Re: [gmx-users] Free volume variation during the simulation

2020-05-07 Thread Mohamed Abdelaal
Many thanks david for the explanation. In did NVT then NPT equilibiration and then the production run, in the production run .mdp file I have the same parameters as in NVT and NPT.mdp files. Does this mean that my simulation is a NVT simulation or NPT ? Is it possible to do only one of them (NVT

Re: [gmx-users] Free volume variation during the simulation

2020-05-06 Thread David van der Spoel
Den 2020-05-06 kl. 10:21, skrev Mohamed Abdelaal: Yes I measured both, the density and the free volume using gromacs. Since the free volume changes with respect to time, shouldn’t the density also change with time ? What do you mean with "changes"? If the density is constant (with

Re: [gmx-users] Free volume variation during the simulation

2020-05-06 Thread Mohamed Abdelaal
I started with NVT then NPT then md production run. Thanks, Kohamed On Wed, May 6, 2020 at 10:40 Arun Srikanth wrote: > Is it an NPT simulation or NVT simulation? > Arun > > On Wed, 6 May 2020, 9:27 am Mohamed Abdelaal, > wrote: > > > Yes I measured both, the density and the free volume using

Re: [gmx-users] Free volume variation during the simulation

2020-05-06 Thread Arun Srikanth
Is it an NPT simulation or NVT simulation? Arun On Wed, 6 May 2020, 9:27 am Mohamed Abdelaal, wrote: > Yes I measured both, the density and the free volume using gromacs. > > Since the free volume changes with respect to time, shouldn’t the density > also change with time ? > > Thanks, >

Re: [gmx-users] Free volume variation during the simulation

2020-05-06 Thread Mohamed Abdelaal
Yes I measured both, the density and the free volume using gromacs. Since the free volume changes with respect to time, shouldn’t the density also change with time ? Thanks, Mohamed On Wed, May 6, 2020 at 08:23 David van der Spoel wrote: > Den 2020-05-06 kl. 01:13, skrev Mohamed Abdelaal: > >

Re: [gmx-users] Free volume variation during the simulation

2020-05-06 Thread David van der Spoel
Den 2020-05-06 kl. 01:13, skrev Mohamed Abdelaal: Hello everybody, I have two fundamental questions please. I have measured the fee volume and I discovered that, the free volume changes with respect to the time during the production run (different value for each frame). However I have measured

Re: [gmx-users] Free volume variation during the simulation

2020-05-05 Thread Mohamed Abdelaal
I am simulating Crystal System (C60 molecules) Thanks, Mohamed On Wed, May 6, 2020 at 1:22 AM Arun Srikanth wrote: > Are you simulating a crystal or amorphous system? > > Arun > > On Wed, May 6, 2020 at 12:13 AM Mohamed Abdelaal > wrote: > > > Hello everybody, > > > > I have two fundamental

Re: [gmx-users] Free volume variation during the simulation

2020-05-05 Thread Arun Srikanth
Are you simulating a crystal or amorphous system? Arun On Wed, May 6, 2020 at 12:13 AM Mohamed Abdelaal wrote: > Hello everybody, > > I have two fundamental questions please. > > I have measured the fee volume and I discovered that, the free volume > changes with respect to the time during the