New Trends in Information and Communications Technology Applications by Unknown

Author:Unknown
Language: eng
Format: epub
ISBN: 9783030553401
Publisher: Springer International Publishing

Step 3: Application of the Migration Between the Three Algorithms

Three parallel genetic algorithms are executed synchronously in parallel over real four-core processor. Three cores are selected to run the three algorithms in parallel using message passing primitives. Moreover, point-to-point communication functionsare used to apply the migration model. Figure 2 shows the migration model between the three parallel algorithms.

Fig. 2.The migration model

MPI_Send() and MPI_Recv communication primitives of MPI are used to migrate the selected individuals between the algorithms during the execution time of the parallel system. After a specific number of iterations, migration is applied between the algorithms.

At each algorithm, three individuals are selected randomly and the best one is the migrated individual. Each received individual from the migration is replaced with worst individual selected from a random group of five individuals if its fitness is better from the later individual.

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