Test Altair Accelerator

You may wish to run a few simple jobs to confirm that the system is running properly.

1. Submit a simple job with the following commands:

   % nc run sleep 30
   Resources= linux
   Env      = SNAPSHOT(vnc_logs/envjohn36829.csh)
   Command  = sleep 30
   Logfile  = vnc_logs/20020602/105731.27873
   JobId    = 00002539
   nc: message: Scheduled jobs: 1       Total estimated time: 0s

   • The JobId in this example is 2539. The leading zeros are insignificant.
   • The environment used for the job execution is a snapshot of the current environment, stored in the file vnc_logs/envjohn36829.csh
   • The default resource list for the job is linux which, in this example, is the platform from which the job was submitted. Later, you will learn how to control the resources assigned to a job.

   Note: If the following dialog appears, see Qualify the Working Directory of Jobs.

    WARNING:
     The current directory '/export/scratch/john' may not be a valid directory path for all hosts in the cluster.
   
     EXPLANATION:
   
     If the job runs on a host other than the local node, and the current directory is not shared on that host, unpredictable results may occur.
   
     OPTIONS:
       (1)   Continue.
             By choosing this option, you assert that the path
             is valid everywhere.  If it is not, the job is likely
             to fail, because the remote host cannot reach
             the current directory.
             This option causes the creation of a flag file
             called   .vnc    which has the purpose of
             avoiding the repetition of this question for this
             directory and its subdirectories
       (2)   Abort.
             Please ask your Accelerator administrator to
             change the equiv.tcl file to define the rules that
             give a logical name to the current directory.
   
      Please reply: [1,2] >

2. Check the status of the job:

   % nc list
   00002539 Done    sleep 10
   % nc summary
   ...output omitted
   % nc info 2539
   Id,User,Group   00002539,john,users
   Environment     SNAPSHOT(vnc_logs/envjohn36829.csh)
   Directory       ${HOMES}/john
   Command         sleep 10
   Status          Running
   Host         alpaca
   Resources    linux
   QueueTime    0s
   RunningTime  9s

3. Check the output of the job, which in this case is empty, since it is the output of sleep.

   % nc info -l 2539
   Log file is: '${HOMES}/john/vnc_logs/20020602/105731.27873'

4. Rerun the job.
   The first time Accelerator notices that the job is already Done (=VALID) so it does not run it again. The second time, the option -f forces Accelerator to rerun the job even if it is already Done.

   % nc rerun 2539
   nc rerun 00002539
   nc: message: Not rerun: 00002539
   % nc rerun -f 2539
   nc: message: Job 00002539 is already VALID.
   nc: message: Scheduled jobs: 1       Total estimated time: 15s

5. Stop the running job. The job will fail.

   % nc stop 2539

6. Forget the job:

   % nc forget 2539
   nc: message: Forgetting 1 jobs

7. Get a quick report:

   % nc summary
   Accelerator Summary For User john
   TOTAL JOBS        105      Duration: 4m17s
   Failed             53
   Queued             50
   Idle                2
   
   JOBS   GROUP    TOOL        WAITING FOR...
   50   pi       vtclsh     'hpux#1 '