Hi Jason,
Thanks for your reply. I am going to do QM/MM calculations, since CHARMM was used in our group before, I want to use AMBER to do the calculations but use similar conditions. It seems like the CHARMM protocol in our group uses different cutoffs for electrostatics and VDW so I am wondering whether AMBER also has this option available.
Kind regards,
Pengfei
> On Mar 13, 2017, at 9:30 PM, Jason Swails <jason.swails.gmail.com> wrote:
>
> On Mon, Mar 13, 2017 at 1:06 PM, pengfei li <ldsoar1990.gmail.com> wrote:
>
>> Hi Everyone,
>>
>> Can sander deal with different cutoffs for electrostatic and VDW
>> interactions? Thanks!
>>
>
> No. But pmemd can, I think.
>
> What's the use-case here? If you use PME, the cutoff doesn't have an
> appreciable effect on the electrostatics -- it just affects the split
> between the direct and reciprocal space contributions. So you really only
> need to consider L-J accuracy when picking a nonbonded cutoff. You can
> test this with pmemd, but I don't think you gain much efficiency by using
> different cutoffs for L-J vs. electrostatics...
>
> Good luck,
> Jason
>
> --
> Jason M. Swails
> _______________________________________________
> AMBER-Developers mailing list
> AMBER-Developers.ambermd.org
> http://lists.ambermd.org/mailman/listinfo/amber-developers
_______________________________________________
AMBER-Developers mailing list
AMBER-Developers.ambermd.org
http://lists.ambermd.org/mailman/listinfo/amber-developers
Received on Mon Mar 13 2017 - 20:00:04 PDT
