Skip to content
Snippets Groups Projects
Commit 15f8d9e8 authored by David Hrbáč's avatar David Hrbáč
Browse files

Math include

parent 6b2bf0c6
No related branches found
No related tags found
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
...@@ -114,28 +114,30 @@ Options: ...@@ -114,28 +114,30 @@ Options:
### Wall-clock Core-Hours (WCH) ### Wall-clock Core-Hours (WCH)
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 (24 cores) 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. for 1 hour amounts to 24 wall-clock core-hours.
### Standard Core-Hours (SCH) ### Standard Core-Hours (SCH)
The resources that are currently subject to accounting are the 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"
---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 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. See example in the [Job submission and execution](job-submission-and-execution/) section.
| System | F | validity | | System | F | validity |
| ------------------------------- | - | -------- | | ------------------------------- | - | -------- |
| Salomon | 1.00 | 2017-09-40 to 2018-06-01 | | Salomon | 1.00 | 2017-09-40 to 2018-06-01 |
| Anselm | 0.65 | 2017-09-40 to 2018-06-01 | | Anselm | 0.65 | 2017-09-40 to 2018-06-01 |
All executions are accounted in standard core hours, using factor F valid at the time of the execution. 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. 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. 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. Modern systems have more powerful processors, more work can be done in one WCH compared to legacy systems.
...@@ -156,3 +158,5 @@ Password: ...@@ -156,3 +158,5 @@ Password:
OPEN-0-0 1500000 400644 225265 1099356 OPEN-0-0 1500000 400644 225265 1099356
DD-13-1 10000 2606 2606 7394 DD-13-1 10000 2606 2606 7394
``` ```
---8<--- "mathjax.md"
0% Loading or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment