SC13 Home > SC13 Schedule > SC13 Presentation - Local Memory Store - A Multi Purpose Memory Replacing On-Chip Cache

SCHEDULE: NOV 16-22, 2013

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Local Memory Store - A Multi Purpose Memory Replacing On-Chip Cache

SESSION: Doctoral Showcase - Early Research Showcase

EVENT TYPE: Doctoral Showcase - Early Research Showcases

TIME: 3:30PM - 5:00PM

SESSION CHAIR: Wojtek James Goscinski

Presenter(s):Nafiul A. Siddique

ROOM:601/603

ABSTRACT:
Cache performance is poor for graph based applications due to high miss rate and excess data transaction to on-off chip memory. To improve the performance it is required to store the working set in an on-chip memory as scratchpad memory (SPM). SPM is a fast on-chip memory mapped into a predefined address space. But predicting the address range and implementing appropriate allocation technique is hard. We propose a hardware controlled memory (Local Memory Store (LMStr)) that stores different sizes of blocks and can simultaneously be partitioned into and used as scratchpad and/or cache. We introduce a weighted based static searching strategy that predicts the block references to store in scratchpad space. To investigate the performance benefits of LMStr, we have created a functional simulator, and a block generator. Our results show that the miss rate reduces, but the number of words fetched to/from main memory, and overhead increases in LMStr.

Chair/Presenter Details:

Wojtek James Goscinski (Chair) - Monash University

Nafiul A. Siddique - New Mexico State University

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