Re: [gmx-users] Normal Mode Analysis -- Expected Output

2013-04-12 Thread Bryan Roessler
My problem was here:

>nsteps  = 10
which should read
nsteps  = 1

I was under the assumption that the step numbers would correspond to the
number of calculated eigenvectors. All eigenvectors are calculated in step
1.

Thanks,

Bryan


On Thu, Apr 11, 2013 at 12:33 PM, David van der Spoel
wrote:

> On 2013-04-11 17:57, Bryan Roessler wrote:
>
>> Hello,
>>
>> I am running a normal mode analysis on a ~1500AA protein with the
>> following
>> mdp parameters:
>>
>> Log file opened on Tue Apr  9 09:55:00 2013
>> Host: uv1  pid: 128985  nodeid: 0  nnodes:  64
>> Gromacs version:VERSION 4.6.1
>> Precision:  double
>> Memory model:   64 bit
>> MPI library:MPI
>> OpenMP support: disabled
>> GPU support:disabled
>> invsqrt routine:gmx_software_invsqrt(x)
>> CPU acceleration:   AVX_256
>> FFT library:fftw-3.3.2-sse2
>> Large file support: enabled
>> RDTSCP usage:   enabled
>> Built on:   Fri Mar 15 09:20:59 CDT 2013
>> Built by:   asndcy@uv [CMAKE]
>> Build OS/arch:  Linux 3.0.58-0.6.6-default x86_64
>> Build CPU vendor:   GenuineIntel
>> Build CPU brand:Intel(R) Xeon(R) CPU E5-2667 0 @ 2.90GHz
>> Build CPU family:   6   Model: 45   Stepping: 7
>> Build CPU features: aes apic avx clfsh cmov cx8 cx16 htt lahf_lm mmx msr
>> nonstop_tsc pcid pclmuldq pdcm pdpe1gb popcnt pse rdtscp sse2 sse3 sse4.1
>> sse4.2 ssse3 tdt x2apic
>> C compiler: /opt/sgi/mpt/mpt-2.07/bin/**mpicc GNU gcc (GCC) 4.7.2
>> C compiler flags:   -mavx   -Wextra -Wno-missing-field-**initializers
>> -Wno-sign-compare -Wall -Wno-unused -Wunused-value -Wno-unknown-pragmas
>> -fomit-frame-pointer -funroll-all-loops -fexcess-precision=fast  -O3
>> -DNDEBUG
>>
>>
>>   :-)  G  R  O  M  A  C  S  (-:
>>
>> Good gRace! Old Maple Actually Chews Slate
>>
>>  :-)  VERSION 4.6.1  (-:
>>
>>  Contributions from Mark Abraham, Emile Apol, Rossen Apostolov,
>> Herman J.C. Berendsen, Aldert van Buuren, Pär Bjelkmar,
>>
>>   Rudi van Drunen, Anton Feenstra, Gerrit Groenhof, Christoph
>> Junghans,
>>  Peter Kasson, Carsten Kutzner, Per Larsson, Pieter Meulenhoff,
>> Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
>>  Michael Shirts, Alfons Sijbers, Peter Tieleman,
>>
>> Berk Hess, David van der Spoel, and Erik Lindahl.
>>
>> Copyright (c) 1991-2000, University of Groningen, The Netherlands.
>>   Copyright (c) 2001-2012,2013, The GROMACS development team at
>>  Uppsala University & The Royal Institute of Technology, Sweden.
>>  check out http://www.gromacs.org for more information.
>>
>>   This program is free software; you can redistribute it and/or
>> modify it under the terms of the GNU Lesser General Public License
>>  as published by the Free Software Foundation; either version 2.1
>>   of the License, or (at your option) any later version.
>>
>>  :-)  /opt/asn/apps/gromacs_4.6.1/**bin/mdrun_mpi_d (double
>> precision)  (-:
>>
>>
>>  PLEASE READ AND CITE THE FOLLOWING REFERENCE 
>> B. Hess and C. Kutzner and D. van der Spoel and E. Lindahl
>> GROMACS 4: Algorithms for highly efficient, load-balanced, and scalable
>> molecular simulation
>> J. Chem. Theory Comput. 4 (2008) pp. 435-447
>>   --- Thank You ---  
>>
>>
>>  PLEASE READ AND CITE THE FOLLOWING REFERENCE 
>> D. van der Spoel, E. Lindahl, B. Hess, G. Groenhof, A. E. Mark and H. J.
>> C.
>> Berendsen
>> GROMACS: Fast, Flexible and Free
>> J. Comp. Chem. 26 (2005) pp. 1701-1719
>>   --- Thank You ---  
>>
>>
>>  PLEASE READ AND CITE THE FOLLOWING REFERENCE 
>> E. Lindahl and B. Hess and D. van der Spoel
>> GROMACS 3.0: A package for molecular simulation and trajectory analysis
>> J. Mol. Mod. 7 (2001) pp. 306-317
>>   --- Thank You ---  
>>
>>
>>  PLEASE READ AND CITE THE FOLLOWING REFERENCE 
>> H. J. C. Berendsen, D. van der Spoel and R. van Drunen
>> GROMACS: A message-passing parallel molecular dynamics implementation
>> Comp. Phys. Comm. 91 (1995) pp. 43-56
>>   --- Thank You ---  
>>
>>
>> Changing rlist from 1.47 to 1.4 for non-bonded 4x4 atom kernels
>>
>> Input Parameters:
>> integrator   = nm
>> nsteps   = 10
>> init-step= 0
>> cutoff-scheme= Verlet
>> ns_type  = Grid
>> nstlist  = 10
>> ndelta   = 2
>> nstcomm  = 100
>> comm-mode= Linear
>> nstlog   = 1000
>> nstxout  = 500
>> nstvout  = 500
>> nstfout  = 500
>> nstcalcenergy= 100
>> nstenergy= 500
>> nstxtcout= 0
>> init-t 

Re: [gmx-users] switching and shifting in GMX 4.6 on GPUs

2013-04-12 Thread Jesper Sørensen
Hi Berk and others,

Sorry it has been a long time since this issue was posted, but I got 
side-tracked from this issue with other projects. And I want to make sure I 
understand this correctly before venturing into more simulations. So this gets 
a little long winded, but I hope you will help me figure this out.

So following up on the last emails perhaps the nomenclature is not consistent 
among the programs - which I shoudn't expect it to be either, so that is okay.
I know this is the GMX list, but for clarity I will just describe what NAMD 
does, because it relates to how to run lipids in GMX (particularly with the 
GPU).
NAMD:
* When the switching function is on: "a smooth switching function will be used 
to truncate the van der Waals potential energy smoothly at the cutoff 
distance". 
* A new "vdwForceSwitching" method is available as of version 2.7 - which 
applies a force-based switching function to the VDW term - similar I guess to 
how CHARMM does it.
GMX:
* The switch nomenclature is similar/identical to that in NAMD, in that the 
potential "energy" is switched off.
* The "shift" method in Gromacs is equivalent to the  "vdwForceSwitching" 
method in NAMD.

And from what Berk was saying earlier and I heard this from Prof. Lindahl 
during the GPU webinar the other day too, the "shift" method is the only 
appropriate option and switching should not be used. It seems that this option 
is the one used for lipids in NAMD and CHARMM also, so that is great.

Now regarding the GPU's you have to run with Verlet groups and here is where it 
get confusing because looking at the comparison table on the website 
"http://www.gromacs.org/Documentation/Cut-off_schemes"; ( I've extracted the 
important features of this table below).
The switched interactions are not available using the Verlet groups and that is 
okay since that shouldn't be used anyways. But, the shifted interactions are 
"available", but only for the "energy" - now did we not just agree that when it 
is the energy that it should be called a "switched interaction"? Am I missing 
something here?

