Search results for "queuing networks"

Hits ?▲	Authors	Title	Venue	Year	Link	Author keywords
3	Ram Chakka, Enver Ever, Orhan Gemikonakli	Joint-State Modeling for Open Queuing Networks with Breakdowns, Repairs and Finite Buffers.	MASCOTS	2007	DBLP DOI BibTeX RDF	Joint-state model, Open Queuing Networks, finite capacity nodes, breakdowns and repairs, spectral expansion, QBD processes, I
3	Keith W. Ross, Danny H. K. Tsang, Jie Wang	Monte Carlo Summation and Integration Applied to Multiclass Queuing Networks.	J. ACM	1994	DBLP DOI BibTeX RDF	product-form queuing networks, variation reduction, gradient estimation
3	David M. Nicol	Conservative Parallel Simulation of Priority Class Queuing Networks.	IEEE Trans. Parallel Distrib. Syst.	1992	DBLP DOI BibTeX RDF	priority class, conservative synchronization protocol, parallelsimulation, parallel algorithms, protocols, queueing theory, queuing networks
2	Hyungwook Park, Paul A. Fishwick	A fast hybrid time-synchronous/event approach to parallel discrete event simulation of queuing networks.	Winter Simulation Conference	2008	DBLP DOI BibTeX RDF
2	Vasileios Karyotis, Anastasios Kakalis, Symeon Papavassiliou	Malware-Propagative Mobile Ad Hoc Networks: Asymptotic Behavior Analysis.	J. Comput. Sci. Technol.	2008	DBLP DOI BibTeX RDF	infection efficiency, wireless ad hoc networks, closed queuing networks
2	Thomas Bonald	Insensitive Traffic Models for Communication Networks.	Discrete Event Dynamic Systems	2007	DBLP DOI BibTeX RDF	Kelly-Whittle queuing networks, Communication networks, Traffic modeling, Insensitivity, Bandwidth sharing
2	Sören Sonntag, Matthias Gries, Christian Sauer	Performance Evaluation of Packet Processing Architectures Using Multiclass Queuing Networks.	Annual Simulation Symposium	2006	DBLP DOI BibTeX RDF
2	Ananth Krishnamurthy, Rajan Suri	Performance analysis of single stage kanban controlled production systems using parametric decomposition.	Queueing Syst.	2006	DBLP DOI BibTeX RDF	Kanban systems, Fork/join stations, Parametric decomposition, Two moment approximation, Performance analysis, Closed queuing networks
2	Giuliano Antoniol, Massimiliano Di Penta, Mark Harman	Search-Based Techniques for Optimizing Software Project Resource Allocation.	GECCO	2004	DBLP DOI BibTeX RDF	Genetic Algorithms, Software Project Management, Queuing Networks
2	Paolo Cremonesi, Paul J. Schweitzer, Giuseppe Serazzi	A Unifying Framework for the Approximate Solution of Closed Multiclass Queuing Networks.	IEEE Trans. Computers	2002	DBLP DOI BibTeX RDF	approximate solution techniques, multiclass workloads, Queuing network models
2	Hassan Gomaa, Daniel A. Menascé	Performance Engineering of Component-Based Distributed Software Systems.	Performance Engineering	2001	DBLP DOI BibTeX RDF	component interconnection patterns, XML, UML, software architecture, performance model, queuing networks
2	Bruno Tuffin	Variance Reduction Applied to Product-Form Multiclass Queuing Networks.	ACM Trans. Model. Comput. Simul.	1997	DBLP DOI BibTeX RDF	antithetic variates, Monte Carlo, variance reduction, low discrepancy sequences, product-form networks
2	Dan Picker, Ronald D. Fellman	Successive Superposition: A Technique for the Exact Modeling of Deterministic Packet Queuing Networks.	IEEE Trans. Parallel Distrib. Syst.	1996	DBLP DOI BibTeX RDF	packet multiplexing, packet queuing networks, rate monotonic scheduling algorithm, Asynchronous transfer mode, multiprocessor scheduling, interprocessor communication, signal flow graphs
