PPT-Caches for Accelerators

ECE 751 Brian Coutinho David Schlais Gokul Ravi amp Keshav Mathur Summary Fact Accelerators gaining popularity to improve performance and energy efficiency Problem Accelerators with scratchpads require DMA calls to satisfy memory requests among other overheads. 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 Particle accelerators. It is a . device . that provides . forces on charge particles – by some combinations of electric & magnetic fields,. and brings the ions to high speed & kinetic energy. Adwait Jog. †. , . Asit K. Mishra‡, Cong Xu†, Yuan Xie†, N. Vijaykrishnan†, Ravi Iyer‡, Chita R. Das†. †. The Pennsylvania State University . 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.. (. EuroNNAc. 2. ):. WP7. R. Assmann. (DESY), M. . Ferrario. (INFN . Frascati. ), . B. . Holzer. (CERN), J. . Osterhoff. (DESY), . A. . Seryi. (JAI, Oxford), A. . Specka. (. Ecole. . polytechnique. ITS Research Computing. Mark Reed . Objectives. Learn why computing with accelerators is important. Understand accelerator hardware. Learn what types of problems are suitable for accelerators. Survey the programming models available. CS 3410, Spring 2011. Computer Science. Cornell University. See P&H . 5.2 (writes), 5.3, 5.5. Announcements. HW3 available due . next. Tuesday . HW3 has been updated. . Use updated version.. Work with . February 2015. GEOCACHING. The Modern Treasure Hunt. What is . geocaching. ?. Geocaching.com definition:. “. Geocaching. is a real-world, outdoor treasure hunting game using GPS-enabled devices. Participants navigate to a specific set of GPS coordinates and then attempt to find the . ECE . 751. Brian Coutinho. ,. David Schlais. ,. Gokul Ravi. &. Keshav . Mathur . Summary. Fact. : Accelerators gaining popularity - to improve performance and energy efficiency. Problem. : Accelerators with scratchpads require DMA calls to satisfy memory requests (among other overheads). Theoretical Analysis. . Motivation. . Challenges. Learning Caching Policies with Subsampling . Haonan. Wang, Hao He, Mohammad Alizadeh, Hongzi Mao. . MIT Computer Science and Artificial Intelligence Laboratory. February 2015. GEOCACHING. The Modern Treasure Hunt. What is . geocaching. ?. Geocaching.com definition:. “. Geocaching. is a real-world, outdoor treasure hunting game using GPS-enabled devices. Participants navigate to a specific set of GPS coordinates and then attempt to find the . IFIC, Valencia Oct. 2010. . I. Vila IFCA (CSIC-UC) . Advanced European Infrastructures for Detectors at Accelerators. _Outline. News and current status. AIDA basics. Work Packages. Organization. (G. . Devanz. , R. . Laxdal. , P. . Michelato. ). Mandate. Major initiatives are well underway for ion accelerators for nuclear astrophysics, such as FRIB, RAON and others.  With the success of SNS, high intensity proton accelerator projects are progressing, such as ESS, PIP-II, Indian SNS, along with ADS ambitions, such as CADS and IADS.  The aim of WG2 is to address the major on-going issues for each type of accelerator, how these issues are being addressed, as well as the needed developments. Demonstrated and needed advances in couplers and tuners for both accelerator classes should be included.  Please avoid presentations that give project status summaries - more suited to other conferences. . Eldhose. . Peter*. , . Anuj. . Arora**, . Akriti. . Bagaria. * . and . Dr. . Smruti. . R . Sarangi. *. OONUCA. *IIT Delhi, **CISCO Bangalore. Motivation. Overlay NUCA. Architecture. Results. Understand the problem - Cache.