Title :
A novel energy-oriented reconfigurable on-chip unified memory architecture based on Cache Behavior Phase Graph
Author :
Wu Jianping ; Ling Ming ; Zhang Yang ; Mei Chen ; Wang Huan
Author_Institution :
Nat. ASIC Syst. Eng. Res. Center, Southeast Univ., Nanjing, China
Abstract :
A novel dynamic reconfigurable on-chip unified memory hierarchy, RcfgMem (Reconfigurable on-chip Unified memory) is introduced in this paper. The given resource of RcfgMem can be divided into certain size of Cache and SPM (Scratch-pad Memory) by configuration. Then, a dynamic reconfiguration algorithm is provided based on CBPG (Cache Behavior Phase Graph). The characteristics of program execution is studied, and a phase detect logic based on basic block vector is used to check the phases´ Eigenvalues such as IPC etc. The experimental and exploration results showed that, compared with 4kB (kBytes) 4-way set-associative traditional I-Cache, the total energy consumption of 4kB RcfgMem can be reduced by 15.98% on average and up to 34.03% with a small performance promotion.
Keywords :
cache storage; eigenvalues and eigenfunctions; energy consumption; integrated circuit design; low-power electronics; memory architecture; reconfigurable architectures; CBPG; IPC; RcfgMem; SPM; basic block vector; cache behavior phase graph; dynamic reconfiguration algorithm; eigenvalues; energy consumption; energy-oriented unified memory architecture; four-way set-associative traditional I-Cache; phase detect logic; reconfigurable on-chip unified memory architecture; scratch-pad memory; Algorithm design and analysis; Energy consumption; Heuristic algorithms; Mathematical model; Memory management; Optimization; System-on-chip; Cache Behavior Phase Graph; Dynamic SPM allocation; Low energy; Reconfigurable on-chip unified Memory;
Conference_Titel :
ASIC (ASICON), 2013 IEEE 10th International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4673-6415-7
DOI :
10.1109/ASICON.2013.6812000
