@zib.de wrote: hi all together, this week i'm trying to do some simulations with acetonitrile (AN) as a solvent and using ffamber99 as force field. on

Re: [gmx-users] Help, Errors while compiling gromacs under Mac OS X 10.5 Leopard

2010-05-11 Thread Anthony Cruz Balberdi
The mac computer is a cluster or just your personal computer? If you will use it to prepare the system and for analysis you could use macport or fink to compile gromacs. Anthony On Tue, May 11, 2010 at 11:13 AM, Emily Curtis emilymariecur...@gmail.com wrote: Dr. Bonner, I am trying to install

Re: [gmx-users] Mac OS X with MKL

2010-05-05 Thread Anthony Cruz Balberdi
google for gromacs intel. Best regards Anthony On Wed, May 5, 2010 at 7:25 PM, Anthony Cruz Balberdi anthony.cr...@upr.edu wrote: Sorry for my bad english... That happens to me but in linux. If you are using mkl = 10 you need to change the way the libraries are called. Search

Re: [gmx-users] Density histogram in Ramachandran plot

2009-11-13 Thread Anthony Cruz Balberdi
Here in the gromacs user contribution: http://www.gromacs.org/index.php?title=Download_%26_Installation/User_contributions/Other_software I use it once. Anthony On Thu, Nov 12, 2009 at 7:49 PM, Mark Abraham mark.abra...@anu.edu.au wrote: ms wrote: Hi, I wonder if there is an easy way I am

Re: [gmx-users] monomers

2009-07-14 Thread Anthony Cruz Balberdi
Other way to do it is to edit the spectbond.dat for serach the atoms that you want to bond. The same way that gromacs made the bond between the HEME and the HIS On Mon, Jul 13, 2009 at 6:27 PM, Jarol E. Molina hamolin...@gmail.comwrote: Hi all I need some monomers get bonds among them, but

Re: [gmx-users] Convert trr into crd (amber format)

2009-07-10 Thread Anthony Cruz Balberdi
I think that you can do it in vmd On Tue, Jul 7, 2009 at 11:18 PM, Ragnarok sdf fabrac...@gmail.com wrote: I came across a tool for making porcupine plots out of my PCA analysis, but first I need to perform the analysis with a program that accepts .cdr (amber traj) file format (the name of

Re: [gmx-users] Problem sasa 3.2.1 vs 3.3.2

2008-09-24 Thread Anthony Cruz
to a developer). Cheers, Tsjerk On Thu, Sep 18, 2008 at 3:39 PM, Anthony Cruz [EMAIL PROTECTED] wrote: Hi users: Recently I run a simulation of a protein in DMSO with GROMACS 3.2.1. I make the analysis with GROMACS 3.3.2 and GROMACS 3.2.1 . When I do the sasa analysis I observe differences

[gmx-users] Problem sasa 3.2.1 vs 3.3.2

2008-09-18 Thread Anthony Cruz
Hi users: Recently I run a simulation of a protein in DMSO with GROMACS 3.2.1. I make the analysis with GROMACS 3.3.2 and GROMACS 3.2.1 . When I do the sasa analysis I observe differences in the sasa values between the two versions. The total sasa seems to be same in the two graphs but the

[gmx-users] LJ question

2008-08-28 Thread Anthony Cruz
Dear Users: I am planing to do some simulations of a protein in acetonitrile using the model of P.J. Gee (Mol. Phys. (2006) 104, 477-483). The use of this model will introduce new atom types and new LJ parameters for those atoms. When I define those atoms in the acetonitrile topology I need to

Re: [gmx-users] LJ question

2008-08-28 Thread Anthony Cruz
Thank you for your rapidly responce David. If I use thr Gromos96 (ff43a1) it will do it? How I check if the force field allows mixing? Cheers, Anthony On Thursday 28 August 2008 01:34:30 pm David van der Spoel wrote: Anthony Cruz wrote: Dear Users: I am planing to do some simulations

[gmx-users] Conformation search!

2008-04-17 Thread Anthony Cruz
Hi User: We have a protein with two domains. This two domains were connected by two linkers of different length. We want to study the different conformation that the protein domains can adopt depending the length of the linkers without loosing the secondary structure feature present. I was

[gmx-users] How constraint structure not conformation

2008-04-16 Thread Anthony Cruz
Hi User: We have a protein with two domains. This two domains were connected by two linkers of different length. We want to study the different conformation that the protein domains can adopt depending the length of the linkers without loosing the secondary structure feature present. I was

[gmx-users] chromophore parameters for Molecular Dynamics

2008-01-11 Thread Anthony Cruz
Hi users: I am working in a new projec and we plan to do some molecular dynamic experiment to an engineered GFP molecule. I have been searching for the parameters for the GFP chromophore without success. Can some one help me? Any reference or parameters?? Best Regards, Anthony

Re: [gmx-users] Continuation diferent machine.

