Resource scheduling is a key process for clouds such as Infrastructure as a Service *** make the most efficient use of the resources,we propose an optimized scheduling algorithm to achieve the optimization or sub-opti...
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Resource scheduling is a key process for clouds such as Infrastructure as a Service *** make the most efficient use of the resources,we propose an optimized scheduling algorithm to achieve the optimization or sub-optimization for cloud scheduling *** investigate the possibility to place the Virtual Machines in a flexible way to improve the speed of finding the best allocation on the premise of permitting the maximum utilization of resources. Mathematically,we consider the scheduling problem come down to an Unbalance Assignment *** scheduling policy achieved by parallel genetic algorithm which is much faster than traditional genetic *** experiments show that our method improved both the speed of resources allocation and the utilization of system resource.
The paper considers a problem of building the hybrid algorithm for solving the optimization design tasks on the basis of integration of different methods of computation intelligence. The authors describe the definitio...
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ISBN:
(纸本)9783030392161;9783030392154
The paper considers a problem of building the hybrid algorithm for solving the optimization design tasks on the basis of integration of different methods of computation intelligence. The authors describe the definition and the main approaches to building the hybrid systems and demonstrate the possibilities of integration of the evolutionary design and multi-agent systems methods The different approaches to evolutionary design of the agents are considered. Different methods of parallelizing the computational process and the main models of parallel genetic algorithms, their benefits and shortcomings are described and analyzed in the paper. A hybrid parallel genetic algorithm for searching and optimization of the design decisions is developed in the paper. The algorithm is implemented as software subsystem and investigated in terms of its effectiveness.
For multi-objective optimization problems, we introduced IPAGA (Improved parallel Adaptive geneticalgorithm) in this paper, a new parallel genetic algorithm which is based on Pareto Front. In this algorithm, the non-...
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ISBN:
(纸本)9780769538884
For multi-objective optimization problems, we introduced IPAGA (Improved parallel Adaptive geneticalgorithm) in this paper, a new parallel genetic algorithm which is based on Pareto Front. In this algorithm, the non-dominated-set is constructed by the method of exclusion. The evolution population adopts the adaptive-crossover and adaptive-mutation probability, which can adjust the search scope according to solution quality. The results show that the parallel genetic algorithm developed in this paper is efficient.
In many Multi-Objective, Optimization Problems it is required to evaluate it great number of objective functions and constraints and the calculation effort is very high. The use of parallelism in Multi-Objective Genet...
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ISBN:
(纸本)9783642047718
In many Multi-Objective, Optimization Problems it is required to evaluate it great number of objective functions and constraints and the calculation effort is very high. The use of parallelism in Multi-Objective geneticalgorithms is one of the solutions of this problem. In this work we propose an algorithm, based on parallelization scheme using island model with spatially isolated populations. The intent of the proposed paper is to illustrate that modifications made to it selection and resolution processes and to a migration scheme have further improved the efficiency of the algorithm and good distribution of Pareto front.
In this paper, a novel parallel evolutionary algorithm called coarse-grained parallel quantum geneticalgorithm (CGPQGA) is proposed. The main points of CGPQGA are that a new chromosome representation called qubit rep...
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ISBN:
(纸本)0780378407
In this paper, a novel parallel evolutionary algorithm called coarse-grained parallel quantum geneticalgorithm (CGPQGA) is proposed. The main points of CGPQGA are that a new chromosome representation called qubit representation, a novel evolutionary strategy called qubit phase comparison approach and an extended version of coarse-grained model called hierarchical ring model are introduced. Based on the concepts and principles of quantum computing and quantum parallelism introduced, CGPQGA is characterized by rapid convergence, good global search capability and the ability of possessing exploration and exploitation simultaneously. In CGPQGA, the best individual can be easy to migrate to all processors and communication overhead is much less expensive. The experimental results of infinite impulse response digital filter design demonstrate that CGPQGA can speedup the migration of the top individuals of subpopulations and CGPQGA is superior to other several geneticalgorithms greatly in quality and efficiency.
Taxi-passenger matching plays a crucial role in modern taxi systems. However, currently, the greedy mechanisms are widely adopted, which may limit the quality of services provided by the systems. In this paper, we fir...
