Name
Abstract | ||
|---|---|---|
Recently-proposed processor microarchitectures for high Memory Level Parallelism (MLP) promise substantial performance gains. Unfortunately, current cache hierarchies have Miss-Handling Architectures (MHAs) that are too limited to support the required MLPthey need to be redesigned to support 1-2 orders of magnitude more outstanding misses. Yet, designing scalable MHAs is challenging: designs must minimize cache lock-up time and deliver high bandwidth while keeping the area consumption reasonable. This paper presents a novel scalable MHA design for high-MLP processors. Our design introduces two main innovations. First, it is hierarchical, with a small MSHR file per cache bank, and a larger MSHR file shared by all banks. Second, it uses a Bloom filter to reduce searches in the larger MSHR file. The result is a highperformance, area-efficient design. Compared to a state-of-the-art MHA on a high-MLP processor, our design speeds-up some SPECint, SPECfp, and multiprogrammed workloads by a geometric mean of 32%, 50%, and 95%, respectively. Moreover, compared to two extrapolations of current MHA designs, namely a large monolithic MSHR file and a large banked MSHR file, all consuming the same area, our design speeds-up the workloads by a geometric mean of 1-18% and 10-21%, respectively. Finally, our design performs very close to an unlimited-size, ideal MHA. |
Year | DOI | Venue |
|---|---|---|
2006 | 10.1109/MICRO.2006.44 | MICRO |
Keywords | Field | DocType |
high-mlp processor,current mha design,larger mshr,large banked mshr file,high memory-level parallelism,scalable cache miss handling,large monolithic mshr file,geometric mean,design speeds-up,area-efficient design,novel scalable mha design,larger mshr file,computer architecture,file sharing,bloom filter,memory level parallelism,multiprogramming,microarchitecture | Bloom filter,Computer architecture,High memory,Computer science,Cache,SPECfp,Parallel computing,SPECint,Computer multitasking,Scalability,Microarchitecture | Conference |
ISSN | ISBN | Citations |
1072-4451 | 0-7695-2732-9 | 19 |
PageRank | References | Authors |
1.17 | 15 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| James Tuck | 1 | 564 | 33.06 |
| Luis Ceze | 2 | 2183 | 125.93 |
| Josep Torrellas | 3 | 3838 | 262.89 |