Test MAPS with a simple example

Change to a directory of your choice (preferably empty) and type

cp atat/examples/cuau.in lat.in

maps -d &

Maps is running and waiting for a signal. Type

touch ready

to indicate that you are ready to for maps to generate a structure. Maps replies Finding best structure... To find the structure just created, wait for done to appear and type:

ls */wait

to observe that directory 0 has been created. This directory contains a file str.out which describes the structure whose energy needs to be calculated. The file wait is just a flag that allows you to find the newly created directory. Let's pretend that we have computed the energy of that structure. We need to let maps know about it. Type, for instance:

echo 1.1 > 0/energy (If 1.1 is the energy of the structure.)

rm 0/wait

Maps responds by Finding best cluster expansion..., followed by done. You can repeat the process (touch ready, etc.) to add more structures. Maps will update the current cluster expansion every time a new energy becomes known. (By default, maps checks every 10 sec.). For a description of the output files, type:

maps -h | more

or refer to section 7 A nice utility called mapsrep allows you to plot the results using gnuplot. To stop maps cleanly, type: touch stop

Suggestion: to clarify the output of the program, it is recommended that you run maps in one terminal window and type all other command in another terminal window.