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Taxi-passenger matching plays a crucial role in modern taxi systems. However, currently, the greedy mechanisms are widely adopted, which may limit the quality of services provided by the systems. In this paper, we first formulate the taxi-passenger matching as a global optimization problem by considering the pickup rate and average waiting time of passengers. Then, we propose a parallel genetic algorithm to solve the problem. New operators, including initialization, crossover, and mutation, are designed specifically for the problem. In addition, we use a divide-and-conquer strategy for dimension reduction. The problem is divided into a number of sub-problems according to the geographical locations of passengers and taxis. Each sub-problem is then solved in a parallel way by a sub-component of our proposed algorithm. Experimental results validate the effectiveness and efficiency of the proposed algorithm. It is able to greatly enhance the quality of services provided by the taxi systems.
In this article, we present a parallel graphical processing unit (GPU)-based geneticalgorithm (GA) for solving the resource-constrained multi-project scheduling problem (RCMPSP). We assumed that activity pre-emption ...
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In this article, we present a parallel graphical processing unit (GPU)-based geneticalgorithm (GA) for solving the resource-constrained multi-project scheduling problem (RCMPSP). We assumed that activity pre-emption is not allowed. Problem is modeled in a portfolio of projects where precedence and resource constraints affect the portfolio duration. We also assume that the durations, availability of resources are deterministic and portfolio has a static nature. The objective in this article is to find a start time for each activity of the project so that the portfolio duration is minimized, while satisfying precedence relations and resource availabilities within a reasonable amount of time for small and large problem instances. In order to compare the efficiency of the proposed parallel GPU-based GA, problem is solved together with a CPU and a GPU. The results showed that GPU-based parallel GA has high potential for improving the performance of GAs for the RCMPSP particularly, for large-scale problems.
In this paper,a novel parallel evolutionary algorithm called coarse-grained parallel quantum geneticalgorithm(CGPQGA) is *** main points of CGPQGA are that a new chromosome representation called qubit representation,...
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In this paper,a novel parallel evolutionary algorithm called coarse-grained parallel quantum geneticalgorithm(CGPQGA) is *** main points of CGPQGA are that a new chromosome representation called qubit representation,a novel evolutionary strategy called qubit phase comparison approach and an extended version of coarse-grained model called hierarchical ring model are *** on the concepts and principles of quantum computing and quantum parallelism introduced, CGPQGA is characterized by rapid convergence,good global search capability and the ability of possessing exploration and exploitation *** CGPQGA, the best individual can be easy to migrate to all processors and communication overhead is much less *** experimental results of infinite impulse response digital filter design demonstrate that CGPQGA can speedup the migration of the top individuals of subpopulations and CGPQGA is superior to other several geneticalgorithms greatly in quality and efficiency.
To make deep neural networks automatically achieve the same or better performance compared with those in hand-optimized libraries, Tensor Virtual Machine (TVM) has combined a geneticalgorithm (GA) with its AutoTVM au...
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To make deep neural networks automatically achieve the same or better performance compared with those in hand-optimized libraries, Tensor Virtual Machine (TVM) has combined a geneticalgorithm (GA) with its AutoTVM auto-tuning process. The geneticalgorithm of TVM has a primary and classic design, with restrictions in terms of searching scope, ability, and efficiency. Meanwhile, the current AutoTVM process is time-consuming. The whole process may last hours on GPUs. As such, we propose a new auto-tuning method that is based on a parallel GA and takes advantage of the strengths of the Roofline model-based cost models and machine learning classification models to widen the search scope and improve search efficiency. The new auto-tuning method achieves double optimization on both tuning results and tuning time. A series of experiments show that the new way improves the inference time of typical deep networks by about 8-14% and speeds up the time consumption of the auto-tuning process up to 1.2-1.52x on GPUs compared with the original GA process of AutoTVM.
This work presents two parallel genetic algorithms ( PGAs) for product configuration management: a parallel conventional geneticalgorithm ( PCGA) and a parallel multiple- searching geneticalgorithm ( PMGA). This par...
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This work presents two parallel genetic algorithms ( PGAs) for product configuration management: a parallel conventional geneticalgorithm ( PCGA) and a parallel multiple- searching geneticalgorithm ( PMGA). This parallel/ distributed approach is based on a coarsegrained ( or island) paradigm which is implemented on a cluster of PCs using message passing interface for the genetic information interchange. The product configuration problem assuming that customers would like to have minimum cost and a customized product can be obtained by finding the shortest path of the configuration network diagram. The performance of these algorithms is estimated by comparing the solutions of PGAs with those of sequential geneticalgorithms ( GAs) and mathematical programming. A weighting scale example from an empirical study is reported for illustrational purposes. Computational results show that the solutions obtained from the PMGA outperform other GAs in both accuracy and efficiency.
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