Introduction

• The Cedar Linux Cluster is a distributed memory multi-processor system. Each node of the cluster contains two 2-GHz AMD Opteron processors with 1024KB of cache (per cpu) and 2 GB of RAM (per node). The nodes are interconected with Gigabit Ethernet (60-110 Mbytes/sec bandwidth, 50-200 usecs latency).
• In the default queue, a maximum of 72 cpus may be used by a single user at at time, which can be spread over a maximum of 36 jobs.
• The maximum time permitted for a single job is 168 hours.
• A test queue (testq) is also available for testing and debugging purposes; this queue has a wall-time limit of one hour and a cpu limit of 4, which can be employed in up to 3 simultaneous jobs.
• The Cedar Linux cluster uses ROCKS as its operating system and the Portable Batch System (PBS) software to distribute the computational workload across the nodes. PBS is a batch job scheduling application that provides the facility for building, submitting and processing both serial and parallel batch jobs on the cluster.
• PBS User's Guide

Useful Links

• Cedar Cluster Status
  Ganglia Toolkit for displaying cluster load and status information.
• Cedar Queue Status
  Displays jobs in the queue. Click on the link for a given job ID to get complete information about that job.
• PBS Script Generator
  Generates PBS scripts based on user input to a form.

PBS Documentation

• PBS Pro User's Guide