2	Gagan L. Choudhury, Kin K. Leung, Ward Whitt	Calculating Normalization Constants of Closed Queueing Networks by Numerically Inverting Their Generating Functions.	J. ACM	1995	DBLP DOI BibTeX RDF	Euler summation, numerical transform inversion, production-form model, performance analysis, scaling, dimension reduction, generating function, partition function, closed queuing networks, normalization constant
2	Yves Dallery, Zhen Liu, Donald F. Towsley	Equivalence, Reversibility, Symmetry and Concavity Properties in Fork-Join Queueing Networks with Blocking.	J. ACM	1994	DBLP DOI BibTeX RDF	Fork-Join queuing networks, blocking before service, throughput, symmetry, duality, queuing theory, equivalence, marked graphs, concavity
2	Keith W. Ross, Jie Wang	Asymptotically Optimal Importance Sampling for Product-Form Queuing Networks.	ACM Trans. Model. Comput. Simul.	1993	DBLP DOI BibTeX RDF	importance sampling, queuing networks, Monte Carlo integration
2	Sanguthevar Rajasekaran, Keith W. Ross	Fast Algorithms for Generating Discrete Random Variates with Changing Distributions.	ACM Trans. Model. Comput. Simul.	1993	DBLP DOI BibTeX RDF	randomized algorithms, queuing networks
2	Devendra Kumar	Systems with Low Distributed Simulation Overhead.	IEEE Trans. Parallel Distrib. Syst.	1992	DBLP DOI BibTeX RDF	overhead messages, acyclic systems, open cyclic queuingnetworks, distributed simulation algorithms, performance evaluation, distributed processing, queueing theory, digital simulation, programming theory, closed queuing networks
2	Javier Campos, Giovanni Chiola, Manuel Silva	Ergodicity and Throughput Bounds of Petri Nets with Unique Consistent Firing Count Vector.	IEEE Trans. Software Eng.	1991	DBLP DOI BibTeX RDF	persistent nets, throughput bounds, unique consistent firing count vector, mono-T-semiflow net subclasses, incidence matrix, synchronized queuing networks, Petri nets, Petri nets, linear programming, linear programming, ergodicity, marked graphs
2	Gerard Florin, Stéphane Natkin	Generalization of Queueing Network Product Form Solutions to Stochastic Petri Nets.	IEEE Trans. Software Eng.	1991	DBLP DOI BibTeX RDF	queueing network product form solutions, closed synchronized queuing networks, Markov stochastic Petri net, strongly connected reachability graph, constant firing rates, Gordon-Newell theorem, performance evaluation, performance evaluation, Petri nets, queueing theory, stochastic Petri nets, matrix products, steady-state probability
2	Charles Knessl, Charles Tier	Asymptotic Expansions for Large Closed Queuing Networks	J. ACM	1990	DBLP DOI BibTeX RDF
2	Krishna R. Pattipati, Michael M. Kostreva, John L. Teele	Approximate Mean Value Analysis Algorithms for Queuing Networks: Existence, Uniqueness, and Convergence Results	J. ACM	1990	DBLP DOI BibTeX RDF
2	Edmundo de Souza e Silva, Stephen S. Lavenberg	Calculating joint queue-length distributions in product-form queuing networks.	J. ACM	1989	DBLP DOI BibTeX RDF
2	François Baccelli, William A. Massey, Donald F. Towsley	Acyclic fork-join queuing networks.	J. ACM	1989	DBLP DOI BibTeX RDF
2	Ian F. Akyildiz	On the Exact and Approximate Throughput Analysis of Closed Queueing Networks with Blocking.	IEEE Trans. Software Eng.	1988	DBLP DOI BibTeX RDF	exact throughput, approximate throughput analysis, source station, destination station, transfer blocking, two-station networks, performance evaluation, virtual machines, queueing theory, simulation results, blocking, state space, closed queuing networks
2	James McKenna	Asymptotic expansions of the sojourn time distribution functions of jobs in closed, product-form queuing networks.	J. ACM	1987	DBLP DOI BibTeX RDF
