Home > Community > gmx mdrun error Invalid input values In option s"
Upvote

29

Downvote
+ Gromacs
Posted by
Meg Osterby

gmx mdrun error Invalid input values In option s"

Anthony Picco  Follow

If the command line says "command not found", it means that the binary is not executable or not found in any of the paths mentioned in the $PATH environmental variable. You can check for example this tutorial for details on how it works and how to resolve problems related to this variable.

Which probably means, that you need to go a step back, to the installation instructions of gromacs and try to install the mdrun binary. However, if the mdrun was not installed successfully, it's very likely that more stuff of the package will be missing, so it might be worth reinstalling it all.

P.S. It's not obvious to me if getting mdrun it will resolve the first posted problem (I have never worked with gromacs). If you would share the link to the research you have done, that would help others to help you.

More

Upvote

VOTE

Downvote
Frazer Norris  Follow
few unanswered GROMACS questions hereMore
Upvote

VOTE

Downvote
Gregory A. Beamer  Follow
This was a great answer Kamil! We have a More
Upvote

VOTE

Downvote
James Rickman  Follow
, are you able to help us out at all with those? I'm trying to help take care of the unanswered queue.More
Upvote

VOTE

Downvote
Colin Banks  Follow

I think there was a misunderstanding here. Two errors are in user5520049's post.

  1. A .tpr is not present in the workingdirectory so gromacs complains, if your .tpr is topol then you have to give this fileto gmx mdrun: gmx mdrun -s topol.
  2. mdrun is not a command, you should have called instead: gmx mdrun -h. That's why you had command not found and not because gmx is not in your $PATH. You couldn't have run gmx mdrun in the first place otherwise.

Side tip: run gmx mdrun -h -hidden to see hidden options.

More

Upvote

VOTE

Downvote
James Shank  Follow
, maybe you could take a look to be familiarized with this MD engine ;)More
Upvote

VOTE

Downvote
Edmnjds56-  Follow
and name your tpr un_count.tpr 2. do not use -deffnm and not use -s and have default topol.tpr in the working directory. 3. do not use -deffnm & use -s yourcustomtpr.tprMore
Upvote

VOTE

Downvote
Edna Chitamba Banda  Follow
, are you able to help us out at all with those? I'm trying to help take care of the unanswered queue.More
Upvote

VOTE

Downvote
Jim Austin  Follow
Here is a link to good gromacs tutorials: More
Upvote

VOTE

Downvote
Joel Harvey  Follow
(which you didn't mention in your orginal post btw) with gmx mdrun which is the option to setup default input and output names. So with More
Upvote

VOTE

Downvote
more replies