'Collective communication' diaporamas de présentation

1.26k views • 115 slides

Parallel Programming & Cluster Computing Applications and Types of Parallelism

Parallel Programming & Cluster Computing Applications and Types of Parallelism. Henry Neeman, University of Oklahoma Charlie Peck, Earlham College Tuesday October 11 2011. Outline. Monte Carlo: Client-Server N-Body: Task Parallelism Transport: Data Parallelism. Monte Carlo: Client-Server.

1.04k views • 86 slides

Automatically Tuning Collective Communication for One-Sided Programming Models

Automatically Tuning Collective Communication for One-Sided Programming Models. Rajesh Nishtala Ph.D. Dissertation Talk Committee: Katherine Yelick (chair), James Demmel, Panos Papadopoulos. Observations.

965 views • 81 slides

Automatically Tuning Collective Communication for One-Sided Programming Models

Automatically Tuning Collective Communication for One-Sided Programming Models. Rajesh Nishtala Ph.D. Dissertation Talk Committee: Katherine Yelick (chair), James Demmel, Panos Papadopoulos. Observations.

938 views • 81 slides

Advanced Charm++ Tutorial

Advanced Charm++ Tutorial. Charm Workshop Tutorial Sameer Kumar Orion Sky Lawlor charm.cs.uiuc.edu 2004/10/19. How to Become a Charm++ Hacker. Advanced Charm++ Advanced Messaging Writing system libraries Groups Delegation Communication framework Advanced load-balancing Checkpointing

1.13k views • 73 slides

Writing MPI Programs for Odyssey

Writing MPI Programs for Odyssey. Teresa Kaltz, PhD Research Computing. FAS IT Research Computing. Provide compute resources to FAS and SEAS for research purposes Leverage FAS IT infrastructure Architect and manage RC resources Support both shared and dedicated hardware

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Lecture 2

Lecture 2. Message Passing Using MPI (Foster Chapter 8). Background The message-passing model Origins of MPI and current status Sources of further MPI information Basics of MPI message passing Hello, World! Fundamental concepts Simple examples in Fortran and C.

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NCKU HPC Education & Training

NCKU HPC Education & Training. 2008.03.27. Jih-Ching Chang bluesun@mail.ncku.edu.tw. Outline. HPC Introduction Easy User Guide of NCKU HPC MPI. Shared Memory VS Distributed Memory OpenMP MPI. Infrastructure and Architecture. IB. 1GE. FC. TANET. Hardware.

850 views • 66 slides

High-Performance Grid Computing and Research Networking

High-Performance Grid Computing and Research Networking. Algorithms on a Ring. Presented by Xing Hang Instructor: S. Masoud Sadjadi http://www.cs.fiu.edu/~sadjadi/Teaching/ sadjadi At cs Dot fiu Dot edu. 1. Acknowledgements.

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Ernie Chan

564 views • 34 slides

L18: MPI, cont.

L18: MPI, cont. November 10, 2011. Administrative. Class cancelled, Tuesday, November 15 Guest Lecture, Thursday, November 17, Ganesh Gopalakrishnan CUDA Project 4, due November 21 Available on CADE Linux machines (lab1 and lab3) and Windows machines (lab5 and lab6)

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User Level Failure Mitigation

User Level Failure Mitigation. Fault Tolerance Working Group September 2013, MPI Forum Meeting Madrid, Spain. Motivation (Same as MPI has always been). Allow wide range of fault tolerance techniques Introduce minimal changes to MPI Prioritize functionality over ease-of-use

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Collective Operations Dr. Stephen Tse stse@forbin.qc 908-872-2108

Lesson 12. Collective Operations Dr. Stephen Tse stse@forbin.qc.edu 908-872-2108. Collective Communication. A collective communication is A communication pattern that involves all the processes in a communicator It involves more than two processes.

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CS 584

CS 584. Message Passing. Based on multi-processor Set of independent processors Connected via some communication net All communication between processes is done via a message sent from one to the other. MPI. Message Passing Interface Computation is made of: One or more processes

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MPI (continue)

MPI (continue). An example for designing explicit message passing programs Advanced MPI concepts. An design example (SOR). What is the task of a programmer of message passing programs? How to write a shared memory parallel program? Decide how to decompose the computation into parallel parts.

379 views • 25 slides

Optimizing Collective Communication for Multicore

Optimizing Collective Communication for Multicore. By Rajesh Nishtala. What Are Collectives. An operation called by all threads together to perform globally coordinated communication May involve a modest amount of computation, e.g. to combine values as they are communicated

353 views • 24 slides

Optimizing Threaded MPI Execution on SMP Clusters

Optimizing Threaded MPI Execution on SMP Clusters. Hong Tang and Tao Yang Department of Computer Science University of California, Santa Barbara. Parallel Computation on SMP Clusters. Massively Parallel Machines ? SMP Clusters

282 views • 21 slides

GridMPI ? Grid Enabled MPI

GridMPI ? Grid Enabled MPI. Yutaka Ishikawa University of Tokyo and AIST. Motivation. MPI has been widely used to program parallel applications Users want to run such applications over the Grid environment without any modifications of the program

386 views • 20 slides

Nonblocking File Manipulation Routines

Nonblocking File Manipulation Routines. The HDF Group. Proposal. MPI_File_iopen ( MPI_Comm comm , char* filename, int amode , MPI_Info info, MPI_File * fh , MPI_Request * req ); MPI_File_iclose ( MPI_File fh , MPI_Request * req );

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Non-Blocking Collective I/O Routines

209 views • 7 slides