Re: [gmx-users] constant x-y plane area for membrane simulations.

2020-01-30 Thread Justin Lemkul




On 1/30/20 8:21 PM, Miro Astore wrote:

Hello all,

I'm just wondering if gromacs supports constant x-y plane area for npt
simulations like NAMD does.


Use semiisotropic coupling with the x/y compressibility set to zero.

-Justin

--
==

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Office: 301 Fralin Hall
Lab: 303 Engel Hall

Virginia Tech Department of Biochemistry
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[gmx-users] constant x-y plane area for membrane simulations.

2020-01-30 Thread Miro Astore
Hello all,

I'm just wondering if gromacs supports constant x-y plane area for npt
simulations like NAMD does.

Best, Miro
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Re: [gmx-users] gromacs-2020 build gcc/nvcc error

2020-01-30 Thread Ryan Woltz
Dear Szilárd,

 Thank you so much for your help. I performed the following steps
and it seems to have built successfully, I'll let you know if it does not
run correctly as well.

rm -r gromacs-2020/
sudo apt-get install gcc-8 g++-8
tar -xvzf gromacs-2020.tar.gz
cd gromacs-2020/
mkdir build
cd build
CMAKE_PREFIX_PATH=/usr/:/usr/local/cuda/ cmake ../ -DGMX_BUILD_OWN_FFTW=ON
-DREGRESSIONTEST_DOWNLOAD=ON -DGMX_GPU=ON
-DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda/ -DCMAKE_BUILD_TYPE=release
make
make check
sudo make install
source /usr/local/gromacs/bin/GMXRC

Lastly, when I was building in default and ran into trouble I like to build
in debug so it gives details about building and helps me identify source of
the problems or identify relevant information to pass to you so you can
better help me. I appreciate your comment about not building in debugging
mode, but is there a way to run release in verbose mode? When I had
problems with other programs I'd usually build my first time in debugger
mode so I can monitor the process, then make clean and rebuild in default.
Is there a better way to do this?

Once again you help was greatly appreciated,

Ryan

PS again a few notes (if you have time to comment on anything incorrect) I
have for people needing a fix in the future and maybe myself if I do this
again in a few years and forget how.

CUDA version (nvcc --version) is 9.1. This is a little confusing to me
because you referenced CUDA 10.1 and I completely rebuilt this computer in
September 2019, so unless there is a new driver since then it should be
10.1? I grabbed the newest drivers I could find but my computer is
outputting 9.1 so I guess that is my version.

when building gromacs and I specify gcc/g++ verison 5, 8, or 9 it fails
with the original error message regarding glibc 23.2.

CMAKE_PREFIX_PATH=/usr/:/usr/local/cuda/ cmake ../
-DGMX_GPLUSPLUS_PATH=/usr/bin/g++-8 -DCUDA_HOST_COMPILER=gcc-8
-DCMAKE_CXX_COMPILER=g++-8 -DCMAKE_C_COMPILER=/usr/bin/gcc-8
-DGMX_BUILD_OWN_FFTW=ON -DREGRESSIONTEST_DOWNLOAD=ON -DGMX_GPU=ON
-DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda/ -DCMAKE_BUILD_TYPE=release

Do you know why this is? When I started this adventure I just had sudo
apt-get install gcc g++ build-essentials. Then I used gcc-5 g++-5 and
specified the version in the build step, which failed. after taking that
out and running sudo apt-get install gcc-9 g++-9 it passes "CMAKE" but
fails in "make". Based on your suggestions I ran the commands at the top of
the email to which then worked. Would this have worked if I had just
installed gcc-8 g++-8 from the beginning and ran CMAKE with no version
specification?