2	Adrian E. Conway, Nicolas D. Georganas	RECAL - a new efficient algorithm for the exact analysis of multiple-chain closed queuing networks.	J. ACM	1986	DBLP DOI BibTeX RDF
2	Derek L. Eager, Kenneth C. Sevcik	Bound hierarchies for multiple-class queuing networks.	J. ACM	1986	DBLP DOI BibTeX RDF
2	Y. C. Tay, Rajan Suri	Error Bounds for Performance Prediction in Queuing Networks	ACM Trans. Comput. Syst.	1985	DBLP DOI BibTeX RDF
2	Raymond M. Bryant, Anthony E. Krzesinski, M. Seetha Lakshmi, K. Mani Chandy	The MVA Priority Approximation	ACM Trans. Comput. Syst.	1984	DBLP DOI BibTeX RDF	multiclass queuing networks, priority queuing networks, error analysis, mean value analysis, approximate solutions, product form solutions
2	Hiroshi Kobayashi, Mario Gerla	Optimal Routing in Closed Queuing Networks	ACM Trans. Comput. Syst.	1983	DBLP DOI BibTeX RDF	load leveling, routing, packet switching, flow control, network optimization, queuing networks, virtual circuit
2	Martin Reiser, Stephen S. Lavenberg	Mean-Value Analysis of Closed Multichain Queuing Networks.	J. ACM	1980	DBLP DOI BibTeX RDF
2	M. Reiser, H. Kobayashi	On the convolution algorithm for separable queuing networks.	SIGMETRICS	1976	DBLP DOI BibTeX RDF
1	Jean-Michel Fourneau, Franck Quessette	Monotone Queuing Networks and Time Parallel Simulation.	ASMTA	2011	DBLP DOI BibTeX RDF
1	Banu Yetkin Ekren, Sunderesh S. Heragu	Approximate analysis of load-dependent generally distributed queuing networks with low service time variability.	European Journal of Operational Research	2010	DBLP DOI BibTeX RDF
1	V. Boitsov, M. Jivitere	The study of open-loop stochastic queuing networks with heterogeneous requests.	Automatic Control and Computer Sciences	2010	DBLP DOI BibTeX RDF
1	Andreas W. Liehr, Klaus Buchenrieder	Simulating inter-process communication with Extended Queuing Networks.	Simulation Modelling Practice and Theory	2010	DBLP DOI BibTeX RDF
1	Ben Lauwens, Bart Scheers	Stochastic hybrid simulation with applications to queuing networks.	SimuTools	2010	DBLP BibTeX RDF
1	Punyaslok Purkayastha, John S. Baras	Convergence results for ant routing algorithms viastochastic approximation.	HSCC	2010	DBLP DOI BibTeX RDF	ant routing algorithms, stochastic approximations and learning algorithms, queuing networks
1	Heike S. Rolfs, Andreas W. Liehr, Klaus Buchenrieder	Communication Modeling for System-Level Performance-Simulation.	ECBS	2010	DBLP DOI BibTeX RDF	Extended Queuing Networks, FlexRayTM, Simulation-Model, Communication Modeling
1	Jing Jia, Sunderesh S. Heragu	Solving Semi-Open Queuing Networks.	Operations Research	2009	DBLP DOI BibTeX RDF
1	Stephan Gradl, André Bögelsack, Holger Wittges, Helmut Krcmar	Layered Queuing Networks for Simulating Enterprise Resource Planning Systems.	MSVVEIS	2009	DBLP BibTeX RDF
1	Raffaele Bruno, Marco Conti, Antonio Pinizzotto	Capacity-aware routing in heterogeneous mesh networks: an analytical approach.	MSWiM	2009	DBLP DOI BibTeX RDF	performance evaluation, routing, load balancing, wireless mesh networks, queuing networks
1	Vasileios Karyotis, Anastasios Kakalis, Symeon Papavassiliou	On the Tradeoff between MAC-Layer and Network-Layer Topology-Controlled Malware Spreading Schemes in Ad Hoc and Sensor Networks.	SECURWARE	2009	DBLP DOI BibTeX RDF	malware spreading, topology control attacks, closed queuing networks
1	Songyun Duan, Peter Franklin, Vamsidhar Thummala, Dongdong Zhao, Shivnath Babu	Shaman: A Self-Healing Database System.	ICDE	2009	DBLP DOI BibTeX RDF
1	Giuliano Casale	CoMoM: Efficient Class-Oriented Evaluation of Multiclass Performance Models.	IEEE Trans. Software Eng.	2009	DBLP DOI BibTeX RDF
