forked from lijiext/lammps
65 lines
1.3 KiB
Plaintext
65 lines
1.3 KiB
Plaintext
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# 3d Lennard-Jones melt with Python functions added
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units lj
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atom_style atomic
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lattice fcc 0.8442
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region box block 0 10 0 10 0 10
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create_box 1 box
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create_atoms 1 box
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mass 1 1.0
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velocity all create 1.44 87287 loop geom
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pair_style lj/cut 2.5
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pair_coeff 1 1 1.0 1.0 2.5
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neighbor 0.3 bin
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neigh_modify delay 0 every 1 check yes
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fix 1 all nve
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run 10
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# 1st Python function
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# example of catching a syntax error
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python simple here """
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def simple():
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import exceptions
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print "Inside simple function"
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try:
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foo += 1
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except Exception, e:
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print "FOO error:",e
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"""
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python simple invoke
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# 2nd Python function
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# example of returning the function value to a python-style variable
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# invoke it twice
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variable fact python factorial
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python factorial input 1 v_n return v_fact format ii here """
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def factorial(n):
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if n == 1: return 1
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return n*factorial(n-1)
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"""
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variable n string 10
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python factorial invoke
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print "Factorial of $n = ${fact}"
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variable n string 20
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python factorial invoke
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print "Factorial of $n = ${fact}"
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# 3rd Python function
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# example of calling back to LAMMPS and writing a run loop in Python
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variable cut string 0.0
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python loop input 4 10 1.0 -4.0 SELF format iffp file funcs.py
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python loop invoke
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