Non-bonded interaction feature  group   Verlet
exact cut-off   shift/switch
X
cut-off X   
X
shifted interactionsforce+energyenergy
switched interactions   X

When I asked Prof. Lindahl during the excellent GPU webinar the other day, he 
said that switching was implemented and that is sort of what this table says 
too, but when we try to run a simulation using either switch or shift on the 
GPU we get the following error:
"With Verlet lists only cut-off LJ interactions are supported"

Now I can switch to an exact cut-off method at the cost of making the potential 
abruptly change to zero at the cut-off - minimizing the abruptness can be 
achieved by extending the cut-off, but then for the lipids CHARMM, MARTINI, and 
others, the cut-off seems to be an integral part of the force field development 
and changing it could prove problematic. So this leaves me to think that lipids 
simulations shouldn't be run on the GPU as it is currently, at least not 
without extensive testing.

I'd appreciate any comments to all this rambling that can help clarify this for 
me...

Thanks,
Jesper





On Jan 25, 2013, at 12:29 AM, Berk Hess  wrote:

> 
> Hi,
> 
> The nomenclature is confusing here.
> I don't recall the details of the switching in CHARMM.
> But switch in Gromacs refers to switching the potential.
> Shift in Gromacs refers to switching the force and thereby shifting the 
> potential.
> 
> A switch on the force only (thus "shift" in Gromacs) can usually be matched 
> pretty
> well by a plain cut-off with shifted potential by choosing the cut-off such 
> that either
> the LJ potential matches the potential over the non-switched area or the 
> total LJ potential
> energy matches for the system of interest. I expect these two cut-offs to be 
> very similar.
> 
> Cheers,
> 
> Berk
> 
> 
>> Subject: Re: [gmx-users] switching and shifting in GMX 4.6 on GPUs
>> From: jesoren...@ucsd.edu
>> Date: Thu, 24 Jan 2013 14:20:09 -0800
>> To: gmx-users@gromacs.org
>> 
>> Hi Berk,
>> 
>> I am running membrane simulations using both the CHARMM36 and MARTINI v. 2.1 
>> parameters.
>> So both those cut-off treatments are important to me, but if there are ways 
>> around it I'd be happy to explore them to be able to use the GPUs. The place 
>> it would be most effective would probably be for the all-atom simulations, 
>> as the number of particles is much higher in general, so switching would be 
>> the most important at this stage.
>> 
>> On a similar note the switching done in gromacs is by the energy - correct? 
>> This has been mentioned as an issue for the CHARMM36 lipid parameters as it 
>> is the forces that are "normally" switche

Re: [gmx-users] Re: thermal conductivity,specific heat,enthalpy

2013-04-12 Thread David van der Spoel

On 2013-04-11 22:20, Ahmet yıldırım wrote:

could anybody help me please?

Check http://pubs.acs.org/doi/abs/10.1021/ct200731v



2013/4/11 Ahmet yıldırım 


Dear users,

I calculated diffusion constant of a substance using g_msd tool.  I also
want to calculate thermal conductivity its. By the way,I did npt simulation.

Diffusion constant=alpha
Thermal conductivity=k
specific heat=Cp
density=d
alpha=k/(d.Cp)
and
k=alpha.d.Cp
I need d and Cp to calculate k.

1.) To calculate Cp:
Prof. Spoel:From
http://www.mail-archive.com/gmx-users@gromacs.org/msg37580.html

cP = ( - ^2)/kB T^2 (NPT sim)

The .edr file gives average enthalpy . According to above formula, I
need both H and . How can I get H (not average)?
2.) .edr file:
   1  LJ-(SR)  2  LJ-(LR)  3  Coulomb-(SR) 4
Coul.-recip.
   5  Potential6  Kinetic-En.  7  Total-Energy 8
Temperature
   9  Pressure10  Box-X   11  Box-Y   12
Box-Z
  13  Volume  14  Density 15  pV  16
Enthalpy
  17  Vir-XX  18  Vir-XY  19  Vir-XZ  20
Vir-YX
  21  Vir-YY  22  Vir-YZ  23  Vir-ZX  24
Vir-ZY
  25  Vir-ZZ  26  Pres-XX 27  Pres-XY 28
Pres-XZ
  29  Pres-YX 30  Pres-YY 31  Pres-YZ 32
Pres-ZX
  33  Pres-ZY 34  Pres-ZZ 35  #Surf*SurfTen   36
Mu-X
  37  Mu-Y38  Mu-Z39  T-System40
Lamb-System
Firstly I calculated Entalphy (16)
Afterward I calculated both Etot (7) and pV (15)
Enthalpy=Etot+pV
Unfortunately, I get "Enthalpy isnt equals to Etot+pV". Why?


--
Ahmet Yıldırım








--
David van der Spoel, Ph.D., Professor of Biology
Dept. of Cell & Molec. Biol., Uppsala University.
Box 596, 75124 Uppsala, Sweden. Phone:  +46184714205.
sp...@xray.bmc.uu.sehttp://folding.bmc.uu.se
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Re: [gmx-users] Simulation of the HEM-containing proteins

2013-04-12 Thread James Starlight
also I found such parameters in the native charm format (.prm)
could you provide me with some script for conversion of tpr to itp? I could
do such topology for cytochrome and add it to the contribution :)