1	Carlo Ghezzi, Giordano Tamburrelli	Predicting Performance Properties for Open Systems with KAMI.	QoSA	2009	DBLP DOI BibTeX RDF
1	Thomas A. Henzinger, Barbara Jobstmann, Verena Wolf	Formalisms for Specifying Markovian Population Models.	RP	2009	DBLP DOI BibTeX RDF
1	Yu. I. Mitrophanov, V. I. Dolgov	Dynamic control of service rates in queuing networks.	Automatic Control and Computer Sciences	2008	DBLP DOI BibTeX RDF
1	Jing Xu	Rule-based automatic software performance diagnosis and improvement.	WOSP	2008	DBLP DOI BibTeX RDF	bottleneck., design improvement, layered queuing networks, rules, performance diagnosis
1	Jiuzhen Jin, Jianmin Pang, Zheng Shan, Rongcai Zhao	Queuing Network Performance Model for Evaluation of CMP-Based VoIP SPS.	ACIS-ICIS	2008	DBLP DOI BibTeX RDF	GI/G/m-FCFS open Queuing Network, Performance Evaluation, CMP, SPS
1	Peter Glynn	Linear Programming, Lyapunov Functions, and Performance Analysis.	QEST	2008	DBLP DOI BibTeX RDF
1	Sapan Shah, R. B. Lenin, Srini Ramaswamy, Sanjay Srivastava	Modeling and Analysis of Mobility in MANeTs for Distributed Applications.	ICDCIT	2008	DBLP DOI BibTeX RDF	Expansion method, squared coefficient of variation, discrete event simulation
1	Jonatha Anselmi, Giuliano Casale, Paolo Cremonesi	Approximate Solution of Multiclass Queuing Networks with Region Constraints.	MASCOTS	2007	DBLP DOI BibTeX RDF
1	Andriy Luntovskyy, Stefan Uhlig, Dietbert Gütter, Volodymyr Vasyutynskyy, Alexander Schill	Mean value load identification and queuing-theoretical modeling of wired and wireless LAN.	SpringSim	2007	DBLP DOI BibTeX RDF	CANDY Java framework, LAN/WLAN, load identification, performance modeling, queuing networks
1	Nabhendra Bisnik, Alhussein A. Abouzeid	Delay and capacity in energy efficient sensor networks.	PE-WASUN	2007	DBLP DOI BibTeX RDF	sensor networks, delay, throughput, queuing theory
1	James Wen Jun Xue, Ligang He, Stephen A. Jarvis	A scheduling algorithm for revenue maximisation for cluster-based Internet services.	ICPADS	2007	DBLP DOI BibTeX RDF
1	Reinhard Brandl, Martin Bichler, Michael Ströbel	Cost accounting for shared IT infrastructures.	Wirtschaftsinformatik	2007	DBLP DOI BibTeX RDF	IT Infrastructure Cost Accounting, Usage-based Cost Allocation, Queuing Network Theory, Capacity Planning
1	Dieter Armbruster, P. Degond, Christian A. Ringhofer	A Model for the Dynamics of large Queuing Networks and Supply Chains.	SIAM Journal of Applied Mathematics	2006	DBLP DOI BibTeX RDF
1	Irfan-Ullah Awan, Asfand-E. Yar, Michael E. Woodward	Analysis of Queuing Networks with Blocking under Active Queue Management Scheme.	ICPADS	2006	DBLP DOI BibTeX RDF
1	Nabhendra Bisnik, Alhussein A. Abouzeid	Queuing network models for delay analysis of multihop wireless ad hoc networks.	IWCMC	2006	DBLP DOI BibTeX RDF	ad hoc networks, delay, throughput, queuing theory
1	Hussein Charara, Jean-Luc Scharbarg, Jérôme Ermont, Christian Fraboul	Methods for bounding end-to-end delays on an AFDX network.	ECRTS	2006	DBLP DOI BibTeX RDF
1	Lei Wang 0011, Zhiying Wang, Kui Dai	An Approximate Method for Performance Evaluation of Asynchronous Pipeline Rings.	CIT	2006	DBLP DOI BibTeX RDF
1	Paola Bracchi, Bojan Cukic, Vittorio Cortellessa	Modeling the Performance of Border Inspections with Electronic Travel Documents.	ISSRE	2006	DBLP DOI BibTeX RDF
1	Markus Fidler	An End-to-End Probabilistic Network Calculus with Moment Generating Functions.	IWQoS	2006	DBLP DOI BibTeX RDF
1	Nurzhan Duzbayev, Iman Poernomo	Runtime Prediction of Queued Behaviour.	QoSA	2006	DBLP DOI BibTeX RDF
