Re: [HTCondor-users] about START and RANK

["jiangxw@xxxxxxxxxxxxxxx" <jiangxw@xxxxxxxxxxxxxxx>]

Dear John,

    Thanks.  As your reply I see the meaning of START and RANK.

    We used START and RANK in the same startds.   

    Dose negotiator  use START and RANK in some ordor when choose these startds.

    START first or RANK first?

    We got a problem as follow:

        START = TARGET.AcctGroup == "A" || TARGET.AcctGroup =="B" ||  TARGET.AcctGroup =="C"

        RANK = TARGET.AcctGroup =="C"

    As above,  we  want the startd prefer the job with AcctGroup "C".

    But we found more jobs with B scheduled to these startd.

    There's no quota limits, dose START cause it?  

Cheers,

Jiang Xiaowei

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NAME：Jiang Xiaowei

MAIL：jiangxw@xxxxxxxxxxxxxxx

TEL：010 8823 6024

DEPARTMENT：Computing Center of IHEP

 

From: John M Knoeller

Date: 2016-11-03 01:13

To: HTCondor-Users Mail List

Subject: Re: [HTCondor-users] about START and RANK

If A is true, then START is true B and C will never be evaluated.

 

START is a Boolean result that indicates whether a STARTD is willing to run a given job or not

RANK is an number that Indicates which jobs a STARTD would prefer. (higher is better)

 

Depending on other configuration, a STARTD may choose to preempt a job that it is currently running in order to run a job that it gives a higher RANK to.  The actual decision to preempt or not happens in the negotiator, which uses the RANK value published by the STARTD in its decision

 

From: HTCondor-users [mailto:htcondor-users-bounces@xxxxxxxxxxx] On Behalf Of jiangxw@xxxxxxxxxxxxxxx
Sent: Wednesday, November 2, 2016 9:38 AM
To: htcondor-users <htcondor-users@xxxxxxxxxxx>
Subject: [HTCondor-users] about START and RANK

 

Dear all,

   

    I have a quetion about START.

    Example:

         START = A || B || C

    if A == True,  does condor calculate  B and C continuely, or condor judge the START is True without considering B and C.

    Besides， what's the difference between START and RANK.

 

    Thanks for help.

 

Cheers,

Jiang xiaowei

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NAME：Jiang Xiaowei

MAIL：jiangxw@xxxxxxxxxxxxxxx

TEL：010 8823 6024

DEPARTMENT：Computing Center of IHEP