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Commit 0f609d0a authored by Branislav Jansik's avatar Branislav Jansik
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Update resources-allocation-policy.md

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6 merge requests!368Update prace.md to document the change from qprace to qprod as the default...,!367Update prace.md to document the change from qprace to qprod as the default...,!366Update prace.md to document the change from qprace to qprod as the default...,!323extended-acls-storage-section,!196Master,!159Bjansik
......@@ -121,27 +121,27 @@ for 1 hour amounts to 24 wall-clock core-hours.
### Standard Core-Hours (SCH)
The resources that are currently subject to accounting are the standard core-hours (SCH).
The standard core-hours are obtained from WCH by applying a standardization factor.
The standard core-hours are obtained from WCH by applying a standardization factor:
---8<--- "sch_formula.md"
The accounting runs whenever the computational cores are allocated or blocked via the PBS Pro workload manager (the qsub command), regardless of whether
the cores are actually used for any calculation. See example in the [Job submission and execution](job-submission-and-execution/) section.
the cores are actually used for any calculation. All jobs are accounted in standard core hours, using factor F valid at the time of the execution:
| System | F | validity |
| ------------------------------- | - | -------- |
| Salomon | 1.00 | 2017-09-40 to 2018-06-01 |
| Anselm | 0.65 | 2017-09-40 to 2018-06-01 |
The allocations are requested/granted in standard core-hour SCH.
All executions are accounted in standard core hours, using factor F valid at the time of the execution.
In future, the factors F will be updated, as new systems are installed. Factors F are expected to only decrease in time.
Whenever the term core-hour is used in this document, we mean the standard core-hour, SCH.
The standard core hours were introduced to treat systems of different age on equal footing.
Modern systems have more powerful processors, more work can be done in one WCH compared to legacy systems.
Standard core hour is an accounting tool to discount the legacy systems.
In future, the factors F will be updated, as new systems are installed. Factors F are expected to only decrease in time.
See examples in the [Job submission and execution](job-submission-and-execution/) section.
### Check Consumed Resources
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