1	Weitao Sun, Jiwu Shu, Nianmin Yao	Study Queuing Networks Using CART.	MSV	2005	DBLP BibTeX RDF
1	John Musacchio, Jean C. Walrand	Achieving fair rates with ingress policing.	SIGMETRICS	2005	DBLP DOI BibTeX RDF
1	Aye Thanda, Pyke Tin, Koichiro Ochimizu	Optimal Policy for a Class of Compartmental Models.	ICITA	2005	DBLP DOI BibTeX RDF	stochastic compartmental models, biological cells system, network of queue and optimal policy
1	Giuseppe De Marco, Giovanni Iacovoni	A Technique to Analyse Session Initiation Protocol Traffic.	ICPADS	2005	DBLP DOI BibTeX RDF
1	Elena Gómez-Martínez, José Merseguer	A Software Performance Engineering Tool based on the UML-SPT.	QEST	2005	DBLP DOI BibTeX RDF
1	David A. Bacigalupo, Stephen A. Jarvis, Ligang He, Daniel P. Spooner, Donna N. Dillenberger, Graham R. Nudd	An Investigation into the Application of Different Performance Prediction Methods to Distributed Enterprise Applications.	The Journal of Supercomputing	2005	DBLP DOI BibTeX RDF	distributed enterprise application, layered queuing modelling, historical performance data, resource management, service level agreement, performance prediction
1	Michele Garetto, Renato Lo Cigno, Michela Meo, Marco Ajmone Marsan	Modeling short-lived TCP connections with open multiclass queuing networks.	Computer Networks	2004	DBLP DOI BibTeX RDF
1	Changxu Wu, Yili Liu	Modeling Psychological Refractory Period (PRP) and Practice Effect on PRP with Queuing Networks and Reinforcement Learning Algorithms.	ICCM	2004	DBLP BibTeX RDF
1	Christina Catley, Dorina C. Petriu, Monique Frize	Software Performance Engineering of a Web service-based Clinical Decision Support infrastructure.	WOSP	2004	DBLP DOI BibTeX RDF	layered queuing networks, Web services, XML, Software Performance Engineering (SPE), Clinical Decision Support Systems
1	Salvatore D'Antonio, Marcello Esposito, Simon Pietro Romano, Giorgio Ventre	Assessing the scalability of component-based frameworks: the CADENUS case study.	SIGMETRICS Performance Evaluation Review	2004	DBLP DOI BibTeX RDF	scalability, network protocols, mediation, probability theory, queuing networks
1	Ananth Krishnamurthy, Rajan Suri, Mary K. Vernon	Analysis of a Fork/Join Synchronization Station with Inputs from Coxian Servers in a Closed Queuing Network.	Annals OR	2004	DBLP DOI BibTeX RDF	fork/join, assembly systems, synchronization, closed queuing networks
1	Natalia Kryvinska	Intelligent Network Analysis by Closed Queuing Models.	Telecommunication Systems	2004	DBLP DOI BibTeX RDF	M/G/1/K/K, closed queuing networks, IN
1	Hai-Jun Huang, William H. K. Lam	A Multi-Class Dynamic User Equilibrium Model for Queuing Networks with Advanced Traveler Information Systems.	J. Math. Model. Algorithms	2003	DBLP DOI BibTeX RDF
1	J. Chen	Evaluate loss probabilities of packet-awareness coder into queuing networks.	ISCAS	2003	DBLP DOI BibTeX RDF
1	Wai Kin Chan, Lee Schruben	Special topics on simulation analysis: properties of discrete event systems from their mathematical programming representations.	Winter Simulation Conference	2003	DBLP DOI BibTeX RDF
1	Samuel Kounev, Alejandro P. Buchmann	Performance modelling of distributed e-business applications using Queuing Petri Nets.	ISPASS	2003	DBLP DOI BibTeX RDF
1	Wei Monin, Fabrice Dubois, Daniel Vincent, Pierre Combes	Looking for Better Integration of Design and Performance Engineering.	SDL Forum	2003	DBLP DOI BibTeX RDF
1	Jasleen Kaur, Harrick M. Vin	End-to-end Fairness Analysis of Fair Queuing Networks. (PDF / PS)	IEEE Real-Time Systems Symposium	2002	DBLP DOI BibTeX RDF
