diff --git a/docs.it4i/salomon/resources-allocation-policy.md b/docs.it4i/salomon/resources-allocation-policy.md index c9869a5018972c2dc59a0ecf410da5f575573626..6b7bdbe4624bf4ac954fd968dd1a83f309064485 100644 --- a/docs.it4i/salomon/resources-allocation-policy.md +++ b/docs.it4i/salomon/resources-allocation-policy.md @@ -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