James

2013/4/12 James Starlight 

> I forgot to point out that when I made topology for cytochrome-HEME
> complex ( assuming one cysteine covalently bonded to the FE ) again I've
> forced with the lack of charmm parameters for such cysteine-HEME
> interactions ( I've only found it for His coordinating bond).
>
> ERROR 1 [file topol.top, line 12409]:
>   No default Bond types
>
>
> ERROR 2 [file topol.top, line 40454]:
>   No default U-B types
>
>
> ERROR 3 [file topol.top, line 42130]:
>   No default U-B types
>
>
> ERROR 4 [file topol.top, line 42131]:
>   No default U-B types
>
>
> ERROR 5 [file topol.top, line 42132]:
>   No default U-B types
>
>
> ERROR 6 [file topol.top, line 42133]:
>   No default U-B types
>
>
> ERROR 7 [file topol.top, line 56994]:
>
>   No default Proper Dih. types
>
>
> ERROR 8 [file topol.top, line 56995]:
>
>   No default Proper Dih. types
>
>
> ERROR 9 [file topol.top, line 56996]:
>
>   No default Proper Dih. types
>
>
> ERROR 10 [file topol.top, line 56997]:
>
>   No default Proper Dih. types
>
>
> ERROR 11 [file topol.top, line 56998]:
>
>   No default Proper Dih. types
>
>
> ERROR 12 [file topol.top, line 56999]:
>
>   No default Proper Dih. types
>
>
> ERROR 13 [file topol.top, line 57000]:
>
>   No default Proper Dih. types
>
> Also I've looked the literature for such parameters suitable for charm but
> didnt find anything.
> Does anybody here tried to simulate cytochrome ?
>
>
> James
>
>
> 2013/4/12 James Starlight 
>
>> by the way also I've tried to make model of cytochrome p450 in charmm. In
>> that case heme have only one coordinate bond with the side chain of
>> cysteine (not 2 covalent bonds with cysteines as in the cytochrome-C). So
>> as I understand I should include model of heme as the diffusion ligand ( as
>> the separate itp file in the topology) should'n it ?
>> How I can define coordinate bond of the heme's FE atom with the cysteine
>> side chain (in the pdb2gmx I found that such can be done only for
>> histidines)?
>>
>> James
>>
>> 2013/4/12 Mark Abraham 
>>
>>> Look in the literature...
>>>
>>>
>>> On Thu, Apr 11, 2013 at 2:12 PM, James Starlight >> >wrote:
>>>
>>> > During the past few days I've tried to make parametrization of any
>>> > heme-containing cythochromes and always failed with the huge errors
>>> about
>>> > missing parameters. Could someone provide me with such params (i
>>> suppose it
>>> > should be added to thebonded/non-bonded.itps of the force field
>>> besides the
>>> > rtps) for any ful-atomic force field? Finally I've not found in mailing
>>> > list any possible sollution of the same problems.
>>> >
>>> >
>>> > James
>>> >
>>> > 2013/4/4 James Starlight 
>>> >
>>> > > It was strange for me the big number of such errors :)
>>> > > May the construction of new scheme for the hydrogens  in the .hdb
>>> file
>>> > > partly solve my problem ? ( as I've mentioned previously i had
>>> mismatch
>>> > in
>>> > > 2 hydrogens ( in comparison to the NMR-like structure).
>>> > > Should also HEME be added in the residuetype.dat as the part of the
>>> > > protein?
>>> > >
>>> > > Finally I'll be thankful to everyone who could provide me with the
>>> any
>>> > > cytochrome properly parametrized in charmm :)
>>> > >
>>> > > James
>>> > >
>>> > >
>>> > > 2013/4/3 Justin Lemkul 
>>> > >
>>> > >> On Wed, Apr 3, 2013 at 10:27 AM, James Starlight <
>>> > jmsstarli...@gmail.com
>>> > >> >wrote:
>>> > >>
>>> > >> > I've successfully parametrize cytochrome-HEME complex by means
>>> pdb2gmx
>>> > >> but
>>> > >> > after processing that structure to grompp I've obtained errors
>>> like
>>> > >> >
>>> > >> > ERROR 1 [file topol.top, line 2106]:
>>> > >> >   No default Bond types
>>> > >> >
>>> > >> >
>>> > >> > ERROR 2 [file topol.top, line 2144]:
>>> > >> >   No default Bond types
>>> > >> >
>>> > >> >
>>> > >> > ERROR 3 [file topol.top, line 3153]:
>>> > >> >   No default Bond types
>>> > >> >
>>> > >> >
>>> > >> > ERROR 4 [file topol.top, line 8725]:
>>> > >> >   No default U-B types
>>> > >> >
>>> > >> >
>>> > >> > ERROR 5 [file topol.top, line 8792]:
>>> > >> >   No default U-B types
>>> > >> >
>>> > >> >
>>> > >> > ERROR 6 [file topol.top, line 10624]:
>>> > >> >   No default U-B types
>>> > >> >
>>> > >> >
>>> > >> > ERROR 7 [file topol.top, line 10625]:
>>> > >> >   No default U-B types
>>> > >> >
>>> > >> >
>>> > >> > ERROR 8 [file topol.top, line 11382]:
>>> > >> >   No default U-B types
>>> > >> >
>>> > >> >
>>> > >> > ERROR 9 [file topol.top, line 11383]:
>>> > >> >   No default U-B types
>>> > >> >
>>> > >> >
>>> > >> > ERROR 10 [file topol.top, line 11384]:
>>> > >> >   No default U-B types
>>> > >> >
>>> > >> >
>>> > >> > ERROR 11 [file topol.top, line 11385]:
>>> > >> >   No default U-B types
>>> > >> >
>>> > >> >
>>> > >> > ERROR 12 [file 

Re: [gmx-users] Re: cygwin_mpi_gmx installation

2013-04-12 Thread Szilárd Páll
On Fri, Apr 12, 2013 at 3:45 PM, 라지브간디  wrote:
> Thanks for your answers. I have uninstalled the mpi, have also reinstalled 
> the CUDA and got the same issue. As you have mentioned before I noticed that 
> it struggle to detect the CUDA.

Do you mean that you reconfigured without MPI and with CUDA? You don't
need to uninstall anything to enable/disable configuration options,
just clean your build directory and rerun CMake in it.

>
>
> Can cygwin recognize the CUDA installed in win 7? if so, how do i link them ?

Good question, I've no idea whether it can as I myself have never
built GROMACS with CUDA on cygwin neither have I heard of anyone else
do that. What I can safely state is that the native Win builds with
non-cygwin CMake and MSVC as a compiler do work with with a variety of
generators: nmake, ninja, and VS.

However, it would be very useful to know whether/how it is possible to
detect CUDA with CMake a build GROMACS with GPU acceleration on
cygwin. Perhaps someone else on the list with more cygwin experience
could help out with tips or even try to build with CUDA.

>
>
> The default installation path of CUDA in win 7 could be C:\Program 
> Files\NVIDIA GPU Computing Toolkit\CUDA
>
>
> If I am correct, it should be like
>
>
> cmake .. -DGMX_GPU=ON -DCUDA_TOOLKIT_ROOT_DIR=C:\Program Files\NVIDIA GPU 
> Computing Toolkit\CUDA

The whitespaces will need special treatment, AFAIR putting quotes
around the path (or simply copying the directory to C:\CUDA) should
work. Alternatively, you could try to put nvcc in your path, than
CMake should be able to do the path handling magic.

>
>
> Kindly give me your suggestion. Thanks in advance.
>
>
> Subject: Re: [gmx-users] cygwin_mpi_gmx installation
> To: Discussion list for GROMACS users 
> Message-ID:
> 
> Content-Type: text/plain; charset=UTF-8
>
> Indeed it's strange. In fact, it seems that CUDA detection did not
> even run, there should be a message whether it found the toolkit or
> not just before the "Enabling native GPU acceleration" - and the
> enabling should not even happen without CUDA detected.
>
> Unrelated, but do you really need MPI with cygwin? Unless you are
> planning to run on multiple Windows machines, the default thread-MPI
> parallelization is enough to use multiple cores!
>
> Cheers,
> --
> Szil��rd
>
>
> On Fri, Apr 12, 2013 at 1:04 PM, Mark Abraham  
> wrote:
>> That looks really strange. CMake claims to detect CUDA but the right
>> variables are not set.
>>
>> 1) Can you reproduce this in a clean build directory?
>> 2) If so, what CUDA is present?
>>
>> Mark
>
> --
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Re: [gmx-users] install gromacs 4.6.1 on 64bit Windows 7 cygwin

2013-04-12 Thread Mark Abraham
On Fri, Apr 12, 2013 at 5:53 PM, Hua Lu  wrote:

> Hi!
> I got the following error message while compiling gromacs using a complete
> installation of Cygwin on 64bit windows 7. Any idea what the problem is?
>

Yes, you can't read those files. We can't know why. You wrote them as a
different user, or with different permissions, or something.

Mark

This is what I have used to install as detailed on the gromacs website:
>
> cd gromacs-4.6.1
> mkdir build
> cd build, cmake .. -DGMX_BUILD_OWN_FFTW=ON
> make
>
> the error occur at the last step 'make'
>
>
> Thanks, Hua
>
> ..
> Scanning dependencies of target gmx
> [  0%] Building C object src/gmxlib/CMakeFiles/gmx.dir/3dview.c.o
> /cygdrive/d/gromacs-4.6.1/src/gmxlib/3dview.c:39:20: fatal error:
> /cygdrive/d/gromacs-4.6.1/build/src/config.h: Permission denied
> compilation terminated.
> src/gmxlib/CMakeFiles/gmx.dir/build.make:57: recipe for target
> `src/gmxlib/CMakeFiles/gmx.dir/3dview.c.o' failed
> make[2]: *** [src/gmxlib/CMakeFiles/gmx.dir/3dview.c.o] Error 1
> CMakeFiles/Makefile2:1238: recipe for target
> `src/gmxlib/CMakeFiles/gmx.dir/all' failed
> make[1]: *** [src/gmxlib/CMakeFiles/gmx.dir/all] Error 2
> Makefile:146: recipe for target `all' failed
> make: *** [all] Error 2
>
>
> 
> University of Greenwich, a charity and company limited by guarantee,
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Re: [gmx-users] Dihedral angle PCA

2013-04-12 Thread baptista

On Fri, 12 Apr 2013, Thomas Evangelidis wrote:


On 12 April 2013 07:51, anu chandra  wrote:


Hi David,

Thanks for the reply. I have not tried yet. Since I didn’t find query about
the dihedral PCA in the mail list, I thought of confirm about the steps
mentioned in the web site.


