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the current received bid as the best bid and notifies the
first resource provider that its bid is rejected and then
the provider will free the resources. However, if the
old best bid is better than the current received bid the
grid client simply sends reject notification message to
the new provider to free its resources.
5 CONCLUSIONS
This paper presents a new resource selection mecha-
nism in a bidding based grid system to enhance the
process of resource selection in an effective and effi-
cient way. The proposed mechanism tackles the prob-
lems arise when using traditional reserved and non-
reserved resource selection mechanisms. Our algo-
rithm keeps the most suitable resource for executing
the job as a promise, and therefore, the job comple-
tion time will be as estimated. Furthermore, since
the proposed mechanism reserves only one resource,
resource providers can utilize their resources effec-
tively. Now we are in the implementation phase, and
we plan to simulate the mechanism in a grid simulated
environmentusing GridSim as a simulator, to evaluate
the performance of the proposed mechanism.
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