1	Michele Garetto, Renato Lo Cigno, Michela Meo, E. Alessio, Marco Ajmone Marsan	Modeling Short-Lived TCP Connections with Open Multiclass Queuing Networks.	Protocols for High-Speed Networks	2002	DBLP DOI BibTeX RDF
1	Daniel A. Menascé	Simple analytic modeling of software contention.	SIGMETRICS Performance Evaluation Review	2002	DBLP DOI BibTeX RDF
1	Zeljka Car, Branko Mikac	A Method for Modeling and Evaluating Software Maintenance Process Performances. (PDF / PS)	CSMR	2002	DBLP DOI BibTeX RDF
1	Daniel A. Menascé	Two-Level Iterative Queuing Modeling of Software Contention.	MASCOTS	2002	DBLP DOI BibTeX RDF
1	Annie A. M. Cuyt, R. B. Lenin	Multivariate Rational Approximants for Multiclass Closed Queuing Networks.	IEEE Trans. Computers	2001	DBLP DOI BibTeX RDF	Normalizing function, stationary probability distribution, Newton-Padé approximation, partial Padé approximation, convolution algorithm, multivariate
1	Daniel A. Menascé, Daniel Barbará, Ronald Dodge	Preserving QoS of e-commerce sites through self-tuning: a performance model approach.	ACM Conference on Electronic Commerce	2001	DBLP DOI BibTeX RDF	TPC-W, QoS, e-business, queuing networks, QoS control
1	Allan Borodin, Jon M. Kleinberg, Prabhakar Raghavan, Madhu Sudan, David P. Williamson	Adversarial queuing theory.	J. ACM	2001	DBLP DOI BibTeX RDF	stability, packet routing, scheduling protocols
1	Stephanie Mahévas, Gerardo Rubino	Bound Computation of Dependability and Performance Measures.	IEEE Trans. Computers	2001	DBLP DOI BibTeX RDF	bounding techniques, performance evaluation, Markov chains, numerical analysis, Dependability evaluation
1	Chih-Jen Chang, Arne A. Nilsson	Queuing Networks Modelling for a Packet Router Architecture Using the DTM Technology.	ICC	2000	DBLP BibTeX RDF
1	Hassan Gomaa, Daniel A. Menascé	Design and performance modeling of component interconnection patterns for distributed software architectures.	Workshop on Software and Performance	2000	DBLP DOI BibTeX RDF	component interconnection patterns, XML, UML, software architecture, performance model, queuing networks
1	Dorina C. Petriu, Hoda Amer, Shikharesh Majumdar, Istabrak Abdul-Fatah	Using analytic models predicting middleware performance.	Workshop on Software and Performance	2000	DBLP DOI BibTeX RDF	client-server performance, layered queuing networks, CORBA, CORBA, analytic performance model
1	Marin Litoiu, Jerome A. Rolia, Giuseppe Serazzi	Designing Process Replication and Activation: A Quantitative Approach.	IEEE Trans. Software Eng.	2000	DBLP DOI BibTeX RDF	Distributed systems, performance analysis, linear programming, performance modeling, software design, nonlinear programming, closed queuing networks, distributed design
1	Daniel A. Menascé, Hassan Gomaa	A Method for Design and Performance Modeling of Client/Server Systems.	IEEE Trans. Software Eng.	2000	DBLP DOI BibTeX RDF	database query optimization, CLISSPE, UML, performance models, Software performance engineering, queuing networks, client/server systems
1	Eitan Altman, Bruno Gaujal, Arie Hordijk	Balanced sequences and optimal routing.	J. ACM	2000	DBLP DOI BibTeX RDF	balanced sequences, multimodularity, stochastic event graphs, optimal control
1	Hema Tahilramani Kaur, D. Manjunath, Sanjay K. Bose	The Queuing Network Analysis Tool (QNAT). (PDF / PS)	MASCOTS	2000	DBLP DOI BibTeX RDF
1	Lin-Wen Lee, Peter Scheuermann, Radek Vingralek	File Assignment in Parallel I/O Systems with Minimal Variance of Service Time.	IEEE Trans. Computers	2000	DBLP DOI BibTeX RDF	variance of service time, load balancing, heuristic algorithms, File allocation, parallel I/O systems