'Write miss' diaporamas de présentation

CPE 631 Session 23: Multiprocessors (Part 4)

CPE 631 Session 23: Multiprocessors (Part 4). Department of Electrical and Computer Engineering University of Alabama in Huntsville. Review: Bus Snooping Topology. P0. P1. Pn. C - Cache M - Memory IO - Input/Output. C. C. C. IO. M. Snoopy-Cache State Machine. CPU Read hit.

621 views • 62 slides

CSE 820 Graduate Computer Architecture Directory Based Multiprocessors

CSE 820 Graduate Computer Architecture Directory Based Multiprocessors. Based on slides by David Patterson University of California, Berkeley. Review. Caches contain all information on state of cached memory blocks

503 views • 50 slides

Shared Memory Multiprocessors

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CPE 631 Lecture 20: Multiprocessors

CPE 631 Lecture 20: Multiprocessors. Aleksandar Milenkovi ? , milenka@ece.uah.edu Electrical and Computer Engineering University of Alabama in Huntsville. Review: Centralized Shared-Memory Architecture. Small processor counts makes it possible

375 views • 37 slides

Performance of Cache Memory

Performance of Cache Memory. Cache Performance Average Memory Access Time (AMAT), Memory Stall cycles. The Average Memory Access Time ( AMAT ): The number of cycles required to complete an average memory access request by the CPU.

558 views • 35 slides

ECE562 Advanced Computer Architecture Prof. Honggang Wang

ECE Department University of Massachusetts Dartmouth 285 Old Westport Rd. North Dartmouth, MA 02747-2300. Ch4. Multiprocessors & Thread-Level Parallelism 2. SMP ( S ymmetric shared-memory M ulti p rocessors). ECE562 Advanced Computer Architecture Prof. Honggang Wang.

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ECE562/468 Advanced Computer Architecture Prof. Honggang Wang

ECE Department University of Massachusetts Dartmouth 285 Old Westport Rd. North Dartmouth, MA 02747-2300. Ch4. Multiprocessors & Thread-Level Parallelism 2. SMP ( S ymmetric shared-memory M ulti p rocessors). ECE562/468 Advanced Computer Architecture Prof. Honggang Wang.

331 views • 23 slides

Parallel and Distributed Processing CSE 8380

Parallel and Distributed Processing CSE 8380. April 7, 2005 Session 23. Contents. Review of Directory Based Protocols Chained Directory Centralized Directory Invalidate Scalable Coherent Interface Stanford Distributed Directory Shared Memory Programming. Chained Directory.

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CS 213 Lecture 10: Multiprocessor 3: Directory Organization

CS 213 Lecture 10: Multiprocessor 3: Directory Organization. Larger MPs. Separate Memory per Processor Local or Remote access via memory controller 1 Cache Coherency solution: non-cached pages Alternative: directory per cache that tracks state of every block in every cache

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CS 213 Lecture 10: Multiprocessor 3: Directory Organization

CS 213 Lecture 10: Multiprocessor 3: Directory Organization. Larger MPs. Separate Memory per Processor Local or Remote access via memory controller 1 Cache Coherency solution: non-cached pages Alternative: directory per cache that tracks state of every block in every cache

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Lecture: Coherence

Lecture: Coherence. Topics: snooping-based coherence, directory-based coherence protocols (Sections 5.1-5.5). Cache Coherence Protocols. Directory-based: A single location (directory) keeps track of the sharing status of a block of memory

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A performance comparison of RAID-5 and Log-Structured-Arrays

A performance comparison of RAID-5 and Log-Structured-Arrays. Jai Menon. Outline of the talk. LSA Introduction Analyze RAID-5 performance using an analytical model. Examine LSA performance.

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Cache Coherence (controllers snoop on bus transactions)

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CS213 Parallel Processing Architecture Lecture 7: Multiprocessor Cache Coherency Problem

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Cache Coherence and Memory Consistency

Cache Coherence and Memory Consistency. An Example Snoopy Protocol. Invalidation protocol, write-back cache Each block of memory is in one state: Clean in all caches and up-to-date in memory ( Shared ) OR Dirty in exactly one cache ( Exclusive ) OR Not in any caches

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CS162 Computer Architecture Lecture 15: Symmetric Multiprocessor: Cache Protocols

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