Regarding the use of dihedral PCA, the protein with which I am working
behave differently from others. From literature, this protein shows minimal
backbone conformational changes during ligand binding and presumed that
there is high degree of side-chain conformational changes during binding to
ligand. This made me to think about dihedral PCA for get some information
about the ligand binding. What is your opinion in this regard?



Why not Cartesian PCA restricted to the protein backbone ? dPCA is
preferred in cases of peptides or intrinsically disordered proteins.


Even for very flexible systems, I would say that your choice between dPCA
and cPCA should depend on what you want, since your similarity metric
should match as close as possible the property you want to measure.

Since the underlying conformational spaces of dPCA and cPCA are generally 
quite distorted relative to each other, they can give quite different 
distances between conformations. For example, you can have two conformers 
that look very different in 3D space due to a series of very small 
cumulative dihedral differences, meaning that they are very distant in 
cPCA space but very close in dPCA space. Conversely, you can have two 
conformers that look very similar in 3D space due to a few very different 
dihedrals which compensate each other, meaning that they are very close in 
cPCA space but very distant in dPCA space.


So, if you want to do a detailed analysis of conformational kinetics, dPCA
is probably a good choice, because it better retains the kinetic
contiguity of torsional states. But if you are interested in molecular
recognition (ligand-receptor interactions, etc), you should probably
choose cPCA, because it better maps the overall 3D shape (assuming you can
devise a good reference structure for fit). Anyway, you have to think
about your problem and decide what better suits it.

You can see some examples and a discussion of these issues (including
using other metrics) in http://dx.doi.org/10.1021/jp902991u.

There is a very simple test you can do (check the paper): take all pairs
of simulated conformations and compute their distance in dPCA space and in
cPCA space (using all dimensions, not just the selected PCs), and then
make a scatter plot of one against the other. If the two distances are
poorly correlated, dPCA and cPCA can give quite different results.

Best,
Antonio





Is there any other sort of analyses that can help me to quantify such
side-chain conformational changes and also to locate the regions in
protein, which have  high degree of side-chain conformational changes
during ligand binding?

Waiting for your valuable reply.

Thanks and regards
Anu




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--
Antonio M. Baptista
Instituto de Tecnologia Quimica e Biologica, Universidade Nova de Lisboa
Av. da Republica - EAN, 2780-157 Oeiras, Portugal
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[gmx-users] install gromacs 4.6.1 on 64bit Windows 7 cygwin

2013-04-12 Thread Hua Lu
Hi!
I got the following error message while compiling gromacs using a complete 
installation of Cygwin on 64bit windows 7. Any idea what the problem is?
This is what I have used to install as detailed on the gromacs website:

cd gromacs-4.6.1
mkdir build
cd build, cmake .. -DGMX_BUILD_OWN_FFTW=ON
make

the error occur at the last step 'make'


Thanks, Hua

..
Scanning dependencies of target gmx
[  0%] Building C object src/gmxlib/CMakeFiles/gmx.dir/3dview.c.o
/cygdrive/d/gromacs-4.6.1/src/gmxlib/3dview.c:39:20: fatal error: 
/cygdrive/d/gromacs-4.6.1/build/src/config.h: Permission denied
compilation terminated.
src/gmxlib/CMakeFiles/gmx.dir/build.make:57: recipe for target 
`src/gmxlib/CMakeFiles/gmx.dir/3dview.c.o' failed
make[2]: *** [src/gmxlib/CMakeFiles/gmx.dir/3dview.c.o] Error 1
CMakeFiles/Makefile2:1238: recipe for target 
`src/gmxlib/CMakeFiles/gmx.dir/all' failed
make[1]: *** [src/gmxlib/CMakeFiles/gmx.dir/all] Error 2
Makefile:146: recipe for target `all' failed
make: *** [all] Error 2



University of Greenwich, a charity and company limited by guarantee,
registered in England (reg. no. 986729). Registered office:
Old Royal Naval College, Park Row, Greenwich, London SE10 9LS.
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[gmx-users] Re: cygwin_mpi_gmx installation

2013-04-12 Thread 라지브간디
Thanks for your answers. I have uninstalled the mpi, have also reinstalled the 
CUDA and got the same issue. As you have mentioned before I noticed that it 
struggle to detect the CUDA.


Can cygwin recognize the CUDA installed in win 7? if so, how do i link them ?


The default installation path of CUDA in win 7 could be C:\Program Files\NVIDIA 
GPU Computing Toolkit\CUDA


If I am correct, it should be like 


cmake .. -DGMX_GPU=ON -DCUDA_TOOLKIT_ROOT_DIR=C:\Program Files\NVIDIA GPU 
Computing Toolkit\CUDA


Kindly give me your suggestion. Thanks in advance.


Subject: Re: [gmx-users] cygwin_mpi_gmx installation 
To: Discussion list for GROMACS users  
Message-ID: 
 
Content-Type: text/plain; charset=UTF-8 

Indeed it's strange. In fact, it seems that CUDA detection did not 
even run, there should be a message whether it found the toolkit or 
not just before the "Enabling native GPU acceleration" - and the 
enabling should not even happen without CUDA detected. 

Unrelated, but do you really need MPI with cygwin? Unless you are 
planning to run on multiple Windows machines, the default thread-MPI 
parallelization is enough to use multiple cores! 

Cheers, 
-- 
Szil��rd 


On Fri, Apr 12, 2013 at 1:04 PM, Mark Abraham  wrote: 
> That looks really strange. CMake claims to detect CUDA but the right 
> variables are not set. 
> 
> 1) Can you reproduce this in a clean build directory? 
> 2) If so, what CUDA is present? 
> 
> Mark 
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[gmx-users] lysine side chain shrinking

2013-04-12 Thread tarak karmakar
Dear All,


During a simulation of a protein with a ligand, I see the -NH3 of the
lysine side chain near the ligand is getting squeezed for a very short
time; N-H bonds are getting contracted and the angle are no longer within
tetrahedral normal http://lists.gromacs.org/pipermail/gmx-users/2010-November/056094.html] in
the mailing list but found little helpful. For my case the simulation does
not give me any warning. Please suggest me if there is any problem with my
simulation protocol.


The '.mdp' file is given as follows

integrator  = md
tinit   = 0
dt  = 0.001
nsteps  = 500
nstcomm = 1
comm_grps   = system
comm_mode   =linear

; 7.3.8 Output Control
nstxout = 5000
nstvout = 5000
nstfout = 5000
nstlog  = 2000
nstenergy   = 2000
nstxtcout   = 2000
xtc_precision   = 2000
xtc_grps= System
energygrps  = System

; 7.3.9 Neighbor Searching
nstlist = 10
ns_type = grid
pbc = xyz
rlist   = 1.4

; 7.3.10 Electrostatics
coulombtype = PME
rcoulomb= 1.4

; 7.3.11 VdW
vdwtype = cut-off
rvdw= 1.4
DispCorr= EnerPres

; 7.3.13 Ewald
fourierspacing  = 0.14
pme_order   = 4
ewald_rtol  = 1e-5

; 7.3.14 Temperature Coupling
tcoupl  = nose-hoover
tc_grps = system
tau_t   = 1.0
ref_t   = 300

; 7.3.15 Pressure Coupling
pcoupl  = parrinello-rahman
pcoupltype  = isotropic
tau_p   = 1.0
compressibility = 4.5e-5
ref_p   = 1.0

gen_vel = yes
gen_temp= 300
gen_seed= 113969

; 7.3.18 Bonds
constraints = h-bonds
constraint_algorithm= LINCS
continuation= yes
lincs_order = 4
lincs_iter  = 1
lincs_warnangle = 30


Thanks,
Tarak
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[gmx-users] Fwd: [Fwd: QM MM modification]

2013-04-12 Thread Mark Abraham
Hi Natalia,

I am not aware whether the QM/MM implementation in GROMACS works in 4.6,
nor with which Gaussian version was intended to work in the past. Perhaps
Gerrit Groenhof or someone on gmx-users can update us here?

