Discussion:
Fairshare points return rate
Christopher B Coffey
2014-07-11 18:03:35 UTC
Permalink
Hello,

I think I have either a configuration problem, or I am not understanding
something correctly. I have the following set for fairshare in slurm.conf:

PriorityType=priority/multifactor
PriorityDecayHalfLife=7-0


Yet, a users fairshare points, shown by sshare, do not return at the rate
that I had envisioned. The points are returning extremely slowly (many
weeks). The way I understood it was that the full share of points would
return in 7 days. In my example below, a user would have full fairshare
points when the number was 0.25.

Account User Raw Shares Norm Shares Raw Usage Effectv
Usage FairShare
-------------------- ---------- ---------- ----------- -----------
------------- ----------
root 1.000000 116705341
1.000000 0.500000
root root 1 0.500000 0
0.000000 1.000000
normal 1 0.500000 116705341
1.000000 0.250000
normal abc1 1 0.006329 0 0.012658
0.250000
normal abc2 1 0.006329 0 0.012658
0.250000
normal abc3 1 0.006329 0 0.012658
0.250000
normal abc4 1 0.006329 27021063 0.241260
0.000000
normal abc5 1 0.006329 43576 0.013027 0.240107
normal abc6 1 0.006329 0 0.012658 0.250000
normal abc7 1 0.006329 1045805 0.021506 0.094868
normal abc8 1 0.006329 3 0.012658 0.249999
normal abc9 1 0.006329 8131420 0.081451 0.000134



Also, I’m not sure I have the shares correctly configured now that I think
about it. In general fairshare priority has been working, but the points
returning issue has vexed me, thanks guys!

Chris
j***@public.gmane.org
2014-07-11 18:16:55 UTC
Permalink
Post by Christopher B Coffey
The way I understood it was that the full share of points would
return in 7 days.
Its a _HalfLife_
Post by Christopher B Coffey
Hello,
I think I have either a configuration problem, or I am not understanding
PriorityType=priority/multifactor
PriorityDecayHalfLife=7-0
Yet, a users fairshare points, shown by sshare, do not return at the rate
that I had envisioned. The points are returning extremely slowly (many
weeks). The way I understood it was that the full share of points would
return in 7 days. In my example below, a user would have full fairshare
points when the number was 0.25.
Account User Raw Shares Norm Shares Raw Usage Effectv
Usage FairShare
-------------------- ---------- ---------- ----------- -----------
------------- ----------
root 1.000000 116705341
1.000000 0.500000
root root 1 0.500000 0
0.000000 1.000000
normal 1 0.500000 116705341
1.000000 0.250000
normal abc1 1 0.006329 0 0.012658
0.250000
normal abc2 1 0.006329 0 0.012658
0.250000
normal abc3 1 0.006329 0 0.012658
0.250000
normal abc4 1 0.006329 27021063 0.241260
0.000000
normal abc5 1 0.006329 43576 0.013027 0.240107
normal abc6 1 0.006329 0 0.012658 0.250000
normal abc7 1 0.006329 1045805 0.021506 0.094868
normal abc8 1 0.006329 3 0.012658 0.249999
normal abc9 1 0.006329 8131420 0.081451 0.000134
Also, I’m not sure I have the shares correctly configured now that I think
about it. In general fairshare priority has been working, but the points
returning issue has vexed me, thanks guys!
Chris
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