[gmx-developers] pull vec

[Alexander Herz]

Hi,

In gromacs 3.3 it was possible to define 2 pull groups and pull them in
opposite directions (using afm and 2 dir vecs).
Now I'm trying to run the same sim in 4.0.5. Here I can only specify a
pull_vec1 (pull_vec0 is not parsed as can be seen
in readpull.c "if (i > 0) {"). Is this the intended behaviour? If yes,
how can I specify the pull direction for pull group 0??

Thx,
Alex