'Total order' diaporamas de présentation

Tools for High Performance Scientific Computing

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L aboratoire de R echerche en I nformatique Universite de Paris Sud

L aboratoire de R echerche en I nformatique Universite de Paris Sud. Dr. Franck Cappello. MPICH- V : Toward a scalable fault tolerant MPI for V olatile nodes. G. Bosilca, A. Bouteiller, F. Cappello , S. Djilali, G. Fedak, C. Germain, Th. Herault, P. Lemarinier,

631 views • 53 slides

A Core Course on Modeling

A Core Course on Modeling. Week 3- Time for Change. ? ? ? ? ? Contents ? ? ? ? ?. Change needs Time Introduction to Processes States and State Charts Applying State Charts Time and State Transitions Partially Ordered Time Totally Ordered Time Totally Ordered Time; Equal Intervals

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Distributed Systems CS 15-440

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Blockchains

Blockchains. Lecture 8. State Machine Replication, BFT, and Blockchains. State Machine Replication. Single Server Architecture. State Machine Replication. Single Server Architecture. A single point of failure!. State Machine Replication. State Machine Replication.

437 views • 28 slides

Paradigms for Building Distributed Systems: Performance Measurements and Conditional Analysis

Paradigms for Building Distributed Systems: Performance Measurements and Conditional Analysis. Idit Keidar MIT Lab for Computer Science Theory of Distributed Systems Group. Outline. Motivation: application domain Paradigms for building distributed applications

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Ordering of events in Distributed Systems & Eventual Consistency

Ordering of events in Distributed Systems & Eventual Consistency. Jinyang Li. What is consistency?. Consistency model: A constraint on the system state observable by application operations Examples: X86 memory: Database:. write x=5. read x (should be 5). time. x:=x+1; y:=y-1.

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Group Communication Specifications Gregory V Chockler, Idit Keidar, Roman Vitenberg

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An Application Framework For Event-driven, Re-configurable Distributed Applications

An Application Framework For Event-driven, Re-configurable Distributed Applications. M.Ranganathan Multimedia and Digital Video Group National Institute of Standards and Technology. Goals of the AGNI Project.

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Talk Outline

Trace Verification for Parallel Systems Vijay K. Garg Department of Electrical and Computer Engineering The University of Texas at Austin Austin, TX 78712 email: garg@ece.utexas.edu. Talk Outline. Motivation and Overview Instrumentation Clock : Tracking Dependency Property Checking

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Partial Orderings

Partial Orderings. Aaron Bloomfield CS 202 Rosen, section 7.6. Introduction. An equivalence relation is a relation that is reflexive, symmetric, and transitive A partial ordering (or partial order) is a relation that is reflexive, anti symmetric, and transitive

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Database Replication in WAN

Database Replication in WAN. Yi Lin Supervised by: Prof. Kemme April 8, 2005. Contents. Introduction Centralized Snapshot Isolation Replication (SIR) protocol Decentralized SIR protocol for WAN Experiments Further optimizations Related work Conclusions and milestones.

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Six Blind Men and the Elephant

Six Blind Men and the Elephant. Entity. Relationship. Attribute. Multivalued Attribute. Associative Entity. Basic ERD Symbology. PRODUCTS. CUSTOMERS. are purchased by. SUPPLIERS. PRODUCTS. supply. ORDERS. PRODUCTS. contain. ORDERS. CUSTOMERS. are placed by. EMPLOYEES. OFFICES.

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Group Communication

Group Communication. Group oriented activities are steadily increasing. There are many types of groups: ? Open and Closed groups ? Peer-to-peer and hierarchical groups. We focus on how the members of a group communicate. Major issues. Different types of multicast Atomic multicast

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Consistent Data Replication: Is it feasible in WANs?

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Totally Ordered Broadcast in the face of Network Partitions [Keidar and Dolev,2000]

Totally Ordered Broadcast in the face of Network Partitions [Keidar and Dolev,2000]. INF5360 Student Presentation 4/3-08 Miran Damjanovic mirand@ifi.uio.no. Overview. COReL (Introduction) COReL (The Model) COReL (System Architecture) COReL (Problem Definition:Service Guarantees)

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Self-organization in Science and Society: an introduction

Self-organization in Science and Society: an introduction. What is STS?. Usually we think about science having impact on society: eg cars and sex in 1950s But society has an impact on science: eg

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Digraphs and Relations Warm Up

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Relations - review

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