On Thu, Jan 30, 2020 at 5:50 AM Szilárd Páll  wrote:

> Dear Ryan,
>
> On Wed, Jan 29, 2020 at 10:35 PM Ryan Woltz  wrote:
>
> > Dear Szilárd,
> >
> >  Thank you for your quick response. You are correct, after
> > issuing sudo apt-get install gcc-9 g++-9 CMake was run with:
> >
>
> gcc 9 is not supported with CUDA, as far as I know version 8 is the latest
> supported gcc in CUDA 10.2 (officially "native support" whatever they mean
> by that is for 7.3 on Ubuntu 18.04.3, see
> https://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html)
>
> CMAKE_PREFIX_PATH=/usr/:/usr/local/cuda/ cmake ../ -DGMX_BUILD_OWN_FFTW=ON
> > -DREGRESSIONTEST_DOWNLOAD=ON -DGMX_GPU=ON
> > -DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda/ -DCMAKE_BUILD_TYPE=Debug
> >
>
> Don't use a Debug build unless you want to debug the GROMACS tools (it's
> slow).
>
> Make sure that you cmake configuration does actually use the gcc version
> you intend to use. The default invocation as above will pick up the default
> compiler toolchain (e.g. /us/bin/gcc in your case, you can verify that by
> opening the CMakeCache.txt file or using ccmake) -- and I think the lack of
> proper AVX512 support in your default gcc 5 (which you are stil; using) is
> the source of the issues you report below.
>
> You can explicitly set the compiler by passing CMAKE_CXX_COMPILER at the
> configure step; for details see
>
> http://manual.gromacs.org/current/install-guide/index.html?highlight=cxx%20compiler#typical-installation
>
> Cheers,
> --
> Szilárd
>
>
> > However now I'm getting an error in make
> >
> > make VERBOSE=1
> >
> > error:
> >
> > [ 25%] Building CXX object
> >
> >
> src/gromacs/CMakeFiles/libgromacs.dir/nbnxm/kernels_simd_2xmm/kernel_ElecEwTwinCut_VdwLJEwCombGeom_F.cpp.o
> > In file included from
> >
> >
> /home/rlwoltz/protein_modeling/gromacs-2020/src/gromacs/simd/impl_x86_avx_512/impl_x86_avx_512.h:46:0,
> >  from
> > /home/rlwoltz/protein_modeling/gromacs-2020/src/gromacs/simd/simd.h:146,
> >  from
> >
> >
> /home/rlwoltz/protein_modeling/gromacs-2020/src/gromacs/nbnxm/nbnxm_simd.h:40,
> >  from
> >
> >
> /home/rlwoltz/protein_modeling/gromacs-2020/src/gromacs/nbnxm/kernels_simd_2xmm/kernel_ElecEwTwinCut_VdwLJEwCombGeom_F.cpp:49:
> >
> >
> 

Re: [gmx-users] Customize gromac FF for lipid parameters

2020-01-30 Thread Justin Lemkul




On 1/30/20 3:02 PM, Yogesh Sharma wrote:

Hey everyone,
I have a membrane patch generated by charmm gui. I want to customize my
gromac forcefield in accordance with it. I want some suggestion in
extracting information from charmmff. I guess i need information to add in
ffbonded and ffnonbonded files. Can someone help me with it

I don't want to run simulations in charmmff



I don't understand what you're trying to do. You want to add parameters 
to the CHARMM force field but you don't want to use CHARMM? If you want 
to use different parameters or a different force field, don't hack an 
existing one. There's no reason to do that.


-Justin

--
==

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Assistant Professor
Office: 301 Fralin Hall
Lab: 303 Engel Hall

Virginia Tech Department of Biochemistry
340 West Campus Dr.
Blacksburg, VA 24061

jalem...@vt.edu | (540) 231-3129
http://www.thelemkullab.com

==

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[gmx-users] Customize gromac FF for lipid parameters

2020-01-30 Thread Yogesh Sharma
Hey everyone,
I have a membrane patch generated by charmm gui. I want to customize my
gromac forcefield in accordance with it. I want some suggestion in
extracting information from charmmff. I guess i need information to add in
ffbonded and ffnonbonded files. Can someone help me with it

I don't want to run simulations in charmmff


-- 
 *  with  regards*
*Yogesh Sharma*
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[gmx-users] Regarding rdf and number of molecules in the FSS of tetramer