I'm not sure what "diff file" you are seeking, either. Can you elaborate
please?

Mark

-- Forwarded message --
From: 
Date: Fri, Apr 12, 2013 at 1:53 PM
Subject: [Fwd: QM MM modification]
To: mark.abra...@scilifelab.se


Good afternoon! My name is Natallia Kulik and I am working in Czech
Academy of Sciences on the project of simulation oh substrate-enzyme
interaction of hexosaminidases.
I want to use Gromacs 4.6 with QM implementation (Gaussian 09) for my
calculation. However unfortunately we can't correctly change gaussian
file. Could you, please, send us diff-file from the original version of
gaussian (for gaussian 09 or 03)?

Thank you very much, Natallia
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Re: [gmx-users] pbc problem

2013-04-12 Thread Justin Lemkul
On Fri, Apr 12, 2013 at 7:48 AM, Kieu Thu Nguyen wrote:

> Dear All,
>
> I made a POPC bilayer and carried out embedding a protein into this
> membrane. But the fatal error has appeared :
> Fatal error:
> Something is wrong with your membrane. Max and min z values are 12.342000
> and 0.016000. Maybe your membrane is not centered in the box, but located
> at the box edge in the z-direction, so that one membrane is distributed
> over two periodic box images. Another possibility is that your water layer
> is not thick enough.
>
> I think my bilayer stay at between two periodic images. What should i do to
> put it in corrected position ?
>
>
It should be a very simple matter of visualization. Use editconf -center to
place the membrane wherever you want within the unit cell. You can remove
the uncertainty ("I think" is weak compared to "I know") by looking at the
box vectors and then numerically determining the center of the membrane
with g_traj. That should provide you with all the information you need to
determine what's going on.

-Justin

-- 



Justin A. Lemkul, Ph.D.
Research Scientist
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540)
231-9080http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin


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Re: [gmx-users] Simulation of the HEM-containing proteins

2013-04-12 Thread James Starlight
I forgot to point out that when I made topology for cytochrome-HEME complex
( assuming one cysteine covalently bonded to the FE ) again I've forced
with the lack of charmm parameters for such cysteine-HEME interactions (
I've only found it for His coordinating bond).

ERROR 1 [file topol.top, line 12409]:
  No default Bond types


ERROR 2 [file topol.top, line 40454]:
  No default U-B types


ERROR 3 [file topol.top, line 42130]:
  No default U-B types


ERROR 4 [file topol.top, line 42131]:
  No default U-B types


ERROR 5 [file topol.top, line 42132]:
  No default U-B types


ERROR 6 [file topol.top, line 42133]:
  No default U-B types


ERROR 7 [file topol.top, line 56994]:
  No default Proper Dih. types


ERROR 8 [file topol.top, line 56995]:
  No default Proper Dih. types


ERROR 9 [file topol.top, line 56996]:
  No default Proper Dih. types


ERROR 10 [file topol.top, line 56997]:
  No default Proper Dih. types


ERROR 11 [file topol.top, line 56998]:
  No default Proper Dih. types


ERROR 12 [file topol.top, line 56999]:
  No default Proper Dih. types


ERROR 13 [file topol.top, line 57000]:
  No default Proper Dih. types

Also I've looked the literature for such parameters suitable for charm but
didnt find anything.
Does anybody here tried to simulate cytochrome ?


James

2013/4/12 James Starlight 

> by the way also I've tried to make model of cytochrome p450 in charmm. In
> that case heme have only one coordinate bond with the side chain of
> cysteine (not 2 covalent bonds with cysteines as in the cytochrome-C). So
> as I understand I should include model of heme as the diffusion ligand ( as
> the separate itp file in the topology) should'n it ?
> How I can define coordinate bond of the heme's FE atom with the cysteine
> side chain (in the pdb2gmx I found that such can be done only for
> histidines)?
>
> James
>
> 2013/4/12 Mark Abraham 
>
>> Look in the literature...
>>
>>
>> On Thu, Apr 11, 2013 at 2:12 PM, James Starlight > >wrote:
>>
>> > During the past few days I've tried to make parametrization of any
>> > heme-containing cythochromes and always failed with the huge errors
>> about
>> > missing parameters. Could someone provide me with such params (i
>> suppose it
>> > should be added to thebonded/non-bonded.itps of the force field besides
>> the
>> > rtps) for any ful-atomic force field? Finally I've not found in mailing
>> > list any possible sollution of the same problems.
>> >
>> >
>> > James
>> >
>> > 2013/4/4 James Starlight 
>> >
>> > > It was strange for me the big number of such errors :)
>> > > May the construction of new scheme for the hydrogens  in the .hdb file
>> > > partly solve my problem ? ( as I've mentioned previously i had
>> mismatch
>> > in
>> > > 2 hydrogens ( in comparison to the NMR-like structure).
>> > > Should also HEME be added in the residuetype.dat as the part of the
>> > > protein?
>> > >
>> > > Finally I'll be thankful to everyone who could provide me with the any
>> > > cytochrome properly parametrized in charmm :)
>> > >
>> > > James
>> > >
>> > >
>> > > 2013/4/3 Justin Lemkul 
>> > >
>> > >> On Wed, Apr 3, 2013 at 10:27 AM, James Starlight <
>> > jmsstarli...@gmail.com
>> > >> >wrote:
>> > >>
>> > >> > I've successfully parametrize cytochrome-HEME complex by means
>> pdb2gmx
>> > >> but
>> > >> > after processing that structure to grompp I've obtained errors like
>> > >> >
>> > >> > ERROR 1 [file topol.top, line 2106]:
>> > >> >   No default Bond types
>> > >> >
>> > >> >
>> > >> > ERROR 2 [file topol.top, line 2144]:
>> > >> >   No default Bond types
>> > >> >
>> > >> >
>> > >> > ERROR 3 [file topol.top, line 3153]:
>> > >> >   No default Bond types
>> > >> >
>> > >> >
>> > >> > ERROR 4 [file topol.top, line 8725]:
>> > >> >   No default U-B types
>> > >> >
>> > >> >
>> > >> > ERROR 5 [file topol.top, line 8792]:
>> > >> >   No default U-B types
>> > >> >
>> > >> >
>> > >> > ERROR 6 [file topol.top, line 10624]:
>> > >> >   No default U-B types
>> > >> >
>> > >> >
>> > >> > ERROR 7 [file topol.top, line 10625]:
>> > >> >   No default U-B types
>> > >> >
>> > >> >
>> > >> > ERROR 8 [file topol.top, line 11382]:
>> > >> >   No default U-B types
>> > >> >
>> > >> >
>> > >> > ERROR 9 [file topol.top, line 11383]:
>> > >> >   No default U-B types
>> > >> >
>> > >> >
>> > >> > ERROR 10 [file topol.top, line 11384]:
>> > >> >   No default U-B types
>> > >> >
>> > >> >
>> > >> > ERROR 11 [file topol.top, line 11385]:
>> > >> >   No default U-B types
>> > >> >
>> > >> >
>> > >> > ERROR 12 [file topol.top, line 11491]:
>> > >> >   No default U-B types
>> > >> >
>> > >> >
>> > >> > ERROR 13 [file topol.top, line 11492]:
>> > >> >   No default U-B types
>> > >> >
>> > >> >
>> > >> > ERROR 14 [file topol.top, line 11493]:
>> > >> >   No default U-B types
>> > >> >
>> > >> >
>> > >> > ERROR 15 [file topol.top, line 11506]:
>> > >> >   No default U-B types
>> > >> >
>> > >> >
>> > >> > ERROR 16 [file topol.top, line 11507]:
>> > >> >   No default U-B types
>> > >> >

