Re: [gmx-users] seperating bilayers (again)

2006-04-13 Thread Alan Dodd
15, 20, even 30 nm all result in the same effect, just at different rates. I didn't try anything larger than that - several of my systems would be dangerously close to being under 2x the cutoff radius across if I went even slightly higher. --- Eric Jakobsson <[EMAIL PROTECTED]> wrote: > What is

Re: [gmx-users] seperating bilayers (again)

2006-04-12 Thread Eric Jakobsson
What is your van der Waals cut-off distance? From our experience years ago, we sometimes saw this if our van der Waals cut-off was too short; i.e., less than 15 angstroms. That seems long, since it falls off as sixth power, but because the long-range van der Waals is all attractive, there is n

Re: [gmx-users] seperating bilayers (again)

2006-04-06 Thread Alan Dodd
pme.c has already been patched - I've been caught out on that previously. I tried pme_order=4 anyway, just in case - it didn't help. --- Mark Abraham <[EMAIL PROTECTED]> wrote: > Alan Dodd wrote: > > Hello all, > > I've been having some trouble recently with the > > leaflets in my bilayer gently

Re: [gmx-users] seperating bilayers (again)

2006-04-06 Thread Mark Abraham
Alan Dodd wrote: Hello all, I've been having some trouble recently with the leaflets in my bilayer gently drifting apart over a period of a few hundred picoseconds. Increasing the vdW radius hasn't helped (up to 2nm), although it did delay the seperation. Likewise, increasing tau_p from 5 up to

[gmx-users] seperating bilayers (again)

2006-04-06 Thread Alan Dodd
Hello all, I've been having some trouble recently with the leaflets in my bilayer gently drifting apart over a period of a few hundred picoseconds. Increasing the vdW radius hasn't helped (up to 2nm), although it did delay the seperation. Likewise, increasing tau_p from 5 up to 10. The really bi