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Year | #hosts | #cores | SLAC-units | To Buy | Buy "bullets" | Cost |
|---|---|---|---|---|---|---|
2013 | 729 | 7164 | 90698 | 18.5k | 1.3k | 500 |
2014 | 427 | 4848 | 65476 | 25.2k | 1.8k | 700 |
2015 | 179 | 2864 | 40067 | 25.4k | 1.8k | 700 |
2016 | 179 | 2864 | 40067 | - |
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2017 | 179 | 2864 | 40067 | - |
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Basically by the end of 2014, all hardware before the bullet purchase would have been retired.
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Year | #hosts | #cores | SLAC-units | To Buy | Buy "bullets" | Cost |
|---|---|---|---|---|---|---|
2013 | 729 | 7164 | 90698 | 18.5k | 1.3k | 500 |
2014 | 652 | 6568 | 83744 | 7k | 0.5k | 200 |
2015 | 575 | 5968 | 76736 | 7k | 0.5k | 200 |
2016 | 499 | 5376 | 69789 | 7k | 0.5k | 200 |
2017 | 420 | 4792 | 63039 | 7k | 0.5k | 200 |
2018 | 337 | 3944 | 52183 | 11k | 0.8k | 300 |
Summary
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Projections for PPA's cycles needs for the next few years are flat at 90k allocation units average. We expect the current capacity to be saturated for at least two years due to Fermi reprocessing and simulations needs for Pass8. It is still early for LSST to be needing serious cycles. It would be prudent to have some headroom, hence we recommend a 20% increase for peak bursts, taking us to a need for 109k allocation units.
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