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- See section below, "Important notes in what data is erased. And what data is saved."
Notes, to get you started and keep you going
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.
- See section below, "Get access to your account", within the "(2) Information relevant for testing and after testing" section.
- 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:
Your home directories, "/users/netID", are basically EMPTY of your files to start.
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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.
- Get info on the nodes on the new Matrix which are available during testing.
- See chart with full details:
- Summary info, true during Phase Two testing:
- Initially about 18 nodes will be made available to all researchers.
- This represents the newly purchased nodes and two of each of 5 types of old node.
- There are 8 new compute nodes (m108-m115) accessible. Each new node has 20 cores available.
- For testing, select old Matrix 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.
- However, 2 of their nodes will be running as just CPU nodes.
- Initially about 18 nodes will be made available to all researchers.
- See chart with full details:
- 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 no node has been assigned to be available for Express queue.
- No Express queue available for testing.
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