MUSIC Tutorial

GCMC Control file

The control file can be found in the music/ctrlfiles directory, copy it into your GCMC folder and we will customise it for our own needs.
The text in red are helpfull tips, the actual control file has help comments in it.

The first few sections are pretty much the same as the map control file.



------ General Information ------------------------------------------  
Methane in IRMOF1       just a short description of the simulation for you  
1000000                         number of iterations 
100000                          number of steps between writes to screen / logfile              
100000                          number of steps between writes to *.res file                 
5000                              number of steps between writes to *.con file                
1                                    start numbering files from                    
91283                             seed for random number gneerator                
1                    
Methane.IRMOF1.res             base name for restart files         
Methane.IRMOF1.con             base name for config files (this is where all the information of the simulation in binary form) 
------ Atomic Types -------------------------------------------------- 
5                         

Methane 
Methane.atm

Carbon
Carbon.atm
		     
Oxygen
Oxygen.atm

Hydrogen
Hydrogen.atm

Zinc
Zinc.atm                
------ Molecule Types -------------------------------------------------
2                    
                                                                    
Methane
Methane.mol

IRMOF1
IRMOF1.mol
------ Simulation Cell Information ------------------------------------
IRMOF1
1, 1, 1              
1, 1, 1              
------ Forcefield Information -------------------------------------------
BASIC                
SPC                  
A-A-inter	          Atom-Atom interaction file 
M-M-inter		  Molecule-Molecule interaction file 
Intra			     Intramolecular interactions file 
------ Ideal Parameters -----------------------------------------------
Ideal
1
Methane
------ GCMC Information -----------------------------------------------  This is where the control file for GCMC differs alot from the pmap
1
343.0
Ideal Parameters
1
100
1
          -------------------------
Methane
[fugacity file name]              		Create a file with a list of fugacities in your gcmc folder and put its name here 
Null               
4                  		This is the number of GCMC move types - insert, translate (move), rotate, delete 
1.0, 1.0, 1.0, 1.0 		This puts weights on the moves, it should usually just be 1. There should be as many numbers here as you specified in the above line
BINSERT            		The moves should be listed with information on some 
IRMOF1.Methane.pmap   	This is the pmap file name that you created earlier and should be in the folder you specified in the environment file 
300                		The temperature the simulation is to be run 
BDELETE            		If are useing molecules modelled as solid spheres you may not need to rotate them and 4 should be changed to 3 above 
RROTATE
0.2, 0
RTRANSLATE
0.2, 0
------ Configuration Initialization -------------------------------------
Methane
GCMC
IRMOF1
FIXED NULL
--------  Main Datafile Information -------------------------------------
Energy, position, Velocity, pair_energy 

An example of GCMC CONTROL FILE