Update resource_accounting.md

docs.it4i/snippets/resource_accounting.md

@@ -6,16 +6,16 @@ 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 (16 cores Anselm,  24 cores Salomon)
 for 1 hour amounts to 16 wall-clock core-hours (Anselm) or 24 wall-clock core-hours (Salomon).
 
-### Standard Core-Hours SCH
+### Normalized Core-Hours NCH
 
-The resources subject to accounting are the standard core-hours (SCH).
-The standard core-hours are obtained from WCH by applying a standardization factor:
+The resources subject to accounting are the normalized core-hours (NCH).
+The normalized core-hours are obtained from WCH by applying a normalization factor:
 
 $$
-SCH = F*WCH
+NCH = F*WCH
 $$
 
-All jobs are accounted in standard core-hours, using factor F valid at the time of the execution:
+All jobs are accounted in normalized core-hours, using factor F valid at the time of the execution:
 
 | System                          | F   | Validity |
 | ------------------------------- | -   | -------- |
@@ -28,11 +28,12 @@ the cores are actually used for any calculation.
 
 
 !!! note
-    *The allocations are requested/granted in standard core-hours SCH.
-    *Whenever the term core-hour is used in this documentation, we mean the standard core-hour, SCH.
+    *The allocations are requested/granted in normalized core-hours SCH.
+    
+Whenever the term core-hour is used in this documentation, we mean the normalized core-hour, NCH.
 
-The standard core-hours were introduced to treat systems of different age on equal footing.
-Standard core-hour is an accounting tool to discount the legacy systems. The past (before 2017-09-11) F factors are all 1.0.
+The normalized core-hours were introduced to treat systems of different age on equal footing.
+Normalized core-hour is an accounting tool to discount the legacy systems. The past (before 2017-09-11) F factors are all 1.0.
 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.
@@ -46,14 +47,14 @@ $ it4ifree
 
 Projects I am participating in
 ==============================
-PID         Days left      Total    Used WCHs    Used SCHs    WCHs by me    SCHs by me     Free
+PID         Days left      Total    Used WCHs    Used NCHs    WCHs by me    NCHs by me     Free
 ----------  -----------  -------  -----------  -----------  ------------  ------------  -------
 OPEN-XX-XX  323                0      5169947      5169947         50001         50001  1292555
 
 
 Projects I am Primarily Investigating
 =====================================
-PID         Login         Used WCHs    Used SCHs
+PID         Login         Used WCHs    Used NCHs
 ----------  ----------  -----------  -----------
 OPEN-XX-XX  user1            376670       376670
             user2           4793277      4793277
@@ -61,6 +62,6 @@ OPEN-XX-XX  user1            376670       376670
 Legend
 ======
 WCH   =    Wall-clock Core Hour
-SCH   =    Standard Core Hour
+NCH   =    Normalized Core Hour
 ```
 The **it4ifree** command is a part of it4i.portal.clients package, located here: <https://pypi.python.org/pypi/it4i.portal.clients>
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