PPT-On Avoiding Spare Aborts in Transactional Memory

Idit Keidar and Dmitri Perelman Technion 1 SPAA 2009 Transactional Memory Background The emergence of multicore architectures Conventional locking Transactional Memory is a new synchronization abstraction . 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 edu Binoy Ravindran Virginia Tech binoyvtedu Roberto Palmieri Virginia Tech robertopvtedu ABSTRACT Existing distributed transactional system execution model based on globallyconsistent contention management poli cies may abort many transactions that for Linear Algebra and Beyond. Jim . Demmel. EECS & Math Departments. UC Berkeley. 2. Why avoid communication? (1/3). Algorithms have two costs (measured in time or energy):. Arithmetic (FLOPS). Communication: moving data between . Gokarna. Sharma. Costas Busch. Louisiana State University, USA. WTTM 2010 - 2nd Workshop on the Theory of Transactional Memory. 1. TexPoint fonts used in EMF. . Read the TexPoint manual before you delete this box.: . Sandeep. Hans. Agenda. Database Consistency Conditions. STM Consistency Conditions. A different perspective. Consistency with other STM properties.. Conclusion. Database Consistency Conditions. Recoverability. Nelconmotor leading Manufacturer,Exporter, Importer, supplier of all kinds of Automobile spare Parts, Turbocharger Core, Diesel Fuel Injection Spare parts,Center bearing Housing, Turbocharger kits in Delhi, India Rajwar. , R., . Herlihy. , M., and Lai, K. 2005. presented by . VasilyVolkov. , 04/30/08. Motivation. Transactional Memory is good. Never deadlocks. Makes concurrent programming easier. But requires programmer to be aware of. modelling. – An . introduction. Jørn Vatn. Motivation. For single component optimization models (. wrt. . . ) indicates that there might be beneficial to keep a spare in order to reduce the . Idit. . Keidar. and Dmitri Perelman. Technion. 1. SPAA 2009. Transactional Memory – Background. The emergence of multi-core architectures… . Conventional locking… . Transactional Memory is a new synchronization abstraction… . 1. The University of Texas at Austin. The University of Texas at Austin. Ali Shafiee. , A. . Gundu. , M. . Shevgoor. , R. . Balasubramonian. and M. . Tiwari. Shared Memory Controller. Core1. $. MC. Core0. . lyrics by Yip . Harburg. , music by Jay . Gorney. (1931). They used to tell me I was building a dream, and so I followed the mob,. When there was earth to plow, or guns to bear, I was always there right on the job.. Prof. Smruti R. Sarangi. IIT Delhi. Outline. Multicore Processors. Parallel Programming Pardigms. Transactional Memory: Basics. Software Transactional Memory(STM). Hardware Transactional Memory. Multicores in the last Five Years. Spiegelman. *. , Guy . Golan-. Gueta. †. , and Idit Keidar. †*. *. Technion. . †. Yahoo Research. 1. Agenda. Motivation. Concurrent Data Structure Libraries (CDSLs) vs Transactional Memory. Introducing: Transactional Data Structure Libraries (TDSL). Dr. J. . Badshah. University Professor – cum - Chief Scientist. Dairy Engineering Department. Sanjay Gandhi Institute of Dairy Science & Technology, . Jagdeopath. , Patna. (Bihar Animal Sciences University, Patna).