2020-01-30 Thread Ashma Khan
Dear user's
I have calculated the rdf of urea molecules around the peptides for
different concentration of urea and obtained that peak height of first
solvation shell (FSS) decreases with increase in concentration of urea.
After that I have calculated the number of urea molecules in FSS and found
that urea molecules in the FSS increases with concentration of urea. There
is no correlation between the peak height of FSS and number of urea
molecules. Can anybody suggest me ? what is the reason
The command I have used is
gmx rdf -f md.xtc -s md.tpr -o rdf.xvg -selrpos whole_res_com -seltype
whole_res_com
gmx select -f md.xtc -s md.tpr -os number.xvg -select "resname URE and
within 0.5 of group protein" -selrpos whole_res_com -seltype whole_res_com


-- 
Ashma Khan
Research Scholar
Department of Chemistry
AMU, Aligarh
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Re: [gmx-users] Analysis with .sh file

2020-01-30 Thread Li, Shi
>
>
> Dear all,
>
> I have recently upgrade my Gromacs to the 2019 version from the 5.0.4
> and I found out that now that while I'm trying to use a .sh, as I was
> doing in the version 5.0.4, now I'm receiving back an error since the
> syntax is wrong. I'm wondering if someone could please help me.
>
>
What is the script in your .sh file? There is not enough information to
find out what goes wrong.



> Regards,
>
> Riccardo
>
>
>
> --
>
>
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[gmx-users] 3D monitors

2020-01-30 Thread tarzan p
Hi all..Am looking for some good 3D monitors (either passive or active)Need 
suggestions for some good 3D monitors for protein structure and interactions 
visualization...
with best wishes
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Re: [gmx-users] Charmm to Gromacs itps

2020-01-30 Thread Justin Lemkul




On 1/28/20 3:35 AM, atb files wrote:
 

 
 @Justin: the lipid is not yet added to the charmm directory. Any script?



How did you produce the original PSF?

-Justin

--
==

Justin A. Lemkul, Ph.D.
Assistant Professor
Office: 301 Fralin Hall
Lab: 303 Engel Hall

Virginia Tech Department of Biochemistry
340 West Campus Dr.
Blacksburg, VA 24061

jalem...@vt.edu | (540) 231-3129
http://www.thelemkullab.com

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Re: [gmx-users] choice of ?Qm Optimized Energy

2020-01-30 Thread Justin Lemkul




On 1/28/20 1:38 AM, Yogesh Sharma wrote:

thanks for your response Dr. Justin
these all values are for same ligand submitted under different molid. All
have net zero charge. only difference is in dQm optimized energy. I dont
know weather i have to choose one with lowest value or the highest. Please
check the link attached https://atb.uq.edu.au/molecule.py?molid=364968


I don't have much experience with ATB but it appears that you're simply 
presented with alternate conformers that may be of lower energy. They're 
all very close in value so I don't know how you might use that information.


-Justin

--
==

Justin A. Lemkul, Ph.D.
Assistant Professor
Office: 301 Fralin Hall
Lab: 303 Engel Hall

Virginia Tech Department of Biochemistry
340 West Campus Dr.
Blacksburg, VA 24061

jalem...@vt.edu | (540) 231-3129
http://www.thelemkullab.com

==

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Re: [gmx-users] Analysis with .sh file

2020-01-30 Thread John Whittaker
What is the command that causes the error and is the error due to
incorrect syntax for bash or gromacs? No one will be able to help without
more information.

- John

> Dear all,
>
> I have recently upgrade my Gromacs to the 2019 version from the 5.0.4
> and I found out that now that while I'm trying to use a .sh, as I was
> doing in the version 5.0.4, now I'm receiving back an error since the
> syntax is wrong. I'm wondering if someone could please help me.
>
> Regards,
>
> Riccardo
>
> --
> Gromacs Users mailing list
>
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[gmx-users] Analysis with .sh file

2020-01-30 Thread Riccardo Concu

Dear all,

I have recently upgrade my Gromacs to the 2019 version from the 5.0.4 
and I found out that now that while I'm trying to use a .sh, as I was 
doing in the version 5.0.4, now I'm receiving back an error since the 
syntax is wrong. I'm wondering if someone could please help me.


