This will be the name of the directory where all the input/output files are kept. The jobname must be a string of characters, and must not include spaces or special characters that may not get parsed correctly via the web browser. If you reuse a jobname, all the existing data under that job will be over-written. Therefore, be as imaginative as possible when coming up with a job name. This will ensure that you are not over-writing someone elses job, as well as ensuring that someone else will not over-write your job. If two people simultaneously work under the same jobname, the output file can become corrupted. You will need to remember the job name in order to access the files later.
Pressing Save will save all the data on the screen under the given job name, but it will not execute the program.