next up previous contents index
Next: The Output Up: Running SNAP Previous: Running SNAP

Executing the SNAP Code

Once you have created a SNAP.DAT file in your SNAP subdirectory you can execute SNAP with either of the procedures DOSNAP or SNAP. You will generally want to use DOSNAP and specify that SNAP\ run in a batch queue. Both procedures generate and archive plots using SNAPSUM which is described in Section 5.3. Do not execute these procedures on more than one node at a time.

If you have created one or more SNAP.DAT files, to run SNAP on all of them, do:
      $ DOSNAP <your initials> <printer> <batch_queue_or_X>
With DOSNAP you can execute the SNAP code either interactively or as a batch job by setting the value of the third parameter to either X or a particular batch queue. If you don't specify the parameters on the command line, DOSNAP will prompt you for them.

DOSNAP invokes SNAPSUM (Section 5.2) to generate 2-4 pages of graphs. If you select the HL1 printer (located in B235) it will print all the graphs on a single sheet of paper (4-up).

DOSNAP uses the directory TFTR_SNAP: to write the batch job log file and a copy of the SNAP.DAT file where they are kept for one week. To see if you have quota on that disk, do $ SHOW QUOTA/DISK=UTIL/USER=yourname. Please contact Lena Scimeca ( if you need quota.

To run SNAP interactively:
      $ SNAP <your initials>

The bulletin bulletin snap contains information about each new version of SNAP. SNAP was written by Harry Towner and is maintained by Marilee Thompson.

Marilee Thompson
Fri Jul 11 15:18:44 EDT 1997