Added a README text file

git-svn-id: svn+ssh://simcity.usask.ca/Users/svn/pythODE/pythODE++@21204 95d1ee44-5033-4e26-b979-e748c727a777

Author: jlipoth

README.txt

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+To run pythODE++
+1) Ensure that pythODE++ is checked out under your /home/user directory. If it isn't, the scripts will not execute
+2) In this same directory, build the program by executing the build script: ./build
+3) Navigate back to your /home/user directory. Create a file called hostfile. The format for the file is as follows:
+hostname slots=(Insert number of processes here) max_slots=(Insert number of processes here)
+This file tells MPI which nodes to run on, with how many processes on each node. For example
+moler slots=12 max_slots=12
+would run the scripts on the moler head node with 12 processes.
+4) navigate to the pythODE++/scripts directory. To run a script, execute the run-experiment.sh file, and enter the name
+of the script you want to run *without* the .py extension:
+./run-experiment.sh brusselator-experiment
+
+For more information on the format of the experiment scripts, see the tutorial under the scripts directory.