[lammps-users] The output of "fix smd"

Dear Lammps users,

Now I have problem with the output of “fix smd” (steered MD). In the manual, it says we can get a vector list of 7 quantities associated with this fix by various output command.

In the input file, I have

fix 6 hi1 smd cvel 215.0 -0.00001 tether NULL 60.0 NULL 0.0

thermo_style custom step temp pe emol etotal press vol f_6

I got the error message of
ERROR: Thermo fix ID does not compute scalar info

I did compile this package with “user-smd” package and I can run this code completely if I didn’t put “f_6” in “thermo_style”.

Could anyone tell me how solve this problem, please?

Most appreciate.

Sincerely
Yajie Lei

Dear Lammps users,

dear yajie lei,

Now I have problem with the output of "fix smd" (steered MD). In the manual,
it says we can get a vector list of 7 quantities associated with this fix by
various output command.

yes.

In the input file, I have

fix 6 hi1 smd cvel 215.0 -0.00001 tether NULL 60.0 NULL
0.0

I got the error message of
ERROR: Thermo fix ID does not compute scalar info

and deservedly so. since the fix computes a "vector" of numbers,
you have to print the individual elements, as thermo custom only
prints scalar numbers. i.e. you'll have to do something like:

thermo_style custom step temp pe emol etotal press vol f_6[1] f_6[2] f_6[3]

and so on.

cheers,
   axel.