anjaiah Nalaparaju wrote:
Dear Gromacs users,
I would like to try Gromacs to conduct MD on my system which has, Zeolite( Ti,Si,O elements with pore and extraframework cations like Na+), water as solvent and some counterions in water. I am intrested to study the ionexcahnge in this system. I tried Dl_POLY but because of expensive CPU time, I am badly looking for another package which will help in fast computations.Any help and suggestions regarding this issue will be greatly appreciated.

If you don't already have access to a force field for your system formatted for use in GROMACS, then you'll have to write/convert your own. Extensive reference to Chapters 4 and 5 of the manual will be required. You should look around the web and literature for what might be available.

It is worth doing some of the tutorial material to get a feel for how things fit together in GROMACS, even though they're mostly focussed on protein simulations.

Mark
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