ORBIT-USER: [Fwd: Reservation created for 02/01/2007] - FAIRNESS?

[Ivan Seskar]

Hi Andrea,

As you can see grid is fully booked and in order to get everybody a
chance we are trying to shuffle people around manually (rather than just
refuse slots mainly because people complained about "first come first
serve" policy). We are trying to fully automate the approval process
based on the following policy (but it will be a while before we get
there):

1) Users are expected to use ORBIT with goodwill toward other members of
the ORBIT community.  There are obvious ways to game these policies in
order to obtain a great deal of time on the grid at the expense of other
users.  Please don't.

2) ORBIT users should use the sandboxes for developing and testing their
experiments as much as possible.  Please do not use the grid until you
have seen good results from testing your experiment on a sandbox.

3) You are limited to four hours a day of pre-approved time on the main
grid.

4) Scheduling requests received before noon will be approved for the
following day at some point between noon and 2 in the afternoon.  For
example, if it is Tuesday morning before noon, and you ask for 4 to 6 in
the evening Wednesday, you will know for sure whether you have this time
by 2 in the afternoon on Tuesday.

5) Conflicts will be resolved based on how much time you've already used
over the last two weeks.  Those who have used less time will be more
likely to have their requests approved.

6) It will still be possible to request time on the grid with less than
12 hours notice.  This will be done using the informal system we have in
place now; if nobody else asks for a time slot you have requested,
you're automatically approved at the moment your time slot starts.
WINLAB staff will do their best to resolve conflicts in such scheduling,
but please do not base your plans on having such time available in
quantity.


Ivan.



-----Original Message-----
From: Andrea G Forte [mailto:andreaf at cs.columbia.edu] 
Sent: Wednesday, February 07, 2007 3:47 PM
To: Joseph F. Miklojcik III
Cc: Ivan Seskar; orbit-user at winlab.rutgers.edu
Subject: Re: ORBIT-USER: [Fwd: Reservation created for 02/01/2007] -
FAIRNESS?

Dear all,

I would like to know why my slot got changed and even though I reserved
it a while ago you assigned it to someone else. As per your email below,
users that reserve the slot first get it regardless of fairness (and
that is why last week I could only get one hour of grid time for the
whole week).
This is all very confusing, please clarify.

Thank you,
-Andrea

P.S.
I am referring to today's slot 4-6.



Joseph F. Miklojcik III wrote:
> On Wed, 2007-01-31 at 14:57 -0500, Andrea G Forte wrote:
>   
>> I would like to know what happened to my reservation for the grid for

>> tomorrow (see below)??? This week I was able to get only one slot of 
>> one hour on Monday. I do not think this is fair at all. Could anybody

>> please look into this?
>>     
>
> Hi Andrea,
>
> We're sorry you couldn't get the time slot you requested.  Mesut had 
> signed up for the time slot in question a week ago, and your request 
> was received only a day ago, so time slot was approved for Mesut.  It 
> is possible that Mesut does not need all of the time he has scheduled,

> and if you send him a personal email you may be able to work something
out.
> Thanks for your patience.
>
>