[gridengine users] Halftime parameter in scheduler configuration
sgowtham at mtu.edu
Wed Jun 13 21:05:14 UTC 2012
Thank you, kind Sir!
Information Technology Services
Michigan Technological University
On Wed, 13 Jun 2012, Reuti wrote:
| Am 13.06.2012 um 22:27 schrieb Gowtham:
| > I have been reading about the halftime parameter
| > in scheduler configuration (qconf -ssconf) and
| > I understand that the value of this parameter
| > decides "how fast the grid engine system forgets
| > the information about user's consumption of
| > resources".
| > Also, I understand that that smaller value of
| > halftime implies that the system quickly forgets
| > user's consumption and as such, reduces the impact
| > of such (over/under) consumption.
| > I have the following questions:
| > 1. From 'qconf -ssconf', I see that halflife
| > has a value of 168 - is this in hours, days?
| please have a look at `man sched_conf`.
| > If hours (or days), does this begin at a certain
| > time every week/month/year or is this a rolling
| > value (meaning, past 168 units of time)?
| > 2. If I have a 'public usage cluster' and want
| > to make sure my users get a fair share of
| > resources (no one is more special than anyone,
| > since none of them shared the $$ of building
| > this cluster) over a period 1 year, what should
| > be a practical value of halflife parameter?
| One year is long. I would start with one or two months.
| > 3. In spite of this being a 'public usage cluster',
| > suppose that I want to reward users who consistently
| > use the facility for (meaningful) computations,
| > compared to those who use it when they feel like it.
| > For e.g., Tom and Harry both use it for the exact
| > same duration in the month of June;
| > then Tom goes away to lala land for vacation in
| > July while Harry continues to use the system at
| > the same consistent rate;
| > When Tom and Harry both submit a bunch of jobs in
| > August, I'd like Harry's jobs to have higher priority
| > than Tom's.
| Same man page: "compensation_factor".
| -- Reuti
| > What changes do I need to make to make this scenario
| > happen?
| > It'd be great if you could please point me to some resources
| > that I can use to learn these things. Thank you for your
| > time and help.
| > Best,
| > g
| > --
| > Gowtham
| > Information Technology Services
| > Michigan Technological University
| > (906) 487/3593
| > http://www.it.mtu.edu/
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