Overview

Contents

A list of commands and notes on using available clusters for parallelized algorithms.  Typically used for TxBR backprojection by uploading a copy of a (combined) .txbr file and a (combined) .preali.rot.SL file to the desired cluster and running a batch script.  The batch script typically has the .pbs extension.

Available Clusters

  1. NBCR Cluster
  2. Triton Cluster at SDSC

Cluster Commands

Frequently used commands

A detailed list and description of the Triton cluster commands can be found at:

http://tritonresource.sdsc.edu/jobs.php

The most used commands will be:

  • qsub  (submit a .pbs script to the cluster)
  • qstat (check on status of submitted jobs)
  • qdel (delete job on queue)
Submitting a job

Use qsub after creating a .pbs script file in the data directory.  Script files can be modified by previously created .pbs files or follow the instructions on the Triton cluster site.

Warnings / Cautions!

  • If the data is an 8k x 8k image set, make sure the .txbr file block size is set to 1 instead of the default 5, otherwise segmentation faults will occur on the NBCR cluster
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