Brett,
Please do not mail me directly with such questions. I am not your tutor and
I am not involved in the CHARMM-GUI. I forward this mail to the gromacs
user list, as there may be someone who can and is willing to give
suggestions there. But I do also like to note that the CHARMM-GUI is not
Grom
Dear all,
I am a new gromacs user. I want to simulate a box with two charged walls
contain water molecules, but i face to many problems! for example water
molecules go out of box.
Could anyone help me by explain details of wall simulation?
Thanks in advance.
Mahi
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Gromacs Users mailing list
Hi,
The workstation hardware benchmarked in our recent paper [1] is quite
decent. You should also browse the past discussions on the list.
For best performance in a desktop setup a Haswell-E CPU (i7 4960X or 4930)
and a GTX 980/980 Ti is the best bet, for something mid-range I'd go with a
high-cl
Dear Gromacs Experts,
Let's say that for some reasons I don't want to specify the atom group when
g_rms (or other module) prompts me to do so.
So I do not want to see this:
Select group for RMSD calculation
Group 0 ( System) has 38387 elements
Group 1 (Protein) has 3470 e
O'right, I have figured that out myself. Just use text file like data.txt
with two lines:
1
1
and redirect it: g_rms [options] < data.txt
2015-09-17 11:32 GMT+01:00 Dawid das :
> Dear Gromacs Experts,
>
> Let's say that for some reasons I don't want to specify the atom group
> when g_rms (or oth
Hi,
Yes. Further options at
http://www.gromacs.org/Documentation/How-tos/Using_Commands_in_Scripts
Mark
On Thu, Sep 17, 2015 at 1:04 PM Dawid das wrote:
> O'right, I have figured that out myself. Just use text file like data.txt
> with two lines:
> 1
> 1
>
> and redirect it: g_rms [options] <
Hello,
thanks, very simple, changing the .top file worked perfectly.
And I was thinking: How do I change the .gro file, will changing the
.top be enough.
thanks for the advice with the potential. I was thinking to calculate
the potential (voltage) with the the poissons equation and the ion
d
Hello,
thanks, very simple, changing the .top file worked perfectly.
And I was thinking: How do I change the .gro file, will changing the
.top be enough.
thanks for the advice with the potential. I was thinking to calculate
the potential (voltage) with the the poissons equation and the ion
dens
On 9/17/15 2:03 AM, Amali Guruge wrote:
Dear Gromacs users,
I want to do a molecular dynamic simulation for my enzyme-ligand complex.
The enzyme is topoisomerase I. I used the pdb id 1K4T for the simulation
and I need to keep the DNA double strand with the enzyme.
I replaced the 5'-sulfhydryl
On 9/16/15 9:18 PM, Gustavo Avelar Molina wrote:
Hi everyone,
I want to build a new GPU-accelerated desktop PC for MD simulations of
relatively simple protein/carbohydrate systems. No QM-MM simulations is
intended for now. For instance, I have been working with a protein of
approximately 1500
Hello, from my own expierence I can say that
atomic charges calculated with Gaussian are good charges.
2015-09-17 1:37 GMT-03:00 Pallavi Banerjee <
pallavis...@students.iiserpune.ac.in>:
> Thanks Justin. Things are clearer now.
>
> -Pallavi Banerjee
> --
> Gromacs Users mailing list
>
> * Please
Hi Mark,
Thank you for reviewing the log files! I will recompile GROMACS for AVX2_256
SIMD to efficiently use the CPUs.
The number of cores on the node is 16 and each core has two threads. By
default, GROMACS picked 4 threads per simulation. I reran the simulation by
specifying 2 threads per s
Hi,
I have a problem regarding the calculation of interaction energies using
gmx energy and the energygrps parameter in the mdp file. My mdp file
includes the line
energygrps = Ion OW
Whenever I calculate the LJ-SR and Coul.-SR energy terms between OW
and any other energy group, the result is ju
Hi,
On Thu, Sep 17, 2015 at 6:24 PM Zimmerman, Maxwell
wrote:
> Hi Mark,
>
> Thank you for reviewing the log files! I will recompile GROMACS for
> AVX2_256 SIMD to efficiently use the CPUs.
>
> The number of cores on the node is 16 and each core has two threads. By
> default, GROMACS picked 4 th
Hello Gromacs users,
We are running GROMACS molecular dynamics simulations on a cluster with the
following specs: supermicro hardware, sandy bridge and haswell intel Xeons,
4 GB per core, Mellanox 10 GbE (w/RDMA) switching (no IB).
We were thinking of adding GPU's to this system. Does anyone have
Hi,
You're probably running on GPUs, and have missed the note in the .log file
that observes that energy groups are not supported there (it'd be too slow
to run).
If you want such data, then the recommend procedure is to run your
simulation normally, then use gmx mdrun -rerun old-trajectory -nb c
Hi,
This gets discussed a few times per week, including in the last 24 hours.
Please check the archives :-)
Mark
On Thu, Sep 17, 2015 at 7:20 PM Eric Smoll wrote:
> Hello Gromacs users,
>
> We are running GROMACS molecular dynamics simulations on a cluster with the
> following specs: supermicr
Dear all,
I want to use some atoms that are not implemented in gromacs. If i even
make a .gro file, making a topology is a problem. What should i do?
Thanks!
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Gromacs Users mailing list
* Please search the archive at
http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting!
Hi Mark,
I am not sure that there is a problem with the MPI system or job scheduler.
When I run 8 simulations with 2 threads and log onto the node, I can see that
every core is being used equally.
Regards,
-Maxwell
From: gromacs.org_gmx-users-boun...
On 9/17/15 3:08 PM, Maryam Kowsar wrote:
Dear all,
I want to use some atoms that are not implemented in gromacs. If i even
make a .gro file, making a topology is a problem. What should i do?
Derive parameters in a manner consistent with the desired force field and add
all necessary bonded
Thank you.
2015-09-17 12:37 GMT+01:00 Mark Abraham :
> Hi,
>
> Yes. Further options at
> http://www.gromacs.org/Documentation/How-tos/Using_Commands_in_Scripts
>
> Mark
>
> On Thu, Sep 17, 2015 at 1:04 PM Dawid das wrote:
>
> > O'right, I have figured that out myself. Just use text file like dat
Hi,
That doesn't make any sense unless someone else is on your node :-)
Otherwise, maybe there's no pinning actually active? Try mpirun -np 8
mdrun_mpi -multi 8 -ntomp 1 -pin on -gpu_id 01234567 and look at the core
usage. There should be 8 empty cores and no movement between them.
Mark
>
> On
Thaks justin!
I did it several times and it worked. But now when i want to add some
neutral gas or heavy atoms it stops me with the error that the atom is not
defined. I dont know where i make a mistake.
On Friday, September 18, 2015, Justin Lemkul wrote:
>
>
> On 9/17/15 3:08 PM, Maryam Kowsar
Dear Users:
I have a system with many distance restraints, designed to maintain helical
character, e.g.:
[ distance_restraints ]
90 33 1 1 2 2.745541e-01 3.122595e-01 999 1.0
97 57 1 2 2 2.876300e-01 2.892921e-01 999 1.0
114 73 1 3 2 2.704403e-01 2.929642e-01 999 1.0
...
Distance restraints are
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