Thanks all
The reason I want to use the JESS/rule base is in its flexibilty to update
the attribute as publish/subscribe by using a broker.
What I means is:
I have a collection of resources attributes to be published in broker e.g. I
have a collection of hosts with different number of CPUs available and this
always changes over time- this information is updated by the monitoring
daemon in the particular resource to the centralised broker. (The resource
information will be publish into the broker as attribute+value e.g.
{RESOURCES=HARDWARE{CPU_AVAIL= 100,MEM_AVAIL=1GB}}) - how to translate this
into rules or something in JESS?
Then I have a collection of user will request for resource, let say the user
want to run a job and GET results within one hour- this request is send to
the broker. BUT the request is not related with CPU_AVAIL attributes but
rather than their own attribute such as TIME_VALUE. e.g. get me the results
within one hour.
So that, the broker will decide in which node the job should be run.
Hope this will give an overview to what I am working on.
Cheers
Mnoor
On Jan 8, 2008 4:31 PM, Jason Morris <[EMAIL PROTECTED]> wrote:
> Hi MNoor,
>
> This isn't really a Jess question, but perhaps I can help. The knowledge
> domain that you are seeking is called Operations Research. Here is a
> wikipedia reference to get you stated:
> http://en.wikipedia.org/wiki/Operations_research .
>
> An objective function is what you minimize (in the case of cost) or
> maximize (in the case of profit, output, or other positive objective) -- in
> other words, you are trying to find the values for the independent variables
> in the objective function for which its value is optimum These inputs are
> often constrained over some domains like [0 <= number_of_CPUs <= 1000].
> This optimization is an application of Linear Programming (LP). See
> http://en.wikipedia.org/wiki/Linear_programming .
>
> So, Is there a particular reason why you have to use rules to solve your
> problem? There is a whole branch of applied mathematics which is devoted to
> this exact kind of problem. Also, would you please send the *exact* wording
> of the problem you have been given? That way, I can say for certain whether
> or not an LP approach would be better.
>
> Cheers,
> Jason
>
> -----------------------------------------------------------
> Jason Morris
> Morris Technical Solutions LLC
> http://www.morris-technical-solutions.com
>
>
>
>
> On Jan 8, 2008 10:55 AM, Mohd. Noor <[EMAIL PROTECTED]> wrote:
>
> > Dear all
> >
> > What is it means by cost or objective function?
> >
> > one more things.
> > How I am going to map (using rules) between two different attributes
> > from users and resources
> > let say user need to run the job and get results in 1 hour
> > but the resource available is represented in another attribute, say, the
> > number of CPU available is 100CPUs
> >
> > How I am going to translate and map this two different definition/schema
> >
> > Regards
> >
> > mnoor
> >
>
>
>
> --
>
>
