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Fig. 7.37. 1000 PC cluster 1
An example is the 1000 PCs used in genetic programming (Fig 7.37
7.38). In Czech
Republic, there also exists such grid computers. An example of a grid configuration
is the supercomputer named Amalka with 360 processors used in space research and
related problems shown in Fig 7.39.
The grid cluster used for the FSS and TSP experiments, consisted of 16 XServers 2
x 2 GHz Intel Xeon, 1 GB RAM, 80 GB HD (Fig 7.40
7.41). Each Xserve contain 4
computational cores, so there are in total 64 computational cores. Part of the computa-
tional force has been used for FSS and TSP calculations.
7.6.1
Flow Shop Scheduling Tuning
The main issue for almost all meta-heuristics, which does optimization without knowl-
edge of the system, is that there are parameters to tune in the algorithm. In DE, there
are two control parameters, F and CR . These parameters are required in order to induce
the stochastic process in the heuristic, which will enable it to find the optimal solution
for that specific problem.
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