PPT-The Memory Hierarchy CSCE312: Computer Organization

10 Nov 2015 Instructor Rabi Mahapatra Slide Source Randal E Bryant and David R OHallaron Today Storage technologies and trends Locality of reference Caching in the memory hierarchy. g a core dump Semiconductors are almost universal today Memory Cells Properties Exhibit two stable or semi stable states representing 1 and 0 Capable of being written to at least once to set state Capable of being read to sense the state Memory Cell 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 In our simple model the memory system is a linear array of bytes and the CP U can access each memory location in a constant amount of time While this is an effective model as f ar as it goes it does not re64258ect the way that modern systems really COS 116, Spring . 2012. Adam Finkelstein. [Bob Warfield]. [Jarred Walton]. Problem:. Retrieval from memory is relatively slow.. Solution:. . “Cache”. the tired librarian. 1000 . checkouts or returns . All computers perform IPOS. Here, we concentrate on how IPOS is carried out through the fetch-execute cycle. This requires that we study. the structure of the components in the computer. the function of those components. and Architecture. 9. th. Edition. Chapter 3. A Top-Level View of Computer . Function and Interconnection. Computer Components. Contemporary computer designs are based on concepts developed by John von Neumann at the Institute for Advanced Studies, Princeton. CprE 381 Computer Organization and Assembly Level Programming, Fall 2013. Zhao Zhang. Iowa State University. Revised from original slides provided . by MKP. Chapter 5 — Large and Fast: Exploiting Memory Hierarchy — . and Architecture. 9. th. Edition. Chapter 4. Cache Memory. Key Characteristics of Computer Memory Systems. Table 4.1 Key Characteristics of Computer Memory Systems. . Characteristics of Memory Systems. Hierarchy with Hi-Spade. . Phillip B. Gibbons. Intel Labs Pittsburgh. September 22, 2011. Abstract. The . goal of the Hi-Spade project is to enable a hierarchy-savvy approach to algorithm design and systems for emerging parallel hierarchies. Good performance often requires effective use of the cache/memory/storage hierarchy of the target computing platform. Two recent trends---pervasive multi-cores and pervasive flash-based SSDs---provide both new challenges and new opportunities for maximizing performance. The project seeks to create abstractions, tools and techniques that (. 11. th. Lecture, October 2, 2018. Today. Storage technologies and trends. Locality of reference. Caching in the memory hierarchy. Random-Access Memory (RAM). Key features. RAM . is traditionally packaged as a chip.. 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 . Chapter 5 — Large and Fast: Exploiting Memory Hierarchy — . 2. Memory Technology. Static RAM (SRAM). 0.5ns – 2.5ns, $2000 – $5000 per GB. Dynamic RAM (DRAM). 50ns – 70ns, $20 – $75 per GB. …borrowed from D. Spiegel (with modifications). Computer Organizaton. Top_Level. Structure. The von-Neumann Machine. Microprocessors. Machine Architecture Types. Stack Machine. Accumulator Machine. Contents. Date. . :. . 2013/09/17. Source. . :. . SIGIR’13. Authors : . Zhu, . Xingwei. . . Ming Zhao-Yan. . Zhu, . Xiaoyan. . Chua, . Tat-. Seng. Advisor : . Dr.Jia. -ling, . Koh. Speaker : Wei, Chang.