نتایج جستجو برای: job scheduling
تعداد نتایج: 131965 فیلتر نتایج به سال:
This work presents dispatching strategies based on methods of job-flow and application-level scheduling in virtual organizations of distributed computational environments with non-dedicated resources. Job-flow management is implemented with the set of specific rules for resource usage. Applications are considered as parallel jobs. Strategies are based on economic scheduling models and diverse a...
In this paper, scheduling problems in Flexible Manufacturing Cells (FMC) are studied. The scheduling objective is to minimize the makespan. We used a genetic algorithm (GA) for solving the optimization scheduling problem. We have developed one FMC with industrial characteristics with the objective of studying scheduling problems in these types of manufacturing systems (single machine scheduling...
Job shop scheduling is one of the most explored areas in the last few decades. Although it is very commonly witnessed in real-life situations, very less investigation has been carried out in scheduling operations of multi-level jobs, which undergo serial, parallel, and assembly operations in an assembly job shop. In this work, some of the dispatch rules, which have best performances in scheduli...
On the basis of researching Fair Scheduling Strategy deeply in Hadoop cluster,the Node Health Degree is defined by constructing the relationship function between node load and job fail rate, and a job scheduling algorithm based on Node Health Degree is proposed in this paper. Nodes are grouped, according to Node Health Degree, into three categories in order to assign corresponding job in accord...
This paper evaluates the performance of job scheduling schemes for pure space sharing among rigid jobs. Conventional job scheduling schemes for the pure space sharing among rigid jobs have been achieved by First Come First Served (FCFS). However, FCFS has a drawback such that it can not utilize processors eeciently. This paper evaluates the performance of job scheduling schemes that are propose...
Considering the standard particle swarm optimization (PSO) has the shortcomings of low convergence precision in job shop scheduling problems, the job shop scheduling solution is presented based on improved particle swarm optimization (A-PSO). In this paper, the basic theory of A-PSO is described. Also, the coding and the selection of parameters as well as the decoding of A-PSO are studied. It u...
This paper presents an integrated approach for scheduling in distributed computing with strategies as sets of job supporting schedules generated by a critical works method. The strategies are implemented using a combination of job-flow and application-level techniques of scheduling within virtual organizations of Grid. Applications are regarded as compound jobs with a complex structure containi...
Cloud computing is flourishing day by day and it will continue in developing phase until computers and internet era is in existence. While dealing with cloud computing, a number of issues are confronted like heavy load or traffic while computation. Job scheduling is one of the answers to these issues. It is the process of mapping task to available resource. In section (1) discuss about cloud co...
Scheduling of jobs is a challenging problem in grid. Efficient job scheduling is essential for the effective utilization of the resources. We propose a grid model as a collection of clusters. In this paper, we apply Divisible Load Theory (DLT) and Least Cost Method (LCM) to model the grid scheduling problem involving multiple worker nodes in each cluster. We propose a hybrid job scheduling algo...
This study addresses the scheduling problem in remanufacturing engineering. The purpose of this paper is to model effectively to solve remanufacturing scheduling problem. The problem is modeled as flexible job-shop scheduling problem (FJSP) and is divided into two stages: scheduling and re-scheduling when new job arrives. The uncertainty in timing of returns in remanufacturing is modeled as new...
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