'Memory accesses' diaporamas de présentation

Stall-Time Fair Memory Access Scheduling

Stall-Time Fair Memory Access Scheduling. Onur Mutlu and Thomas Moscibroda Computer Architecture Group Microsoft Research. Multi-Core Systems. Multi-Core Chip. CORE 0. CORE 1. CORE 2. CORE 3. L2 CACHE. L2 CACHE. L2 CACHE. L2 CACHE. unfairness. Shared DRAM Memory System.

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L19: Advanced CUDA Issues

L19: Advanced CUDA Issues. November 10, 2009. Administrative. CLASS CANCELLED, TUESDAY, NOVEMBER 17 Guest Lecture, November 19, Ganesh Gopalakrishnan Thursday, November 12 Turn in 1 page project description (next few slides) handin cs4961 pdesc <file, ascii or PDF ok>

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Vector Processing

Vector Processing. Review: Problems with conventional approach. Limits to conventional exploitation of ILP: 1) pipelined clock rate : at some point, each increase in clock rate has corresponding CPI increase (branches, other hazards)

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Chapter 2: Performance

Chapter 2: Performance. Measure, Report, and Summarize Make intelligent choices See through the marketing hype

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Shared Memory and Shared Memory Consistency

Shared Memory and Shared Memory Consistency. What is the difference between eager and lazy implementations of relaxed consistency? Which models for relaxed consistency are used in shared MPSoC and multicore nowadays? What is page-based shared virtual memory?

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Memory Management - III

CS423UG Operating Systems . Memory Management - III. Indranil Gupta Lecture 15 Sep 28, 2005. Agenda. Page Tables and TLB Multi-level Paging Inverted Page Table Protection. Virtual-To-Physical Lookups. Programs only know virtual addresses

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Memory Protection: Kernel and User Address Spaces

Memory Protection: Kernel and User Address Spaces. Background Address binding How memory protection is achieved. . Background and concepts. Raw memory A large array of words or bytes Each word/byte has its own address.

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Memory Management

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Memory Part II

Memory Part II. Memory Technologies. 2 ways to store a state electrically Determine if charge is present Determine if current will flow Can also be done magnetically, though in modern computers this is mainly used for secondary memory due to it being one step removed from electricity.

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Extra Cache Coherence Examples

Extra Cache Coherence Examples. In the following examples there are a couple questions. You can answer these for practice by emailing Colin at cdbryan@gmail.com . MSI Protocol.

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Lecture 16 Chapter 8: Main Memory

Lecture 16 Chapter 8: Main Memory. Chapter 8: Memory Management. Background Swapping Contiguous Memory Allocation Paging Structure of the Page Table Segmentation Example: The Intel Pentium. Background.

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Paging

Paging. Logical address space of a process can be noncontiguous; process is allocated physical memory whenever the latter is available. Divide physical memory into fixed-sized blocks called frames (size is power of 2, between 512 bytes and 8192 bytes).

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A Lock-Free, Cache-Efficient Multi-Core Synchronization Mechanism for Line-Rate Network Traffic Monitoring

A Lock-Free, Cache-Efficient Multi-Core Synchronization Mechanism for Line-Rate Network Traffic Monitoring. Patrick P. C. Lee 1 , Tian Bu 2 , Girish Chandranmenon 2 1 The Chinese University of Hong Kong 2 Bell Labs, Alcatel-Lucent April 2010. Outline. Motivation

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CS 395 Last Lecture Summary, Anti-summary, and Final T houghts

CS 395 Last Lecture Summary, Anti-summary, and Final T houghts. Summary (1) Architecture. Modern architecture designs are driven by energy constraints Shortening latencies is too costly, so we use parallelism in hardware to increase potential throughput

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CS 162 Computer Architecture Lecture 3: Pipelining Contd.

CS 162 Computer Architecture Lecture 3: Pipelining Contd. Instructor: L.N. Bhuyan www.cs.ucr.edu/~bhuyan/cs162. a d d. Sign Extend. Single Cycle Datapath (From Ch 5). M u x. a d d. 4. << 2. PCSrc. MemWrite. 25:21. Read Reg1. Read Addr. P C. Read data. Read data1.

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Computer Architecture Memory Coherency & Consistency

Computer Architecture Memory Coherency & Consistency . By Dan Tsafrir, 11/4/2011 Presentation based on slides by David Patterson, Avi Mendelson, Lihu Rappoport, and Adi Yoaz. Processor 1. Processor 2. L1 cache. L1 cache. L2 cache (shared). Memory. Coherency - intro .

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Advanced Algorithms for Fast and Scalable Deep Packet Inspection

Advanced Algorithms for Fast and Scalable Deep Packet Inspection. Sailesh Kumar Jonathan Turner John Williams. Why Regular Expressions Acceleration?. RegEx are now widely used Network intrusion detection systems, NIDS Layer 7 switches, load balancing

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Lecture 5 Review of Memory Hierarchy (Appendix C in textbook)

Computer Architecture ?????. Lecture 5 Review of Memory Hierarchy (Appendix C in textbook). Ping-Liang Lai ( ??? ). Outline. C.0 Review From Last Lecture C.1 Introduction C.2 Cache Performance C.3 Six Basic Cache Optimizations C.4 Virtual Memory

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Lecture 20: Virtual Memory

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