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seminars:seminar_4_24_15 [2017/09/20 22:02] (current)
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 +====== Cooperative Memory Systems ======
 +==== Saugata Ghose (CMU) ====
 +== Wednesday, April 29, 4:00 PM to 5:00 PM ==
 +== CIC Panther Hollow ==
 +
 +===== Abstract =====
 +
 +As memory systems continue to be a significant bottleneck for improving performance,​ architects have turned to application-aware memory systems to make more sophisticated decisions. ​ Much of this work has focused on characterizing and inferring traits about memory requests from within the memory system itself. ​ While such memory systems are self-sufficient,​ they only capture a limited view of overall system execution.
 +
 +This talk focuses on memory systems that cooperate more directly with higher levels of the architecture stack. ​ These higher levels assist in memory system decisions by providing hints about memory behavior to the memory system itself. ​ For example, an out-of-order multicore processor can perform a simple characterization of which load requests are more critical to overall system execution, which can be used within the memory controller to prioritize DRAM scheduling decisions. ​ We will discuss how cooperation can be exploited using low-complexity hardware for a number of memory system decisions, including scheduling, prefetching,​ and DRAM addressing, and can deliver performance improvements for both parallel applications and multiprogrammed workloads.
 +
 +
 +===== Bio =====
 +
 +Saugata Ghose is a postdoctoral research associate with the SAFARI Research Group at CMU, advised by Onur Mutlu. ​ His current research interests are in application-aware memory and storage systems. ​ He received his Ph.D. from Cornell University in 2014, where he was the recipient of the NDSEG Fellowship and the ECE Director'​s Ph.D. Teaching Assistant Award.