Re: [GridSim-users] Simulating Grid Resources with Failures

[Eran C. W. <era...@gm...>]

Hi Augustin,

Thanks for the reply. I played a little bit with these params, but was not
successful. Since this is an example to demo resource failures, I thought
the given numbers will make some resources to fail automatically in this
test.

Thanks,
Eran Chinthaka Withana


2010/12/10 Agustín Caminero Herráez <ag...@ds...>

>  Hi Eran,
>
>
> On 12/05/2010 07:12 AM, Eran Chinthaka Withana wrote:
>
> Hi,
>
>  I increased the number of gridlets to 50 and ran the first two example
> programs found under ResourceFailure examples. But all the gridlets were
> marked as success, after the simulation. How can I make some of the gridlets
> to fail?
>
> Just modify the parameters of the distributions that define the failure
> pattern. In ResFailureEx01.java u have a brief explanation of this:
>
>             // HyperExponential: mean, standard deviation, stream
>             // how many resources will fail
>             HyperExponential failureNumResPattern =
>                     new HyperExponential(totalMachines / 2, totalMachines,
> 4);
>
>             // when they will fail
>             HyperExponential failureTimePattern =
>                     new HyperExponential(25, 100, 4);
>
>             // how long the failure will be
>             HyperExponential failureLengthPattern =
>                     new HyperExponential(20, 25, 4); // big test: (20, 100,
> 4);
>
>             // creates a new Regional GIS entity that generates a resource
>             // failure message according to these patterns.
>             RegionalGISWithFailure gis = new
> RegionalGISWithFailure(gisName,
>                               link, failureNumResPattern,
> failureTimePattern,
>                               failureLengthPattern);
>
> Regards,
>
> Agustin
>
>
>  I assume these examples help to simulate a grid with resource failures.
> Also it will be nice if you can help me to understand how I can control the
> parameters to control resource failures in the simulations.
>
>  Thanks,
> Eran Chinthaka Withana
>
>
> ------------------------------------------------------------------------------
> What happens now with your Lotus Notes apps - do you make another costly
> upgrade, or settle for being marooned without product support? Time to move
> off Lotus Notes and onto the cloud with Force.com, apps are easier to build,
> use, and manage than apps on traditional platforms. Sign up for the Lotus
> Notes Migration Kit to learn more. http://p.sf.net/sfu/salesforce-d2d
>
>
> _______________________________________________
> Gridsim-users mailing list
> Gri...@li...https://lists.sourceforge.net/lists/listinfo/gridsim-users
>
>
> --
> Dr. Agustin Caminero
> Assistant Professor
> Dept. of Communication and Control Systems
> The National University of Distance Education
> Madrid. SpainE-Mail:acc...@sc...
> Phone: +34 913 989 468http://www.uned.es
>
>