[gmx-users] pbc problem

2013-04-12 Thread Kieu Thu Nguyen
Dear All,

I made a POPC bilayer and carried out embedding a protein into this
membrane. But the fatal error has appeared :
Fatal error:
Something is wrong with your membrane. Max and min z values are 12.342000
and 0.016000. Maybe your membrane is not centered in the box, but located
at the box edge in the z-direction, so that one membrane is distributed
over two periodic box images. Another possibility is that your water layer
is not thick enough.

I think my bilayer stay at between two periodic images. What should i do to
put it in corrected position ?

Thankful for any help !
Regards,

Thu
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Re: [gmx-users] Dihedral angle PCA

2013-04-12 Thread Thomas Evangelidis
>
> > dPCA is
> > preferred in cases of peptides or intrinsically disordered proteins.
> >
>
> And even then a disordered mess can still be a disordered mess...
>
>
Very true!


-- 

==

Thomas Evangelidis

PhD student
University of Athens
Faculty of Pharmacy
Department of Pharmaceutical Chemistry
Panepistimioupoli-Zografou
157 71 Athens
GREECE

email: tev...@pharm.uoa.gr

  teva...@gmail.com


website: https://sites.google.com/site/thomasevangelidishomepage/
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Re: [gmx-users] Dihedral angle PCA

2013-04-12 Thread Mark Abraham
On Fri, Apr 12, 2013 at 11:28 AM, Thomas Evangelidis wrote:

> On 12 April 2013 07:51, anu chandra  wrote:
>
> > Hi David,
> >
> > Thanks for the reply. I have not tried yet. Since I didn’t find query
> about
> > the dihedral PCA in the mail list, I thought of confirm about the steps
> > mentioned in the web site.
> >
> >
> > Regarding the use of dihedral PCA, the protein with which I am working
> > behave differently from others. From literature, this protein shows
> minimal
> > backbone conformational changes during ligand binding and presumed that
> > there is high degree of side-chain conformational changes during binding
> to
> > ligand. This made me to think about dihedral PCA for get some information
> > about the ligand binding. What is your opinion in this regard?
> >
> >
> Why not Cartesian PCA restricted to the protein backbone ?


Ja. Fit to the backbone, and measure on the side chains. In principle, any
kind of difference metric could work. RMSD of side chain atoms vs backbone
atoms is all you need for "are the side chains the ones changing upon
binding?"


> dPCA is
> preferred in cases of peptides or intrinsically disordered proteins.
>

And even then a disordered mess can still be a disordered mess...

Mark


> > Is there any other sort of analyses that can help me to quantify such
> > side-chain conformational changes and also to locate the regions in
> > protein, which have  high degree of side-chain conformational changes
> > during ligand binding?
> >
> > Waiting for your valuable reply.
> >
> > Thanks and regards
> > Anu
> >
> >
> >
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Re: [gmx-users] cygwin_mpi_gmx installation

2013-04-12 Thread Szilárd Páll
Indeed it's strange. In fact, it seems that CUDA detection did not
even run, there should be a message whether it found the toolkit or
not just before the "Enabling native GPU acceleration" - and the
enabling should not even happen without CUDA detected.

Unrelated, but do you really need MPI with cygwin? Unless you are
planning to run on multiple Windows machines, the default thread-MPI
parallelization is enough to use multiple cores!

Cheers,
--
Szilárd


On Fri, Apr 12, 2013 at 1:04 PM, Mark Abraham  wrote:
> That looks really strange. CMake claims to detect CUDA but the right
> variables are not set.
>
> 1) Can you reproduce this in a clean build directory?
> 2) If so, what CUDA is present?
>
> Mark
>
>
> On Thu, Apr 11, 2013 at 2:57 PM, 라지브간디  wrote:
>
>> Dear gmx,
>>
>>
>> I have installed mpich for MPI use in cygwin (Win 7 -64 bit) and
>> encountered the following error : I dont understand what I am missing here?
>>
>>
>> $ cmake .. -DGMX_MPI=ON -DGMX_BUILD_OWN_FFTW=ON
>>
>>
>> -- The C compiler identification is GNU 4.8.0
>> -- Check for working C compiler: /usr/bin/gcc.exe
>> -- Check for working C compiler: /usr/bin/gcc.exe -- works
>> -- Detecting C compiler ABI info
>> -- Detecting C compiler ABI info - done
>> -- Looking for NVIDIA GPUs present in the system
>> -- Could not detect NVIDIA GPUs
>> -- Enabling native GPU acceleration
>> -- The CXX compiler identification is GNU 4.8.0
>> -- Check for working CXX compiler: /usr/bin/c++.exe
>> -- Check for working CXX compiler: /usr/bin/c++.exe -- works
>> -- Detecting CXX compiler ABI info
>> -- Detecting CXX compiler ABI info - done
>> -- Checking for GCC x86 inline asm
>> -- Checking for GCC x86 inline asm - supported
>> -- Detecting best acceleration for this CPU
>> -- Detecting best acceleration for this CPU - AVX_256
>> -- Try OpenMP C flag = [-fopenmp]
>> -- Performing Test OpenMP_FLAG_DETECTED
>> -- Performing Test OpenMP_FLAG_DETECTED - Success
>> -- Try OpenMP CXX flag = [-fopenmp]
>> -- Performing Test OpenMP_FLAG_DETECTED
>> -- Performing Test OpenMP_FLAG_DETECTED - Success
>> -- Found OpenMP: -fopenmp
>> -- Performing Test CFLAGS_WARN
>> -- Performing Test CFLAGS_WARN - Success
>> -- Performing Test CFLAGS_WARN_EXTRA
>> -- Performing Test CFLAGS_WARN_EXTRA - Success
>> -- Performing Test CFLAGS_EXCESS_PREC
>> -- Performing Test CFLAGS_EXCESS_PREC - Success
>> -- Performing Test CFLAGS_COPT
>> -- Performing Test CFLAGS_COPT - Success
>> -- Performing Test CFLAGS_NOINLINE
>> -- Performing Test CFLAGS_NOINLINE - Success
>> -- Performing Test CXXFLAGS_WARN
>> -- Performing Test CXXFLAGS_WARN - Success
>> -- Performing Test CXXFLAGS_WARN_EXTRA
>> -- Performing Test CXXFLAGS_WARN_EXTRA - Success
>> -- Performing Test CXXFLAGS_EXCESS_PREC
>> -- Performing Test CXXFLAGS_EXCESS_PREC - Success
>> -- Performing Test CXXFLAGS_COPT
>> -- Performing Test CXXFLAGS_COPT - Success
>> -- Performing Test CXXFLAGS_NOINLINE
>> -- Performing Test CXXFLAGS_NOINLINE - Success
>> -- Using default binary suffix: "_mpi"
>> -- Using default library suffix: "_mpi"
>> -- Looking for include file string.h
>> -- Looking for include file string.h - found
>> -- Looking for include file math.h
>> -- Looking for include file math.h - found
>> -- Looking for include file limits.h
>> -- Looking for include file limits.h - found
>> -- Looking for include file memory.h
>> -- Looking for include file memory.h - found
>> -- Looking for include file unistd.h
>> -- Looking for include file unistd.h - found
>> -- Looking for include file direct.h
>> -- Looking for include file direct.h - not found
>> -- Looking for include file pwd.h
>> -- Looking for include file pwd.h - found
>> -- Looking for include file stdint.h
>> -- Looking for include file stdint.h - found
>> -- Looking for include file stdlib.h
>> -- Looking for include file stdlib.h - found
>> -- Looking for include file pthread.h
>> -- Looking for include file pthread.h - found
>> -- Looking for include file dirent.h
>> -- Looking for include file dirent.h - found
>> -- Looking for include file inttypes.h
>> -- Looking for include file inttypes.h - found
>> -- Looking for include file regex.h
>> -- Looking for include file regex.h - found
>> -- Looking for include file sys/types.h
>> -- Looking for include file sys/types.h - found
>> -- Looking for include file sys/stat.h
>> -- Looking for include file sys/stat.h - found
>> -- Looking for include file sys/time.h
>> -- Looking for include file sys/time.h - found
>> -- Looking for include file rpc/rpc.h
>> -- Looking for include file rpc/rpc.h - not found
>> -- Looking for include files rpc/rpc.h, rpc/xdr.h
>> -- Looking for include files rpc/rpc.h, rpc/xdr.h - not found
>> -- Looking for include file io.h
>> -- Looking for include file io.h - found
>> -- Looking for include file sched.h
>> -- Looking for include file sched.h - found
>> -- Looking for strcasecmp
>> -- Looking for strcasecmp - found
>> -- Looking for strdup
>> -- Looking for strdup - found
>> -- Looking fo