Regards,

Riccardo

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Re: [gmx-users] gromacs-2020 build gcc/nvcc error

2020-01-30 Thread Szilárd Páll
Dear Ryan,

On Wed, Jan 29, 2020 at 10:35 PM Ryan Woltz  wrote:

> Dear Szilárd,
>
>  Thank you for your quick response. You are correct, after
> issuing sudo apt-get install gcc-9 g++-9 CMake was run with:
>

gcc 9 is not supported with CUDA, as far as I know version 8 is the latest
supported gcc in CUDA 10.2 (officially "native support" whatever they mean
by that is for 7.3 on Ubuntu 18.04.3, see
https://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html)

CMAKE_PREFIX_PATH=/usr/:/usr/local/cuda/ cmake ../ -DGMX_BUILD_OWN_FFTW=ON
> -DREGRESSIONTEST_DOWNLOAD=ON -DGMX_GPU=ON
> -DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda/ -DCMAKE_BUILD_TYPE=Debug
>

Don't use a Debug build unless you want to debug the GROMACS tools (it's
slow).

Make sure that you cmake configuration does actually use the gcc version
you intend to use. The default invocation as above will pick up the default
compiler toolchain (e.g. /us/bin/gcc in your case, you can verify that by
opening the CMakeCache.txt file or using ccmake) -- and I think the lack of
proper AVX512 support in your default gcc 5 (which you are stil; using) is
the source of the issues you report below.

You can explicitly set the compiler by passing CMAKE_CXX_COMPILER at the
configure step; for details see
http://manual.gromacs.org/current/install-guide/index.html?highlight=cxx%20compiler#typical-installation

