Update resources-allocation-policy.md

docs.it4i/salomon/resources-allocation-policy.md

@@ -118,20 +118,28 @@ The wall-clock core-hours (WCH) are the basic metric of computer utilization tim
 1 wall-clock core-hour is defined as 1 processor core allocated for 1 hour of wall clock time. Allocating a full node (24 cores)
 for 1 hour amounts to 24 wall-clock core-hours.
 
-### Standardized Core-Hours (SCH)
+### Standard Core-Hours (SCH)
 
-The resources that are currently subject to accounting are the standardized core-hours (SCH).
-The standardized core-hours are obtained from WCH by applying a standardization factor.  
+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.  
 SCH = F*WCH  
 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.
 
 | System                          | F   | validity |
 | ------------------------------- | -   | -------- |
-| Salomon                         | 1.00 |  2017-09-40 to 2018-01-01 |
-| Anselm                          | 0.65 |  2017-09-40 to 2018-01-01 |
+| Salomon                         | 1.00 |  2017-09-40 to 2018-06-01 |
+| Anselm                          | 0.65 |  2017-09-40 to 2018-06-01 |  
 
-The 
+
+
+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. 
+
+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.
 
 ### Check Consumed Resources