[gmx-users] constraint pull code / gromacs 5.0.4

[Alex]

>
>
>>
> It has nothing to do with the computational cost of bonds vs. constraints;
> it's the time step.  Without constraints, dt = 0.5 fs (maybe 1.0 fs if
> you're lucky) and with constraints (I don't care which algorithm, but LINCS
> is generally more stable), dt = 2.0 fs.
>
> I've never pushed my time-step, but yeah, I can _sort of_ agree. All of
your angles are still under that huge time-step, which... you know... But
that's really a huge separate discussion. :)

Alex