PPT-Instruction Prefetching

Smruti R Sarangi Contents Motivation for Prefetching Simple Schemes Recent Work Proactive Instruction Fetching Return Address Stack Directed Prefetching Pentium 4 Trace Cache. g ADD eax5 Add 5 to contents of accumulator No memory reference to fetch data Fast Can have limited range in machines with fixed length instructions Immediate Addressing and Small Operands A great many immediate mode instructions use small operands 8 Abdullah, Ibrahim. Ali, . Javeed. Budhram. , . Dharmendra. Galiana. , Thomas. Monegro. , Wesley. Silva, Frank. 11.1 Addressing. Abdullah, Ibrahim. Budhram. , . Dharmendra. Addressing Modes. Addressing mode:. Ankit Sethia. 1. , Ganesh Dasika. 2. , . Mehrzad. Samadi. 1. ,. Scott Mahlke. 1. 1-University of Michigan. 2-ARM R&D Austin. 1. Introduction. 2. High Throughput – 1 . TeraFlop. . High Energy Efficiency. The Prevention That Avoids Intervention. Where do these ideas come from?. Why. do we need a core?. A core Reading program provides a system of instruction for students as they move through grade levels.. Beginning Teacher Symposium. WCU. August 14, 2013. Kristin Menickelli. kmenickelli@jcpsmail.org. This is the value of the teacher, who looks at a face and says there's something behind that and I want to reach that person, I want to influence that person, I want to encourage that person, I want to enrich, I want to call out that person who is behind that face, behind that color, behind that language, behind that tradition, behind that culture. I believe you can do it. I know what was done for me. —Maya Angelou. . VDOE . English SOL Institute . October 30, 2014. Paul Teller . ESOL Liasion K-5. . Chesterfield County Public Schools. Patsy Stine. , . ESOL Teacher 3-5. Elizabeth Scott Elementary. Chesterfield County Public Schools. Seth Pugsley. Predicting the Future. Where have we seen prediction before?. Does it always work?. Prefetching is prediction. Predict which cache line will be used next, and place it in the cache before it is used. Adwait Jog. , Onur Kayiran, Asit Mishra, Mahmut Kandemir, Onur Mutlu, Ravi Iyer, Chita Das . Multi-threading. Caching. Prefetching . Main Memory. . Improve. . Replacement . Policies. Parallelize your code!. Smruti. R. Sarangi. Data Prefetching. Instead of . instructions . let us now . prefetch. . data. Important distinction. Instructions. are fetched into the in-order part of the OOO pipeline. Data. is fetched into the OOO pipeline. Exploiting Unique Opportunities. Ahmad . Lashgar. and . Amirali. . Baniasadi. ECE Department. University of Victoria. 1. Overview. Prefetching Challenges:. Prefetching accuracy. Timeliness. Bandwidth control. To Challenge all Learners. What is Tiered Instruction?. . Tiered instruction is a way of teaching one concept and meeting the different learning needs in a group. . Teachers may vary:. task. process. One goal of instruction set design is to minimize instruction length Many instructions were designed with compilers in mind. Determining how operands are addressed is a key component of instruction set MANA an Instruction PrefetcherAli Ansari SharifFatemehGolshanSharifPejmanLotfi-Kamran IPMHamid Sarbazi-Azad Sharif IPM2/ 18Instruction Cache MissesServer applicationsoMulti-megabyte instruction footpr 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….