PDF-Chapter Cache Memory Computer Organization and Architecture Note Appendix A will not

Characteristics of Memory Systems Location CPU Registers and control unit memory Internal Main memory and cache External Storage devices paper tape cards tapes discs flash cards etc Capacity Word size The natural unit of organisation Typically numbe. Although some items may not always be in stock new and used items will be restocked as quickly as possible Items are distributed on a first come first served basis 574165745557463573765744357441574545737657417573765744857445574525745657376 574105739 Avg Access Time 2 Tokens Number of Controllers Average Access Time clock cyles brPage 16br Number of Tokens vs Avg Access Time 9 Controllers Number of Tokens Average Access Time clock cycles brPage 17br brPage 18br Multicore programming and Applications. February 19, . 2013. Agenda. A little reminder of the 6678. Purpose of MPAX part of XMC. CorePac MPAX registers. CorePac MAR registers. Teranet Access MPAX registers. Memory Wall . The . growing disparity of speed between CPU and memory outside the CPU . chip. Bandwidth wall: limited . communication bandwidth beyond chip . boundaries. Solution . Memory hierarchy . Introduction. 1. What this class is about. Coordination of many . levels of abstraction. ECE 154A. I/O system. Processor. Compiler. Operating. System. (Mac OSX). Application (ex: browser). Digital Design. Table 4.1 . Key . Characteristics of Computer Memory Systems. . © 2016 Pearson Education, Inc., Hoboken, NJ. All rights reserved.. Characteristics of Memory Systems. Location. Refers to whether memory is internal and external to the computer. and the Implications for Performance Optimization. Samuel Williams. 1,2. Jonathan Carter. 2. , Richard Vuduc. 3. , Leonid Oliker. 1,2. , John Shalf. 2. , . Katherine Yelick. 1,2. , James Demmel. 1,2. Lecture for CPSC 5155. Edward Bosworth, Ph.D.. Computer Science Department. Columbus State University. The Simple View of Memory. The simplest view of memory is . that presented . at the ISA (Instruction Set Architecture) level. At this level, memory is a . Direct-mapped caches. Set-associative caches. Impact of caches on performance. CS 105. Tour of the Black Holes of Computing. Cache Memories. C. ache memories . are small, fast SRAM-based memories managed automatically in hardware. Lecture 19. Summary. Benjamin Lee. Electrical and Computer Engineering. Duke University. www.duke.edu/~bcl15. www.duke.edu/~bcl15/class/class_ece252fall11.html. ECE 252 / CPS 220. 2. ECE252 . Administrivia. Introduction. Khaled N. Khasawneh, PhD Student. Department of Computer Science and Engineering. kkhas001@ucr.edu. Welcome!. 2. About me. Born and raised in . Jordan. Jordan University of Science & Technology, Jordan. 2. Educational objectives The MESI protocol simulator is widely used in several courses about Computer Architecture, Computer Design and Multiprocessor Systems in the University of Cordoba. The syllab Lecture 19. April . 4. th. , . 2012. Bus-Based Shared Memory (. Con’t. ). Distributed Shared Memory. Prof John D. Kubiatowicz. http://www.cs.berkeley.edu/~kubitron/cs252. Recall: Natural Extensions of Memory System. Stephan Meier. Some slides authored by Tyler Huberty, Onur Mutlu (used with permission). Prefetching. Outline. Outline. Motivation. Instruction prefetching. Data prefetching. Research directions. A few definitions before we start….