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During our recent test period of Sol in November, researchers confirmed that the new system's hardware and base configuration fully enables the proper functioning of all the software they currently depend on within Helios.
However, the testing also uncovered important information that we could not have learned without this testing investment, which in turn will contribute to a more robust setup for researchers. For example, Lulu has installed the Intel compiler in the /software/ directory, with the proper, legal licensing.
Upcoming to do's for Hoffmann researchers, as of 12/9/13:
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(1) As soon as possible, ensure researchers' temporary, test user data on Sol can be completely deleted.
- We will be deleting the content within everyone's test home directories on Sol. (They were originally copied there as a testing convenience during our test phase.)
- We do this deletion before the final copy to enable ensure a clean import of researchers' current production home directories from Helios.
- Lulu advised researchers of this from step before the Thanksgiving break, so hopefully no surprises.
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2) On a predetermined date, researchers will stop having access to Sol until it goes into production, replacing Helios.
- Tasks for Hoffmann group, which don't need to be completed when the Sol cluster is put into production:
- The Hoffmann group (Prasad?) should install the Materials Studio software in the /data/ Hoffmann/bin/ directory. If Prasad is not available to do this, let's discuss our options- thank you
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- Ad hoc permission to select researches (Prasad?) will be granted so they may install software in the correct location and test their software.
- Tasks for ChemIT to do:
- Get the server's versioning hard disk recognized within the new head node.
- Lulu to install the Intel compiler in the /software/ directory, with the proper licensing.
- The Hoffmann group (Prasad?) to install the Materials Studio software in the /data/ Hoffmann/bin/ directory. If Prasad is not available to do this, let's discuss our options- thank youEnsure central software is installed properly and legal.
3) On a predetermined date, researchers must plan for 1-2 days of downtime for Helios (
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and before Sol is
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available).
Sol will still be unavailable to researchers. Thus, during this period when Helios, too, is turned off (to allow for its final set up), both Sol and Helios will be off-line to researchers.
- We obviously must coordinate this cut-over date to ensure no loss of researcher's production data and to minimize the inconvenience of the downtime.
- During this time we , ChemIT will copy researchers' production home directory data from Helios to Sol.
4)
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About 1-2 days after Helios's shut down (3, above), Sol will be again be available and in
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production capability to researchers.
With Sol in productionDuring this transitional period, ChemIT will:
- Add the older compute nodes from Helios, making Sol more and more powerful.
Some time after Sol is in production:
- Once Sol is confirmed "good" (that is, there is no need to "roll back" to using Helios due to some failure), HelioHelios's head node can be added as a compute node to Sol.
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