PPT-Chip-Multiprocessor Caches:

Placement and Management Andreas Moshovos University of TorontoECE Short Course University of Zaragoza July 2009 Most slides are based on or directly taken from material and slides by the original paper authors. coprocessor 8087 2 closely coupled 8089 3 loosely coupled Multibus Coprocessors and closely coupled configurations are similar in that both the CPU and the external processor share Memory IO system Bus bus control logic Clock generator Closely Although large caches can significantly improve performance they have the potential to increase power consumption As feature sizes shrink the dominant component of this power loss will be leakage However during a fixed period of time the activ ity i Tullsen University of California San Diego asvenkattullsencsucsdedu Abstract Heterogeneous multicore architectures have the potential for high performance and energy ef64257ciency These architec tures may be composed of small poweref64257cient cores caches and data caches are always identical in size or differ by a factor of 2X, but no more. The primary caches range from 8 KB to 128 KB with SA ranging from direct mapped to 8-way. Small instruct Page 1 Snoop-Based Multiprocessor Design I: Base DesignTodd C. Mowry CS 418 CS 418 Feb. 23 & 24, 2011 Design Goalscostdepend on CorrectnessHigh PerformanceOften at oddsHigh Performance = multiple ou Cache overview. 4 Hierarchy questions. More on Locality. Please bring these slides to the next lecture!. Projects 2 and 3. Regrade. issues for 3. Please resubmit and come to office hours with a diff.. The Art of Multiprocessor Programming. by Maurice Herlihy & . Nir. . Shavit. Concurrent Skip Lists. 2. Set Object Interface. Collection of elements. No duplicates. Methods. add(). a new element. Companion slides for. The Art of Multiprocessor Programming. by Maurice . Herlihy. & . Nir. . Shavit. TexPoint fonts used in EMF. . Read the TexPoint manual before you delete this box.: . A. A. The Art of Multiprocessor Programming. by Maurice Herlihy & Nir Shavit. Art of Multiprocessor Programming. 2. Review: . Amdahl. '. s . Law. Speedup =. Shared Data Structures. 75%. Unshared. 25%. Shared. Companion slides for. The Art of Multiprocessor Programming. by Maurice Herlihy & Nir Shavit. Art of Multiprocessor Programming. 2. A Shared Pool. Put. Insert item. block if full. Remove. Remove & return item. 2. Mutual Exclusion. We will clarify our understanding of mutual exclusion. We will also show you how to reason about various properties in an asynchronous concurrent setting. Art of Multiprocessor Programming. 1. Chapter 10. Multiprocessor and. Real-Time Scheduling. BYU CS 345. Chapter 10 - Multiprocessor and Read-Time Scheduling. 2. Classifications of Multiprocessors. Loosely coupled multiprocessor.. each processor has its own memory and I/O channels. Analysis of a Chip Multiprocessor Using Scientific Applications Gilbert Hendry Aleksandr Biberman Johnnie Chan Benjamin G. Lee Luca P. Carloni Keren Bergman Shoaib Kamil Marghoob Mohiyuddin Companion slides for. The Art of Multiprocessor Programming. by Maurice Herlihy & Nir Shavit. Art of Multiprocessor Programming. 2. 2. The Five-Fold Path. Coarse-grained locking. Fine-grained locking.