Re: [GridSim-users] Getting the amount of computation executed so far

[Anthony S. <an...@cs...>]

I think it resume its execution from the point where it stopped.
However, pls double check on this one for me.

anthony


On Mon, 18 Aug 2008, Vinicius Pinheiro wrote:

> Hi Anthony,
>
> Thank you! It really worked for me now. But I have one more question: when
> the gridlet is moved to another grid resource it resume its execution from
> begining or from the point where it stopped? I did some tests because I'm
> trying to simulate a checkpoint mechanism and I need to know this for sure.
>
> Thanks
>
> Vinicius
>
>
> 2008/8/18 Anthony Sulistio <an...@cs...>
>
>>
>> Hello,
>>
>> The resource scheduler i.e. SpaceShared or TimeShared
>> will update the gridlet length or call
>> Gridlet#setGridletFinishedSoFar() method,
>> according the following conditions:
>> - the gridlet is finished executing
>> - the gridlet is cancelled
>> - the gridlet is migrated to another resource
>>
>> The reason is GridSim is a discrete-event simulation, hence, the simulation
>> time is not continuous, e.g. time = 1, 2, 3, 4, ...
>> Instead, the time jumps based on the arrival of new events,
>> e.g. simulation time = 0, 40, 100, 700, ...
>>
>>
>> Thus, the best way to check the status of a gridlet is by using
>> the GridSim#gridletStatus() method.
>> This method returns the current Gridlet status or -1 if not found.
>> The various Gridlet status can be found in Gridlet class.
>> Note that you should only call this method at a certain interval,
>> not in a loop, since it will slow down the simulation.
>> In addition, the gridlet length will still be zero, until
>> one of the 3 conditions is satisfied.
>>
>>
>>
>> anthony
>>
>>
>>
>> On Wed, 13 Aug 2008, Vinicius Pinheiro wrote:
>>
>>  Hi,
>>>
>>> I'm having problems in getting the amount of computation executed so far.
>>> The method Gridlet.getGridletFinishedSoFar() always return 0. Just when
>>> the
>>> Gridlet has finished is that it returns the size of the gridlet, what is
>>> useless at this point.
>>> My code something like:
>>>
>>> while(gridletNotFinished()) {
>>>   double amount = gridlet.getGridletFinishedSoFar();
>>>   System.out.println("FinishedSofar: " + amount);
>>> }
>>>
>>> Is there something there I have to do in order to get this method working
>>> properly?
>>>
>>> Thanks in advance,
>>>
>>> Vinicius Pinheiro
>>>
>>>
>