'Communication time' diaporamas de présentation

CS 240A : Matrix multiplication

CS 240A : Matrix multiplication. Matrix multiplication I : parallel issues Matrix multiplication II: cache issues Thanks to Jim Demmel and Kathy Yelick (UCB) for some of these slides. Matrix-Matrix Multiplication. {implements C = C + A*B} for i = 1 to n for j = 1 to n

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Parallel Programming in C with MPI and OpenMP

Parallel Programming in C with MPI and OpenMP. Michael J. Quinn. Chapter 13. Finite Difference Methods. Outline. Ordinary and partial differential equations Finite difference methods Vibrating string problem Steady state heat distribution problem.

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HALO

HALO. High Altitude Low Opening?. I know this is what you were thinking. Today. The heated plate and other stencils 1D decomposition 2D decomposition Redundant ghost computations. Outline. Ordinary and partial differential equations Finite difference methods Vibrating string problem

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Improved Scheduling Strategies for Agent-Client-Server Middleware

Improved Scheduling Strategies for Agent-Client-Server Middleware. Jack Dongarra Emmanuel Jeannot Keith Seymour Asim Yarkhan INRIA-LORIA-ICL U. Tennessee ICL Nancy, France Knoxville, USA CCGSC 09/13/2006. Outline. Introduction

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Heat Distribution Problem An area has known temperatures along each of its edges.

Heat Distribution Problem An area has known temperatures along each of its edges. Find the temperature distribution within. 6.41. Divide area into fine mesh of points, h i,j .

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Communication operations

Communication operations. Efficient Parallel Algorithms COMP308. Communication time. Communication requires 3 costs: 1. Static start up time ( t s ): It is the time required to handle a message at the sending processor 2. Per-hop time ( t h ) with l the #Links that the message passes

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Interconnects

Interconnects. Shared address space and message passing computers can be constructed by connecting processors and memory unit using a variety of interconnection network Dynamic/Indirect networks : cross bar bus based Static/Direct networks : completely connected star connected linear array

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A Volumetric 3-D FFT on Clusters of Multi-Core Processors

A Volumetric 3-D FFT on Clusters of Multi-Core Processors. Daisuke Takahashi University of Tsukuba, Japan. Outline. Background Objectives Approach 3-D FFT Algorithm Volumetric 3-D FFT Algorithm Performance Results Conclusion. Background.

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WP3 meeting in Milan, November 30

WP3 meeting in Milan, November 30. Riadh BEN HALIMA & Khalil DRIRA LAAS-CNRS. Outline. Structural Reconfiguration Architecture Prototype implementation Grid experimentation First experience with Gird5000 Some Monitoring Data analysis. Structural reconfiguration.

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Evaluating Parallel Programs

Evaluating Parallel Programs. Cluster Computing, UNC-Charlotte, B. Wilkinson. Sequential execution time , t s : Estimate by counting computational steps of best sequential algorithm.

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WP3 meeting in Milan, November 30

WP3 meeting in Milan, November 30. Riadh BEN HALIMA & Khalil DRIRA LAAS-CNRS. Outline. Structural Reconfiguration Architecture Prototype implementation Grid experimentation First experience with Gird5000 Some Monitoring Data analysis. Structural reconfiguration.

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M-GEAR: Gateway-Based Energy-Aware Multi-Hop Routing Protocol

M-GEAR: Gateway-Based Energy-Aware Multi-Hop Routing Protocol. Qaisar Nadeem Department of Electrical Engineering Comsats Institute of Information Technology, Islamabad. Sep 07, 2013. Outline. Introduction Motivation M-GEAR: Gateway-Based Energy-Aware Multi-Hop Routing Protocol

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Parallel Computing Platforms Ananth Grama, Anshul Gupta, George Karypis, and Vipin Kumar

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IFESTOS: A KB System for POEMS

IFESTOS: A KB System for POEMS. Elias Houstis, John Rice, Ann Catlin, Naren Ramakhrisnan, and V. Verykios Purdue University Department of Computer Sciences August 98. IFESTOS Architecture diagram. IFESTOS Goals for POEMS KB.

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Shelly Malik Siti Zubeidah Kadir Wee Kim Wee School of Communication and Information

The Use of Mobile Phone & Internet in Transnational Mothering among Migrant Domestic Workers in Singapore. Shelly Malik Siti Zubeidah Kadir Wee Kim Wee School of Communication and Information 9 December 2011. CPRsouth6, Bangkok, 2011 . 1.5 million women. Impact of separation.

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Listening and Feedback

Listening and Feedback. Listening. What is the difference between listening and hearing? 3 sets of skills involved in listening: cognitive motivational social. Why is Listening Important?. Amount of time devoted to it: 80% of each day engaged communicating

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