— A realization of the CMOS digitally programmable current follower (DP-CF) suitable for low-voltage high-frequency application is presented. To achieve very low input resistance, it is realized using a modification of a low-input resistance stage as an input stage. To achieve the precise digital control of the current gain, the current division technique… (More)
The NWT was reinforced to get 280 GFLOPS of theoretical peak performance with the addition of 26 PEs to the original 140 PEs. On a CFD simulation of jet engine compressor, we attained active performance speed of 111 GFLOPS using 160 PEs.
NAL Numerical Wind Tunnel (NWT) is a distributed memory parallel computer developed through joint research and development of NAL and Fujitsu. It is based on the analysis of CFD codes developed in NAL. The target performance is more than 100 times faster than VP400.In this paper, the parallel computation model employed in the development of the NWT is… (More)