Cheers,
--
Szilárd


> However now I'm getting an error in make
>
> make VERBOSE=1
>
> error:
>
> [ 25%] Building CXX object
>
> src/gromacs/CMakeFiles/libgromacs.dir/nbnxm/kernels_simd_2xmm/kernel_ElecEwTwinCut_VdwLJEwCombGeom_F.cpp.o
> In file included from
>
> /home/rlwoltz/protein_modeling/gromacs-2020/src/gromacs/simd/impl_x86_avx_512/impl_x86_avx_512.h:46:0,
>  from
> /home/rlwoltz/protein_modeling/gromacs-2020/src/gromacs/simd/simd.h:146,
>  from
>
> /home/rlwoltz/protein_modeling/gromacs-2020/src/gromacs/nbnxm/nbnxm_simd.h:40,
>  from
>
> /home/rlwoltz/protein_modeling/gromacs-2020/src/gromacs/nbnxm/kernels_simd_2xmm/kernel_ElecEwTwinCut_VdwLJEwCombGeom_F.cpp:49:
>
> /home/rlwoltz/protein_modeling/gromacs-2020/src/gromacs/simd/impl_x86_avx_512/impl_x86_avx_512_util_float.h:
> In function ‘void gmx::gatherLoadTransposeHsimd(const float*, const float*,
> const int32_t*, gmx::SimdFloat*, gmx::SimdFloat*) [with int align = 2;
> int32_t = int]’:
>
> /home/rlwoltz/protein_modeling/gromacs-2020/src/gromacs/simd/impl_x86_avx_512/impl_x86_avx_512_util_float.h:422:28:
> error: the last argument must be scale 1, 2, 4, 8
>  tmp1 = _mm512_castpd_ps(
> ^
>
> /home/rlwoltz/protein_modeling/gromacs-2020/src/gromacs/simd/impl_x86_avx_512/impl_x86_avx_512_util_float.h:424:28:
> error: the last argument must be scale 1, 2, 4, 8
>  tmp2 = _mm512_castpd_ps(
> ^
> src/gromacs/CMakeFiles/libgromacs.dir/build.make:13881: recipe for target
>
> 'src/gromacs/CMakeFiles/libgromacs.dir/nbnxm/kernels_simd_2xmm/kernel_ElecEwTwinCut_VdwLJEwCombGeom_F.cpp.o'
> failed
> make[2]: ***
>
> [src/gromacs/CMakeFiles/libgromacs.dir/nbnxm/kernels_simd_2xmm/kernel_ElecEwTwinCut_VdwLJEwCombGeom_F.cpp.o]
> Error 1
> CMakeFiles/Makefile2:2910: recipe for target
> 'src/gromacs/CMakeFiles/libgromacs.dir/all' failed
> make[1]: *** [src/gromacs/CMakeFiles/libgromacs.dir/all] Error 2
> Makefile:162: recipe for target 'all' failed
> make: *** [all] Error 2
>
> after doing a 1 hour google I found discussions saying that the error
> (Makefile:162: recipe for target 'all' failed) is too vague with no general
> solution. I found fixes for headers and other files for other programs but
> not fixes for this file. The fix linked below is for gromacs-2018 and a
> different file but the general problem seems to suggest it still is a
> gcc/g++ version compatibility error correct? Any suggestions for this
> error?
>
> https://redmine.gromacs.org/issues/2312
>
>
> Thank you so much,
>
> Ryan
>
>  PS Just to document for anyone else going through what I did for
> Gromacs-2020 these were my steps.
>
> sudo apt-get install gcc g++
> cmake ../ -DGMX_BUILD_OWN_FFTW=ON -DREGRESSIONTEST_DOWNLOAD=ON -DGMX_GPU=ON
>
>  I then received multiple errors complaining about nvcc/C++
> incompatibility. After researching found errors for previous gromacs
> versions suggesting to use gcc-5 (but as you suggested this error has been
> patched).
>
> sudo apt-get install gcc-5 g++-5
> CMAKE_PREFIX_PATH=/usr/:/usr/local/cuda/ cmake ../
> -DGMX_GPLUSPLUS_PATH=/usr/bin/g++-5 -DCUDA_HOST_COMPILER=gcc-5
> -DCMAKE_CXX_COMPILER=g++-5 -DCMAKE_C_COMPILER=/usr/bin/gcc-5
> -DGMX_BUILD_OWN_FFTW=ON -DREGRESSIONTEST_DOWNLOAD=ON -DGMX_GPU=ON
> -DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda/ -DCMAKE_BUILD_TYPE=Debug
> -D_FORCE_INLINES=OFF
>
> Received different error described in previous email and solved with your
> suggested solution. The key might be to specifically install latest version
> number i.e.
>
> sudo apt-get install gcc-X 

Re: [gmx-users] TraPPE-EH in GROMACS

2020-01-30 Thread Alessandra Villa
Hi
Maybe the definitions in the manual page (middle part) below may help you.
(
http://manual.gromacs.org/documentation/current/reference-manual/topologies/topology-file-formats.html?highlight=file%20top
)
Best regards
Alessandra

On Tue, Jan 28, 2020 at 8:41 AM Dhrubajyoti Maji  wrote:

> Dear gromacs users,
> I want to use TraPPE-EH force field parameters in GROMACS-2018.3. I
> have understood that in top file nbfunc=1,
> comb-rule=2,fudgeLJ=0.5,fudgeQQ=0.8333. But what will be the values of
> gen-pairs, nrexcl and [ pairs] section ? Any kind of help will be highly
> appreciated.
> Thanks and regards
>
> Dhrubajyoti Maji
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[gmx-users] How to use TIP4P-ICE water model

2020-01-30 Thread mbhendle
Dear all, 

I want to use TIP4P-ICE water model for my simulations, but inbuilt .gro
file of TIP4P-ICE is not available in Gromacs 2018. I tried alternate
method by solvating using TIP4P model and then by changing the "itp"
file of TIP4P in topology file with that of TIP4P-ICE. 

But the result of this simulation(RDF) is very different from that of
literature. Please suggest any alternate approach. 

Thanks & Regards, 

Mangesh Bhendale
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