#World community grid boinc manager how to

to offer a higher availability level than the minimum requested by the user), although quite expensive, since it has been built using expensive resources. By construction, we expect this initial solution to be feasible (i.e. This estimation can be performed using simulation-based algorithms, as explained in the next section. In particular, the manager must estimate the system availability function to ensure that it satisfies the user’s requirements. Once the initial solution has been constructed using highly available resources, the manager can check for service feasibility. Notice also that during the initial selection of nodes we could consider policies that promote independence among failure and repair times of different nodes, for example by selecting geographically dispersed nodes or nodes belonging to different clusters inside the community. A numerical experiment section, comparing the performance of several algorithms, contributes to validating the proposed approach as well as to illustrate its potential applications. The simulation component is integrated inside the metaheuristic and used to estimate the service availability of each promising configuration. The metaheuristic component is used to search for an efficient configuration of resources. In order to solve this stochastic optimization problem, the paper proposes a hybrid algorithm that combines a metaheuristic component with a discrete-event simulation component. Accordingly, the focus of this paper is the problem of minimizing the cost of a service deployment over non-dedicated resources while providing a high level of service availability. However, this praxis leads to an inefficient usage of computational resources and, therefore, to higher operational costs.

#World community grid boinc manager how to

Most approaches on how to guarantee high service availability levels with non-dedicated resources are based on the introduction of high degrees of redundancy into the system.

Thus, in order to use non-dedicated resources in cloud computing environments, it is necessary first to solve the problem of how to attain high availability levels for the Internet services deployed over them. Accordingly, their availability levels are lower than those of traditionally employed dedicated resources.

Being non-dedicated, these resources show random behavior regarding the times they are online (available) and offline. All subjects Allied Health Cardiology & Cardiovascular Medicine Dentistry Emergency Medicine & Critical Care Endocrinology & Metabolism Environmental Science General Medicine Geriatrics Infectious Diseases Medico-legal Neurology Nursing Nutrition Obstetrics & Gynecology Oncology Orthopaedics & Sports Medicine Otolaryngology Palliative Medicine & Chronic Care Pediatrics Pharmacology & Toxicology Psychiatry & Psychology Public Health Pulmonary & Respiratory Medicine Radiology Research Methods & Evaluation Rheumatology Surgery Tropical Medicine Veterinary Medicine Cell Biology Clinical Biochemistry Environmental Science Life Sciences Neuroscience Pharmacology & Toxicology Biomedical Engineering Engineering & Computing Environmental Engineering Materials Science Anthropology & Archaeology Communication & Media Studies Criminology & Criminal Justice Cultural Studies Economics & Development Education Environmental Studies Ethnic Studies Family Studies Gender Studies Geography Gerontology & Aging Group Studies History Information Science Interpersonal Violence Language & Linguistics Law Management & Organization Studies Marketing & Hospitality Music Peace Studies & Conflict Resolution Philosophy Politics & International Relations Psychoanalysis Psychology & Counseling Public Administration Regional Studies Religion Research Methods & Evaluation Science & Society Studies Social Work & Social Policy Sociology Special Education Urban Studies & Planning BROWSE JOURNALSĬloud computing systems can benefit from the use of personal and non-dedicated computers, which are currently employed in volunteer computing systems.