4 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
The wall-clock core-hours (WCH) are the basic metric of computer utilization time.
The wall-clock core-hours (WCH) are the basic metric of computer utilization time.
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)
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).
for 1 hour amounts to 16 wall-clock core-hours (Anselm) or 24 wall-clock core-hours (Salomon).
## Normalized Core-Hours NCH
### Normalized Core-Hours NCH
The resources subject to accounting are the normalized core-hours (NCH).
The resources subject to accounting are the normalized core-hours (NCH).
The normalized core-hours are obtained from WCH by applying a normalization factor:
The normalized core-hours are obtained from WCH by applying a normalization factor:
...
@@ -41,7 +41,7 @@ In future, the factors F will be updated, as new systems are installed. Factors
...
@@ -41,7 +41,7 @@ In future, the factors F will be updated, as new systems are installed. Factors
See examples in the [Job submission and execution][1] section.
See examples in the [Job submission and execution][1] section.
## Consumed Resources
### Consumed Resources
Check how many core-hours have been consumed. The command it4ifree is available on cluster login nodes.
Check how many core-hours have been consumed. The command it4ifree is available on cluster login nodes.
