ERROR: Invalid fix style

Dear users,

I met the following error when I tried to run the simulation “rigid” in the example file of lammps. I checked the manual and the mailing list, this error seems to be caused by missing package. I think here the “invalid fix style” is talking about “rigid”, but I installed the package RIGID and compiled it by using “make openmpi”, which is successful. But I still get the following error message. I am using opensuse 12.3, 64 bit, the lammps package is the version updated in 2013/10/29. Any idea what package am I missing too?

ERROR: Invalid fix style (…/modify.cpp:714)

the in.rigid file:

Simple rigid body system

units lj
atom_style atomic

pair_style lj/cut 2.5

read_data data.rigid

velocity all create 100.0 4928459

unconnected bodies

group clump1 id <> 1 9
group clump2 id <> 10 18
group clump3 id <> 19 27
group clump4 id <> 28 36
group clump5 id <> 37 45
group clump6 id <> 46 54
group clump7 id <> 55 63
group clump8 id <> 64 72
group clump9 id <> 73 81

fix 1 all rigid group 9 clump1 clump2 clump3 clump4 clump5 clump6 clump7 clump8 clump9

1 chain of connected bodies

#group clump1 id <> 1 9
#group clump2 id <> 9 18
#group clump3 id <> 18 27
#group clump4 id <> 27 36
#group clump5 id <> 36 45
#group clump6 id <> 45 54
#group clump7 id <> 54 63
#group clump8 id <> 63 72
#group clump9 id <> 72 81

#fix 1 all poems group clump1 clump2 clump3 clump4 clump5 &

clump6 clump7 clump8 clump9

2 chains of connected bodies

#group clump1 id <> 1 9
#group clump2 id <> 9 18
#group clump3 id <> 18 27
#group clump4 id <> 27 36
#group clump5 id <> 37 45
#group clump6 id <> 45 54
#group clump7 id <> 54 63
#group clump8 id <> 63 72
#group clump9 id <> 72 81

#fix 1 all poems group clump1 clump2 clump3 clump4
#fix 2 all poems group clump5 clump6 clump7 clump8 clump9

neigh_modify exclude group clump1 clump1
neigh_modify exclude group clump2 clump2
neigh_modify exclude group clump3 clump3
neigh_modify exclude group clump4 clump4
neigh_modify exclude group clump5 clump5
neigh_modify exclude group clump6 clump6
neigh_modify exclude group clump7 clump7
neigh_modify exclude group clump8 clump8
neigh_modify exclude group clump9 clump9

thermo 100

dump 1 all atom 50 post/dump*.rigid

#dump 1 all image 100 image.*.jpg type type &

axes yes 0.8 0.02 view 60 -30

#dump_modify 1 pad 5

timestep 0.0001
thermo 50
run 10000

Dear users,

I met the following error when I tried to run the simulation "rigid" in the
example file of lammps. I checked the manual and the mailing list, this
error seems to be caused by missing package. I think here the "invalid fix
style" is talking about "rigid", but I installed the package RIGID and
compiled it by using "make openmpi", which is successful. But I still get
the following error message. I am using opensuse 12.3, 64 bit, the lammps
package is the version updated in 2013/10/29. Any idea what package am I
missing too?

you should first check, if you have the right executable and if it
really contains the rigid package. you can do that with "lmp_openmpi
-h"
it should print out all styles that are available in this specific executable.

alternately, you can download/install a suitable precompiled
executable also from here:
http://git.icms.temple.edu/rpm/ or rather
http://git.icms.temple.edu/rpm/suse/12.3/index.html (if you don't like
to enable the repository as such)

axel.