Re: [gmx-users] cygwin_mpi_gmx installation

2013-04-12 Thread Mark Abraham
That looks really strange. CMake claims to detect CUDA but the right
variables are not set.

1) Can you reproduce this in a clean build directory?
2) If so, what CUDA is present?

Mark


On Thu, Apr 11, 2013 at 2:57 PM, 라지브간디  wrote:

> Dear gmx,
>
>
> I have installed mpich for MPI use in cygwin (Win 7 -64 bit) and
> encountered the following error : I dont understand what I am missing here?
>
>
> $ cmake .. -DGMX_MPI=ON -DGMX_BUILD_OWN_FFTW=ON
>
>
> -- The C compiler identification is GNU 4.8.0
> -- Check for working C compiler: /usr/bin/gcc.exe
> -- Check for working C compiler: /usr/bin/gcc.exe -- works
> -- Detecting C compiler ABI info
> -- Detecting C compiler ABI info - done
> -- Looking for NVIDIA GPUs present in the system
> -- Could not detect NVIDIA GPUs
> -- Enabling native GPU acceleration
> -- The CXX compiler identification is GNU 4.8.0
> -- Check for working CXX compiler: /usr/bin/c++.exe
> -- Check for working CXX compiler: /usr/bin/c++.exe -- works
> -- Detecting CXX compiler ABI info
> -- Detecting CXX compiler ABI info - done
> -- Checking for GCC x86 inline asm
> -- Checking for GCC x86 inline asm - supported
> -- Detecting best acceleration for this CPU
> -- Detecting best acceleration for this CPU - AVX_256
> -- Try OpenMP C flag = [-fopenmp]
> -- Performing Test OpenMP_FLAG_DETECTED
> -- Performing Test OpenMP_FLAG_DETECTED - Success
> -- Try OpenMP CXX flag = [-fopenmp]
> -- Performing Test OpenMP_FLAG_DETECTED
> -- Performing Test OpenMP_FLAG_DETECTED - Success
> -- Found OpenMP: -fopenmp
> -- Performing Test CFLAGS_WARN
> -- Performing Test CFLAGS_WARN - Success
> -- Performing Test CFLAGS_WARN_EXTRA
> -- Performing Test CFLAGS_WARN_EXTRA - Success
> -- Performing Test CFLAGS_EXCESS_PREC
> -- Performing Test CFLAGS_EXCESS_PREC - Success
> -- Performing Test CFLAGS_COPT
> -- Performing Test CFLAGS_COPT - Success
> -- Performing Test CFLAGS_NOINLINE
> -- Performing Test CFLAGS_NOINLINE - Success
> -- Performing Test CXXFLAGS_WARN
> -- Performing Test CXXFLAGS_WARN - Success
> -- Performing Test CXXFLAGS_WARN_EXTRA
> -- Performing Test CXXFLAGS_WARN_EXTRA - Success
> -- Performing Test CXXFLAGS_EXCESS_PREC
> -- Performing Test CXXFLAGS_EXCESS_PREC - Success
> -- Performing Test CXXFLAGS_COPT
> -- Performing Test CXXFLAGS_COPT - Success
> -- Performing Test CXXFLAGS_NOINLINE
> -- Performing Test CXXFLAGS_NOINLINE - Success
> -- Using default binary suffix: "_mpi"
> -- Using default library suffix: "_mpi"
> -- Looking for include file string.h
> -- Looking for include file string.h - found
> -- Looking for include file math.h
> -- Looking for include file math.h - found
> -- Looking for include file limits.h
> -- Looking for include file limits.h - found
> -- Looking for include file memory.h
> -- Looking for include file memory.h - found
> -- Looking for include file unistd.h
> -- Looking for include file unistd.h - found
> -- Looking for include file direct.h
> -- Looking for include file direct.h - not found
> -- Looking for include file pwd.h
> -- Looking for include file pwd.h - found
> -- Looking for include file stdint.h
> -- Looking for include file stdint.h - found
> -- Looking for include file stdlib.h
> -- Looking for include file stdlib.h - found
> -- Looking for include file pthread.h
> -- Looking for include file pthread.h - found
> -- Looking for include file dirent.h
> -- Looking for include file dirent.h - found
> -- Looking for include file inttypes.h
> -- Looking for include file inttypes.h - found
> -- Looking for include file regex.h
> -- Looking for include file regex.h - found
> -- Looking for include file sys/types.h
> -- Looking for include file sys/types.h - found
> -- Looking for include file sys/stat.h
> -- Looking for include file sys/stat.h - found
> -- Looking for include file sys/time.h
> -- Looking for include file sys/time.h - found
> -- Looking for include file rpc/rpc.h
> -- Looking for include file rpc/rpc.h - not found
> -- Looking for include files rpc/rpc.h, rpc/xdr.h
> -- Looking for include files rpc/rpc.h, rpc/xdr.h - not found
> -- Looking for include file io.h
> -- Looking for include file io.h - found
> -- Looking for include file sched.h
> -- Looking for include file sched.h - found
> -- Looking for strcasecmp
> -- Looking for strcasecmp - found
> -- Looking for strdup
> -- Looking for strdup - found
> -- Looking for vprintf
> -- Looking for vprintf - found
> -- Looking for memcmp
> -- Looking for memcmp - found
> -- Looking for posix_memalign
> -- Looking for posix_memalign - found
> -- Looking for memalign
> -- Looking for memalign - found
> -- Looking for _aligned_malloc
> -- Looking for _aligned_malloc - not found
> -- Looking for gettimeofday
> -- Looking for gettimeofday - found
> -- Looking for isnan
> -- Looking for isnan - found
> -- Looking for _isnan
> -- Looking for _isnan - not found
> -- Looking for fsync
> -- Looking for fsync - found
> -- Looking for _fileno
> -- Looking for _fileno - not found
> -- Looking for fileno
> -

[gmx-users] Re: Is it possible to pull 2 different groups with respect to a third group as reference?

