2019 Int'l Conf. on Field Programmable Technology (FPT) 63-71 Dec 2019 [Refereed]
High-performance soft processors in FPGAs have become increasingly important as recent large FPGA systems have relied on soft processors to run many complex workloads, like a network software stack. An OoO superscalar approach is a good candidate ...
Application of Timing Fault Detection and Recovery Method to Rocket
Ushio Jimbo, Ryota Shioya, Masahiro Goshima
xSIG 2019 (cross-disciplinary workshop on computing Systems, Infrastructures, and programminG) May 2019 [Refereed]
25th IEEE Int'l Conf. on Electronics Circuits and Systems (ICECS) 529-532 Dec 2018 [Refereed]
Application of Timing Fault Detection to Rocket Core on FPGA
Ushio Jimbo, Ryota Shioya and Masahiro Goshima
Int'l Workshop on Computer Systems and Architectures (CSA) Nov 2018 [Refereed]
Razor is the most famous technique for timing fault detection/recovery. In this paper, we apply Razor to a RISC-V core, Rocket. Rocket is kind of an out-of-order scalar processor, which causes problems with Razor. We clarify the problem and show h...
IPSJ J. Information Processing 26 696-705 Sep 2018 [Refereed]
The region that includes the register file is a hot spot in high-performance cores that limits the clock frequency. Although multibanking drastically reduces the area and energy consumption of the register files of superscalar processor cores, it ...
Concurrency Control by Combination Use of Lock and Transactional Memory
IPSJ Trans. Advanced Computing Systems 11(1) 1-11 Mar 2018 [Refereed]
A problem to convert a circuit with FFs into one with latches leads to a kind of minimum cut problem with a constraint that each of the paths from the start to terminal points has a single cut edge. Existing minimum cut algorithms do not satisfy t...
