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During testing, there is a new and an old cluster available to you at the same time.

QuickStart info

• Thus, you will be able to log into two different home directories, within two completely different systems:

  • scheraga.chem.cornell.edu

  • matrixtest.scheraga.chem.cornell.edu

• Your account and password on the new Matrix are the same as the old Matrix.
• Continue to use the old Matrix cluster for your production research work.
• Use the new cluster ONLY to confirm it will work for you once we cut-over from the old Matrix. Do not use it for production research.
  • Interruptions to the new Matrix during this testing phase may occur at any time, with no advanced warning.

Detailed info, particularly if QuickStart above is insufficient

Elaborate on "We will provide a second email with instructions for getting to the new cluster and setting up your home directory, and how storage is set up."

Particulars you need to know about new Matrix cluster, for testing:

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• Matrix end-user application information

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Other details

• See the storage chart for more details on disks & partitions in the new cluster, and how that compares to the old Matrix.
  • All research applications are installed under “/software”.
  • See section above, "How is the new Fall 2014 Matrix different than the old Matrix?", for details.
• Info on the nodes on the new Matrix which are available during testing.
  • See chart with full details:
    
    • Matrix compute nodes
  • Summary info, true during Phase Two testing:
    
    • Initially about 16 nodes will be made available to all researchers.
      • This represents the newly purchased nodes and two of each type of old node.
      • There are 8 new compute nodes (m108-m115) accessible. Each new node has 20 cores available.
    • For testing, select old Matrix
  compute nodes
  • • nodes will be moved to the new Matrix to ensure adequate computing capacity during testing.
    • During testing, GPU's are not available in the new cluster.
• Queuing information
  • No Express queue available for testing.
    • An Express queue will be provisioned when new Matrix is in production.
  • The default queue is dque instead of express as the node is not available for express queue
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Other details

• See the storage chart for more details on disks & partitions in the new cluster, and how that compares to the old Matrix.
  • All research applications are installed under “/software”.

Important notes in WHAT DATA IS ERASED after testing. And what data is saved after testing.

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