Read dump doesn't import the atoms

LAMMPS LAMMPS General Discussion
1

I imported atoms into my system with a read_dump command but the outcome was
Reading snapshot from dump file …
orthogonal box = (0 0 0) to (2 2 2)
0 atoms before read
32 atoms in snapshot
0 atoms purged
0 atoms replaced
0 atoms trimmed
0 atoms added
0 atoms after read

and I don’t get why the atoms weren’t added. I seem to remember I was able to use the dump command to read a .lammpstrj file snapshot and use it as my system geometry

the input:

---------- Initialize Simulation ---------------------

clear
units metal
dimension 3
boundary p p p
atom_style atomic

#-----------------
lattice fcc
region box block 0 2 0 2 0 2 units lattice
create_box 2 box
mass 1 100
mass 2 100
#-----------------
read_dump bestcorr.lammpstrj 1 type x y z box yes replace yes
variable natoms equal count(all)
print “$(v_natoms)”

and the print commant printed 0

the dump file is attached.
Thank you in advance
bestcorr.lammpstrj (1.2 KB)

2

Your read_dump command says replace yes (even though replace yes is the default setting), but there are no atoms to replace. On the other hand, it doesn’t say add yes (where add no is the default setting). So the command seems to be acting exactly as documented.

3

thank you, I had somehow missed that option