Main Page Using the Interface Sample Output
What you need to run this model
a. Unix or Macintosh platform
This model does not run in Windows, yet. This may change soon if Garnet is successfully ported to the Windows environment.
b. Lisp interpreter
I use CMUCL 18c on Solaris and Mac Common Lisp 4.3 on Macintosh. The only limiting factor on what Lisp you can use (that I am aware of) is that it must be able to interface with Garnet.
c. Garnet graphics library
Go to http://www-2.cs.cmu.edu/Groups/garnet/ for instructions related to obtaining and setting up Garnet.
d. ACT-R 4.0
Available from http://act.psy.cmu.edu/ACT-R_4.0/
e. The model files
Here is a list of the ACT-R/A/C files, avaliable from acs.ist.psu.edu/ACT-R_AC:
The archives ACT-R_AC.tar.gz (for Unix)
and ACT-R_AC.sit (for Mac) contain all the necessary files.
Configuring the model for your environment
Before running the model, you must first edit the paths
in the sub-loader.lisp file. Set the ACT-R 4.0, Garnet, and model directory
paths to the appropriate values.
Load the file sub-loader.lisp from the Lisp listener. This will load all of the necessary files and bring up the interface.
If you are using MCL, load the file using file->load file...
from the menu or the paddle-y keyboard shortcut. If you are using
Unix, start lisp from the model directory and type '(load "sub-loader.lisp")'
at the listener prompt.
The performance of this program varies greatly depending
on the Lisp used. As the program is configured primarily for use
within Solaris/CMUCL, when the model is run within Mac Common Lisp the
speed of execution drastically reduces the usefulness of the chunk matrix.
If this is a problem, simply set the check-delay global variable at the
top of the sub-functions.lisp file to an appropriate value, in seconds
and reload the model.
This is also handy for scripting the model (more on how to do that in Using the Interface). The check-delay variable not only affects the chunk matrix selection delay time, but also the check marks that indicate whether the model has made a correct or incorrect response. If the model is to be scripted over many iterations, setting check-delay to nil will drastically speed up the script.
If you experience any problems loading the model, please
contact Isaac Councill for assistance.
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Last modified January 20, 2002