2007-08-08 Thread Anthony Cruz
important for debugging. If you don't know it doesn't apply to you :-) All that matters for you is that 3.3 = 3.2, so it should work fine; the hardware doesn't matter. Cheers, Erik On Aug 8, 2007, at 12:25 AM, Anthony Cruz wrote: Hi Erick, Thank you for you responce. I am sorry but I dont

Re: [gmx-users] Continuation diferent machine.

2007-08-07 Thread Anthony Cruz
on architectures where we use tuned assembly loops. Cheers, Erik On Aug 7, 2007, at 10:57 PM, Anthony Cruz wrote: Hi users: I have made some simulation in one of our workstation. Now I want to extend the simulations few nanoseconds. I can continue the simulations in other machine without

[gmx-users] continuation problem

2007-06-21 Thread Anthony Cruz Balberdi
Hi: I am running a simulation (on GROMACS 3.3.1) were I want to save the coordinates of a group of atoms every steep. I use the nstxtcout and xtc_grps options in my MDP file. The problem is that when I continue the simulation (using tpbconv -f -e -s -until) the first 100 to 500 ps the

Re: [gmx-users] Appropriate tool to get the number of solvent molecules within a cutoff distance around protein molecule

2007-03-19 Thread Anthony Cruz Balberdi
Hi Ozge: You can use a script in VMD to do the work. In VMD you could make various atom selection and use it in the script. You could use something like this: set outfile [open sol_within_prot.dat w]; set nf [molinfo top get numframes] set frame0 [atomselect top protein frame 0] # water

Re: [gmx-users] parameters for nitric oxide (NO)

2007-02-21 Thread Anthony Cruz
Hi Jochen: Did you receive any responce??? I font 2 different parameters for NO. one of 2 sites and other of three sites. I try to build the three sithe model but I can get it to work because I have problems with the third site, a dummy atom. Probably you have more experience with GROMACS than

[gmx-users] Dummy Problem.

2007-02-06 Thread Anthony Cruz
Hi Users: I have a question about dummy atoms. I try to simulate a protein that have a cysteine modified with a NO group. I found a NO model that have 3 sites, one at each atom and other in the center of mass (Biophys. Chem. 98 (2002) 183). [ SNC ] [ atoms ] N N-0.28000 0

[gmx-users] pdb2gmx and his-heme group

2007-01-17 Thread Anthony Cruz Balberdi
Hi user: Today I have been working with a heme protein and I notice that in the topology the parameters that include the His (NE2) and the heme (FE) were not present in the topology (bon type, angle type, etc). Also when I check the topology after grompp (-pp) this file also do not include

[gmx-users] mixing for new LJ parameters

2006-12-20 Thread Anthony Cruz Balberdi
Hi User: I have a little question about the LJ parameters. If I download a molecular topology from the site or build a new molecule from parameters in the literature that have new atom types with new LJ parameters, how the combinations of LJ parameters will be done between this new LJ and the

[gmx-users] LJ question

2006-12-19 Thread Anthony Cruz Balberdi
Hi User: I have a little question about the LJ parameters. If I download a molecular topology from the site that have new atom types with new LJ parameters, I supposed to add an [ atomtypes ] section to the topology that define the new types and the new LJ. The question is I need to add the

[gmx-users] rerun question

2006-10-11 Thread Anthony Cruz Balberdi
HI Users: I want to rerun my system to determine the energy of the protein. What I need to do? If the answer is to set up energygrp_excl I could include all the component of the system except the protein in one group an use this group for the energygrp_excl because my system have 6

[gmx-users] L-J question

2006-06-09 Thread Anthony Cruz
Hi users: I have a little question. I found some L-J parameters for heme iron for the GROMOS87 FF and I want to use it in the GROMOS ff43a1 . The units as appear in the paper [biophys. J. 1995 (69) p810] A(kJ nm^ -12 mol ^-1) 4.30115e-5 and B (kJ nm^ -6 mol ^ -1) 8.886909e-3. I need to make

[gmx-users] Solventbox equilibration

2006-05-22 Thread Anthony Cruz
Hi: I have been trying to made a solvent box of methacrylic acid using parameters from PRODRG. I change it to GROMOS96 parameters and use charges from DFT calculation. I do the energy minimization with out any problem. I run a 2ns MD (NVT) with out any problem too. But when I try to run an MD

Re: [gmx-users] freeze water

2006-05-01 Thread Anthony Cruz
What procedure will be better? Freeze or position restrain? Anthony On Monday 01 May 2006 7:17 am, Anthony Cruz wrote: On Friday 28 April 2006 12:02 pm, David van der Spoel wrote: Anthony Cruz wrote: Hi: I want to make a simulation of a small pepetide in a box of water but I want

[gmx-users] gromacs manual

2006-03-21 Thread Anthony Cruz
Hi: I have been trying to make the manual from cvs and I can make it. If someone have it please could send me a copy ??? Thanks Anthony ___ gmx-users mailing listgmx-users@gromacs.org http://www.gromacs.org/mailman/listinfo/gmx-users Please don't