Re: [GridSim-users] dynamic job arrivals ...

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Thanks for your help , Alexander.

Regards,

Gilberto Cunha Filho
Laborat=F3rio de Sistemas Distribu=EDdos
Universidade Federal do Maranh=E3o
Brasil

On Mon, Jan 28, 2008 at 10:30 AM, ALexander van der Kuijl <
va...@ho...> wrote:

> Hi Gilberto,
>
> No problem, glad to help.
>
> The execution time of a job depends on the size of the job (Gridlet
> length), and the characteristics of the resource executing the job.
> The faster the resource, the smaller the execution time. And the smaller
> the job, the smaller the execution time.
>
> Basically, in a space shared resource, you can calculate the execution
> time, just by dividing the length of the Gridlet/job by the speed of the
> Processing Element (PE) of the resource.
> However, you might not now the waiting time at the resource. If a job
> arrives at a resource, and no free PE is avaiable (all are busy), it is
> placed on a waiting queue. With no other information available, you can't
> calculate the waiting time. This is possible if you exactly know all the =
job
> lengths and submission times, and there is no (random) background noise a=
t
> the resource.
>
> You can configure the resource to behave exactly as you want by modifying
> the GridResource.java source file, and using the modified and compiled
> version to create the resources.
>
> Kind regards,
> Alexander
>
>
>
>
>  ------------------------------
> Date: Mon, 28 Jan 2008 08:55:52 -0300
> From: gil...@gm...
> To: ya...@hp...; ag...@ds...; va...@ho...
> Subject: RE: [GridSim-users] dynamic job arrivals ...
>
> CC: gri...@li...
>
> *
> Thanks Alexander, for your attention.
>
> and i'm sorry to take your time to read my email*.
>
>
>  On Mon, Jan 28, 2008 at 8:42 AM, ALexander van der Kuijl <
> va...@ho...> wrote:
>
> Hi Gilberto,
>
> I'm not sure if I understand your question. With conclusion time, do you
> mean the response time (time between submitting and receiving the job)?
>
> *Yes.** *
>
>
> It depends on how you design/program GridSim.
> If you know which jobs have been sent to which resource, you should be
> able to calculate the various properties of the job execution (queue time=
,
> execution time, cost, response time, etc.).
> For space shared resources, this is of course easier than for time shared
> resources.
> For 1 user you can do this within the NetUser class. Else, a central
> entity which controls the submitting of jobs to the various resources mig=
ht
> be a suitable approach.
>
> Does this answer (part) of your question?
>
>
> *Yes, :) Thanks.. but i don't understand one thing. The "Execution time"
> must be provide by user or is there other method for calculate the
> "execution time" in any resource (heterogeneous) ?*
>
>
> Kind regards,
> Alexander
>
>
> *Thanks,
>
>
> Regards,
>
>
> Gilberto Cunha*
>
>
>
>
> ------------------------------
> Date: Mon, 28 Jan 2008 08:26:36 -0300
> From: gil...@gm...
> To: va...@ho...; ya...@hp...; ag...@ds...
>
> Subject: Re: [GridSim-users] dynamic job arrivals ...
> CC: gri...@li...
>
> Hi, Yangyu, Agustin e Alexander.
>
> Thanks, for your answers.
>
> I was finding a framework for simulate any heuristics based in makespan
> for Grid.
> I found the GridSim and Alea (http://www.fi.muni.cz/~xklusac/alea/<http:/=
/www.fi.muni.cz/%7Exklusac/alea/>),
> and i read that
> the Alea builded on the top of GridSim alow the dynamic job arrivals and =
i
> didn't understand.
>
> I wanted developing heuristcs which use the "conclusion time" predicted
> for any job in any resource (e.g. Heuristic Min-min, Max-min, Sufferage).
> I have another question, in GridSim, it is possible predict the conclusio=
n
> time for job, before initiate the same? Is there some example for similar
> algorithm ?
>
> my english is not good too , Mr. Yangyu.
>
> Thanks for Attetion,
>
> Regards,
>
> Gilberto Cunha Filho
>
> Laborat=F3rio de Sistemas Distribu=EDdos
> Universisade Federal do Maranh=E3o
> Brasil
>
> On Mon, Jan 28, 2008 at 6:18 AM, ALexander van der Kuijl <
> va...@ho...> wrote:
>
> Hi Gilberto,
>
> As Agustin already mentioned, this is possible.
> It depends on your NetUser.
> You can modify the source (NetUser.java) in such a way that reflects your
> needs.
> For example, you can program that after receiving a job, a new job will b=
e
> sent.
> Or that the jobs are sent on random intervals.
>
> Kind regards,
> Alexander
>
>
>
>
> ------------------------------
>
> > Date: Mon, 28 Jan 2008 09:56:15 +0100
> > From: ag...@ds...
> > To: gil...@gm...
> > CC: gri...@li...
> > Subject: Re: [GridSim-users] dynamic job arrivals ...
>
> >
> > Hi Gilberto,
> >
> >
> > Gilberto Cunha escribi=F3:
> > >
> > > Hi! my name is Gilberto, and I 'm studyng the GridSim for simulate
> > > scheduling algorithms.
> > >
> > > I am sorry to take your time to read my email.
> > >
> > > I would like know if GridSim support dynamic job arrivals?
> > >
> > > e.g while one job is finishing...other job can be submited for the
> Grid,
> > Of course, you can do this.
> >
> > Regards,
> >
> > Agustin
> > >
> > >
> > > Regards..
> > > --
> > > Gilberto Cunha Filho
> > > gil...@gm... <mailto:gil...@gm...>
> > > LSD - Laborat=F3rio de Sistemas Distrbuidos
> > > UFMA
> > >
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> > >
> >
> > --
> > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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> > Agustin Caminero
> > PhD Student
> > Computing Systems Department
> > The University of Castilla La Mancha, Albacete. Spain.
> > Phone: +34 967 599 200 Ext. 2693. Fax: +34 967 599 343
> > http://www.i3a.uclm.es/
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> >
>
>
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> --
> Gilberto Cunha Filho
> gil...@gm...
> LSD - Laborat=F3rio de Sistemas Distrbuidos
> UFMA
>
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> --
> Gilberto Cunha Filho
> gil...@gm...
> LSD - Laborat=F3rio de Sistemas Distrbuidos
> UFMA
>
>
>
> --
> Gilberto Cunha Filho
> gil...@gm...
> LSD - Laborat=F3rio de Sistemas Distrbuidos
> UFMA
>
>
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--=20
Gilberto Cunha Filho
gil...@gm...
LSD - Laborat=F3rio de Sistemas Distrbuidos
UFMA