1-2hit |
Jinjung KIM Yunho CHOI Chongho LEE Duckjin CHUNG
In this paper, a hardware-oriented Genetic Algorithm (GA) was proposed in order to save the hardware resources and to reduce the execution time of GAP. Based on steady-state model among continuous generation model, the proposed GA used modified tournament selection, as well as special survival condition, with replaced whenever the offspring's fitness is better than worse-fit parent's. The proposed algorithm shows more than 30% in convergence speed over the conventional algorithm. Finally, by employing the efficient pipeline parallelization and handshaking protocol in proposed GAP, above 30% of the computation speed-up can be achieved over survival-based GA which runs one million crossovers per second (1 MHz), when device speed and size of application are taken into account on prototype. It would be used for high speed processing such of central processor of evolvable hardware, robot control and many optimization problems.
Yunho CHOI Myungho KIM Hyunsoon JANG Taejin KIM Seung-hoon LEE Ho-cheol LEE,Churoo PARK Siyeol LEE Cheol-soo KIM Sooin CHO Ejaz HAQ Joel KARP Daeje CHIN
In order to keep up with the growing need for memory bandwidth at low cost, a new synchronous DRAM (SDRAM) architecture is proposed. The SDRAM has programmable latency, burst length, and burst type for wide variety of applications. The experimental 16M SDRAM (2M8) achieves a 125-Mbyte/s data rate using 0.5-µm twin well CMOS technology.