Re: [gmx-users] gromacs 2018 for GPU install on cluster with truly static libraries?

2018-07-22 Thread Shayna Hilburg
or which there were apparently no static > equivalents. > > Mark > > On Sun, Jul 22, 2018, 18:16 Shayna Hilburg wrote: > > > Hi all, > > > > I'm trying to install GROMACS 2018 for use on GPUs. We typically keep the > > software on the master node and j

[gmx-users] gromacs 2018 for GPU install on cluster with truly static libraries?

2018-07-22 Thread Shayna Hilburg
cmake .. -DGMX_BUILD_OWN_FFTW=ON -DREGRESSIONTEST_DOWNLOAD=ON -DGMX_GPU=on -DCMAKE_INSTALL_PREFIX=/mnt/shared/gromacs2018 -DGMX_BUILD_SHARED_EXE=OFF -DGMX_FFT_LIBRARY=fftw3 -DCUDA_TOOLKIT_ROOT_DIR=/mnt/shared/cuda8* Thank you! Shayna -- Shayna Hilburg Doctoral Candidate Massachusetts Institute of Techn

Re: [gmx-users] Pulled group moves randomly while doing umbrella sampling

2018-07-03 Thread Shayna Hilburg
That error is solved by switching to *pull_coord1_geometry = direction-periodic* to let it move over periodic boundary conditions as described here: http://manual.gromacs.org/online/mdp_opt.html#pull On Sat, Jun 30, 2018 at 12:07 AM Chenlin Lu wrote: > Hello, > > > I am doing umbrella sampling

[gmx-users] WHAM for multiple coordinates

2018-05-07 Thread Shayna Hilburg
Hey all, The "gmx wham" command literature says that it is not intended for multiple coordinates but might work. Does anyone have more elaboration on how the algorithm works to combine coordinates and/or if there is a way to separate it and analyze them 1 by 1? Thanks! -Shayna -- Gromacs Users m

[gmx-users] water molecules crashing system

2018-04-24 Thread Shayna Hilburg
Hi, I have a a couple of SPC/E water molecules restrained within a low dielectric medium in a system that also contains ions (restrained to a different region of the box). I was able to run the simulation for several nanoseconds before it crashed due to "water molecule ... can not be settled". The

[gmx-users] partial charges leading to non-zero total charge/floating point arithmetic

2018-04-23 Thread Shayna Hilburg
Hi all, I'm setting up a system and I am getting a non-zero total charge of approximately 0.0002. I have several thousand ions in a system where the cation is a single atom of charge +2, and then the anion is a CO3 molecule (C with +1.3 and O with -1.1). If I change the partial charges to be full