2013-04-12 Thread Thomas Schlesier

Yes, from 4.5.x manual:

pull_ngroups: (1)
The number of pull groups, not including the reference group. [...]

Just set 'pull_ngroups = 2' and then make entries for
pull_group1 -> pull_vec1 ...
pull_group2 -> pull_vec2 ...
and so on...

greetings
thomas

Am 12.04.2013 12:00, schrieb gmx-users-requ...@gromacs.org:

I have 3 groups on the system, and I want to pull 2 groups with respect to
the 3rd one. Is it possible in GROMACS?

Thanking you,
Saikat


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Re: [gmx-users] Dihedral angle PCA

2013-04-12 Thread Thomas Evangelidis
On 12 April 2013 07:51, anu chandra  wrote:

> Hi David,
>
> Thanks for the reply. I have not tried yet. Since I didn’t find query about
> the dihedral PCA in the mail list, I thought of confirm about the steps
> mentioned in the web site.
>
>
> Regarding the use of dihedral PCA, the protein with which I am working
> behave differently from others. From literature, this protein shows minimal
> backbone conformational changes during ligand binding and presumed that
> there is high degree of side-chain conformational changes during binding to
> ligand. This made me to think about dihedral PCA for get some information
> about the ligand binding. What is your opinion in this regard?
>
>
Why not Cartesian PCA restricted to the protein backbone ? dPCA is
preferred in cases of peptides or intrinsically disordered proteins.


> Is there any other sort of analyses that can help me to quantify such
> side-chain conformational changes and also to locate the regions in
> protein, which have  high degree of side-chain conformational changes
> during ligand binding?
>
> Waiting for your valuable reply.
>
> Thanks and regards
> Anu
>
>
>
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Re: [gmx-users] Simulation of the HEM-containing proteins

2013-04-12 Thread James Starlight
by the way also I've tried to make model of cytochrome p450 in charmm. In
that case heme have only one coordinate bond with the side chain of
cysteine (not 2 covalent bonds with cysteines as in the cytochrome-C). So
as I understand I should include model of heme as the diffusion ligand ( as
the separate itp file in the topology) should'n it ?
How I can define coordinate bond of the heme's FE atom with the cysteine
side chain (in the pdb2gmx I found that such can be done only for
histidines)?

James

2013/4/12 Mark Abraham 

> Look in the literature...
>
>
> On Thu, Apr 11, 2013 at 2:12 PM, James Starlight  >wrote:
>
> > During the past few days I've tried to make parametrization of any
> > heme-containing cythochromes and always failed with the huge errors about
> > missing parameters. Could someone provide me with such params (i suppose
> it
> > should be added to thebonded/non-bonded.itps of the force field besides
> the
> > rtps) for any ful-atomic force field? Finally I've not found in mailing
> > list any possible sollution of the same problems.
> >
> >
> > James
> >
> > 2013/4/4 James Starlight 
> >
> > > It was strange for me the big number of such errors :)
> > > May the construction of new scheme for the hydrogens  in the .hdb file
> > > partly solve my problem ? ( as I've mentioned previously i had mismatch
> > in
> > > 2 hydrogens ( in comparison to the NMR-like structure).
> > > Should also HEME be added in the residuetype.dat as the part of the
> > > protein?
> > >
> > > Finally I'll be thankful to everyone who could provide me with the any
> > > cytochrome properly parametrized in charmm :)
> > >
> > > James
> > >
> > >
> > > 2013/4/3 Justin Lemkul 
> > >
> > >> On Wed, Apr 3, 2013 at 10:27 AM, James Starlight <
> > jmsstarli...@gmail.com
> > >> >wrote:
> > >>
> > >> > I've successfully parametrize cytochrome-HEME complex by means
> pdb2gmx
> > >> but
> > >> > after processing that structure to grompp I've obtained errors like
> > >> >
> > >> > ERROR 1 [file topol.top, line 2106]:
> > >> >   No default Bond types
> > >> >
> > >> >
> > >> > ERROR 2 [file topol.top, line 2144]:
> > >> >   No default Bond types
> > >> >
> > >> >
> > >> > ERROR 3 [file topol.top, line 3153]:
> > >> >   No default Bond types
> > >> >
> > >> >
> > >> > ERROR 4 [file topol.top, line 8725]:
> > >> >   No default U-B types
> > >> >
> > >> >
> > >> > ERROR 5 [file topol.top, line 8792]:
> > >> >   No default U-B types
> > >> >
> > >> >
> > >> > ERROR 6 [file topol.top, line 10624]:
> > >> >   No default U-B types
> > >> >
> > >> >
> > >> > ERROR 7 [file topol.top, line 10625]:
> > >> >   No default U-B types
> > >> >
> > >> >
> > >> > ERROR 8 [file topol.top, line 11382]:
> > >> >   No default U-B types
> > >> >
> > >> >
> > >> > ERROR 9 [file topol.top, line 11383]:
> > >> >   No default U-B types
> > >> >
> > >> >
> > >> > ERROR 10 [file topol.top, line 11384]:
> > >> >   No default U-B types
> > >> >
> > >> >
> > >> > ERROR 11 [file topol.top, line 11385]:
> > >> >   No default U-B types
> > >> >
> > >> >
> > >> > ERROR 12 [file topol.top, line 11491]:
> > >> >   No default U-B types
> > >> >
> > >> >
> > >> > ERROR 13 [file topol.top, line 11492]:
> > >> >   No default U-B types
> > >> >
> > >> >
> > >> > ERROR 14 [file topol.top, line 11493]:
> > >> >   No default U-B types
> > >> >
> > >> >
> > >> > ERROR 15 [file topol.top, line 11506]:
> > >> >   No default U-B types
> > >> >
> > >> >
> > >> > ERROR 16 [file topol.top, line 11507]:
> > >> >   No default U-B types
> > >> >
> > >> >
> > >> > ERROR 17 [file topol.top, line 11508]:
> > >> >   No default U-B types
> > >> >
> > >> >
> > >> > ERROR 18 [file topol.top, line 12147]:
> > >> >   No default Proper Dih. types
> > >> >
> > >> >
> > >> > ERROR 19 [file topol.top, line 12148]:
> > >> >   No default Proper Dih. types
> > >> >
> > >> >
> > >> > ERROR 20 [file topol.top, line 12149]:
> > >> >   No default Proper Dih. types
> > >> >
> > >> >
> > >> > ERROR 21 [file topol.top, line 12150]:
> > >> >   No default Proper Dih. types
> > >> >
> > >> >
> > >> > ERROR 22 [file topol.top, line 12151]:
> > >> >   No default Proper Dih. types
> > >> >
> > >> >
> > >> > ERROR 23 [file topol.top, line 12152]:
> > >> >   No default Proper Dih. types
> > >> >
> > >> >
> > >> > ERROR 24 [file topol.top, line 12247]:
> > >> >   No default Proper Dih. types
> > >> >
> > >> >
> > >> > ERROR 25 [file topol.top, line 12248]:
> > >> >   No default Proper Dih. types
> > >> >
> > >> >
> > >> > ERROR 26 [file topol.top, line 12249]:
> > >> >   No default Proper Dih. types
> > >> >
> > >> >
> > >> > ERROR 27 [file topol.top, line 12250]:
> > >> >   No default Proper Dih. types
> > >> >
> > >> >
> > >> > ERROR 28 [file topol.top, line 12251]:
> > >> >   No default Proper Dih. types
> > >> >
> > >> >
> > >> > ERROR 29 [file topol.top, line 12252]:
> > >> >   No default Proper Dih. types
> > >> >
> > >> >
> > >> > ERROR 30 [file topol.top, line 14948]:
> > >> >   No default Proper Dih. types