FlexRAM Architecture Design Parameters
Seung-Moon Yoo, Jose Renau, Michael C.Y. Huang, Josep Torrellas · 2002
Steady advances in VLSI technology and, in particular, Merged Logic and DRAM (MLD) technology are helping Processor-In-Memory (PIM) chips become more feasible and attractive. FlexRAM is an ongoing PIM project at the University of Illinois. In this report, we summarize some architectural aspects of the system and provide a detailed study of the energy consumption of the chip. In our analysis, we break down the system into different components and we establish energy consumption models accordingly. We verify the numbers produced in our model against other studies of existing chips and find that the results agree. This report also describes several techniques for dynamic energy management that we include in our PIM system. 1