@proceedings {282,
	title = {Performance evaluation of gLite Grids through GSPNs},
	journal = {IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS},
	volume = {21},
	year = {2010},
	pages = {1611{\textendash}1625},
	abstract = {<p>Grid Computing supports the shared and coordinated use of several resources in dynamic Virtual Organizations. In the last few years, it is evolving into a business-innovating technology that is driving commercial adoption. Such a new scenario calls for powerful strategies able to guarantee stringent QoS requirements in order to meet Service Level Agreements (SLAs) between customers and providers. For this reason, it is necessary to analyze and predict performance with respect to different load conditions or management strategies. In this paper, we present a methodology to analyze performance in gLite Grids through the use of Generalized Stochastic Petri Nets (GSPNs). We introduce a cluster-level model of a typical gLite site taking into account the coexistence between normal and MPI-based jobs. We investigate the influence of different strategies (e. g., scheduling) on the performance of the whole site, highlighting aspects related to both customer and provider point of views. We also provide a business-oriented performance analysis introducing two different SLA typologies and highlighting how the site configuration may influence the expected profit of the service provider.</p>
},
	keywords = {generalized stochastic petri nets, gLite middleware, Grid computing, MPI-based jobs, performance measurements, service level agreement},
	doi = {10.1109/TPDS.2010.35/10.1109/TPDS.2010.35},
	author = {D. Bruneo and Marco Scarpa and A. Puliafito}
}
@proceedings {Bruneo2010243,
	title = {VO-level performance analysis of gLite Grids},
	journal = {Proceedings of the 19th IEEE Workshop on Enabling Technologies: Infrastructure for Collaborative Enterprises (WETICE)},
	year = {2010},
	note = {cited By 0; Conference of 19th IEEE International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises, WETICE 2010 ; Conference Date: 28 June 2010 Through 30 June 2010; Conference Code:81490},
	pages = {243-248},
	publisher = {IEEE Computer Society},
	address = {Larissa, Greece, 28-30 June 2010},
	abstract = {<p>Business oriented grids call for effective Quality of Service strategies able to adapt to different user requirements. Performance analyses and predictions with respect to different load conditions or management policies are essential instruments to define such strategies. In this paper, we present a non-Markovian Stochastic Petri Net model that allows to conduct performance analyses of Grid systems focusing on aspects related to the Virtual Organization as a whole. Different job allocation techniques will be evaluated with respect to both user and provider point-of-views. We will also investigate the influence of different information update policies on the accuracy of the allocation schemes, highlighting the costs/benefits in terms of job waiting time, service availability, and system utilization. {\textcopyright} 2010 IEEE.</p>
},
	keywords = {Business-oriented, gLite middleware, Graph theory, Grid computing, Grid systems, Information updates, Job allocation, Load condition, Management policy, middleware, Non-Markovian, Performance analysis, performance measurements, Petri nets, Quality of service, Random access storage, Service availability, Stochastic models, Stochastic Petri Nets, Stochastic systems, System utilization, User requirements, Virtual organization, Waiting-time},
	isbn = {9780769540634},
	issn = {15244547},
	doi = {10.1109/WETICE.2010.45},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77955917215\&partnerID=40\&md5=5f89b9d07327325a09d78d1af77f0519},
	author = {Dario Bruneo and Francesco Longo and Marco Scarpa and Antonio Puliafito}
}
