Re: [gmx-users] Running Grompp in reverse and backing up MD data

2018-11-29 Thread Mark Abraham
Hi, Hopefully early in 2019 we will get to the point where the mdp inputs are expressed as key-value data structures, perhaps in JSON. Once we do that, that aspect of the .tpr no longer needs to be binary, and dumping it is trivial. Mark On Thu, Nov 29, 2018 at 5:17 PM Thomas Piggot wrote: >

Re: [gmx-users] Running Grompp in reverse and backing up MD data

2018-11-29 Thread Thomas Piggot
Good to know, thanks! Tom On 29/11/2018 16:08, Paul bauer wrote: Hello, just a warning concerning the last message: The mdp from gmx dump -om will not be the complete representation of your tpr, and you will not be able to regenerate the tpr from this mdp file! I have been working on a

Re: [gmx-users] Running Grompp in reverse and backing up MD data

2018-11-29 Thread Paul bauer
Hello, just a warning concerning the last message: The mdp from gmx dump -om will not be the complete representation of your tpr, and you will not be able to regenerate the tpr from this mdp file! I have been working on a variant that would make this possible, but so far have not managed it.

Re: [gmx-users] Running Grompp in reverse and backing up MD data

2018-11-29 Thread Thomas Piggot
You can get an mdp from a tpr using gmx dump -om Cheers Tom On 29/11/2018 14:58, Peter Kroon wrote: Hi all, thanks for all the feedback. @Milan: I've made a tally of diskspace used per filetype in our lab. In general people here don't save trr files at all (too expensive), yet still out of

Re: [gmx-users] Running Grompp in reverse and backing up MD data

2018-11-29 Thread Peter Kroon
Hi all, thanks for all the feedback. @Milan: I've made a tally of diskspace used per filetype in our lab. In general people here don't save trr files at all (too expensive), yet still out of 125TB total, 65% is made up of xtc files, and 10% is trr files (followed by gro and xvg at 2.5% each).

Re: [gmx-users] Running Grompp in reverse and backing up MD data

2018-11-29 Thread Mark Abraham
Hi, Yes, that's useful output, though strictly some mdp settings (like constraints and gen-vel) are consumed by grompp and thus not reported there. Mark On Thu, Nov 29, 2018 at 3:16 PM Justin Lemkul wrote: > > > On 11/29/18 6:43 AM, Peter Kroon wrote: > > Hi Mark, > > > > thanks for the rapid

Re: [gmx-users] Running Grompp in reverse and backing up MD data

2018-11-29 Thread Mark Abraham
Hi, On Thu, Nov 29, 2018 at 3:05 PM melichercik wrote: > Hi Peter, > may be the gmx dump -s *.tpr can help you a little with extracting > starting data from .tpr file. You would get all interactions, positions > and velocities of all atoms with their types, etc., but the data about > aminoacid

Re: [gmx-users] Running Grompp in reverse and backing up MD data

2018-11-29 Thread Justin Lemkul
On 11/29/18 6:43 AM, Peter Kroon wrote: Hi Mark, thanks for the rapid reply! Hmmn. It doesn't have to be exactly matching input. An equivalent to e.g. mdout.mdp produced by grompp would already be good enough for my All of the input .mdp settings are also written to the header of the

Re: [gmx-users] Running Grompp in reverse and backing up MD data

2018-11-29 Thread Mark Abraham
Hi, On Thu, Nov 29, 2018 at 12:43 PM Peter Kroon wrote: > Hi Mark, > > thanks for the rapid reply! > > Hmmn. It doesn't have to be exactly matching input. An equivalent to > e.g. mdout.mdp produced by grompp would already be good enough for my > purposes. The same goes for a top file containing

Re: [gmx-users] Running Grompp in reverse and backing up MD data

2018-11-29 Thread melichercik
Hi Peter, may be the gmx dump -s *.tpr can help you a little with extracting starting data from .tpr file. You would get all interactions, positions and velocities of all atoms with their types, etc., but the data about aminoacid sequence (well, all more complex informations that those

Re: [gmx-users] Running Grompp in reverse and backing up MD data

2018-11-29 Thread Peter Kroon
Hi Mark, thanks for the rapid reply! Hmmn. It doesn't have to be exactly matching input. An equivalent to e.g. mdout.mdp produced by grompp would already be good enough for my purposes. The same goes for a top file containing only the interactions relevant to the system. Peter On 29-11-18

Re: [gmx-users] Running Grompp in reverse and backing up MD data

2018-11-29 Thread Mark Abraham
Hi, Unfortunately there is no way to generate matching inputs to grompp from a .tpr file. In the longer term, we want that to be possible, but it will require a total rework of how users specify inputs, and that's a large effort! Mark On Thu, Nov 29, 2018 at 11:27 AM Peter Kroon wrote: > Hi

[gmx-users] Running Grompp in reverse and backing up MD data

2018-11-29 Thread Peter Kroon
Hi all, In the lab we're thinking about backup solutions for MD data (and in particular gromacs produced data). Since trajectories tend to be large we quickly decided that backing up the results of simulations is a waste of disk space. Instead, we'll probably go for backing up the TPR files.