Abstract :
It is my pleasure to welcome you to the COOL Chips XV, the 15th IEEE Symposium on Low-Power and High-Speed Chips. This is the 15-th anniversary of COOL Chips Conference Series since 1998, which was held in Tokyo as a one-day event of invited talks only. Now COOL Chips is a three-day event fully sponsored by IEEE Computer Society, which covers not only the chip architecture design, but also software technologies at system software and application levels. I would like to acknowledge those who support COOL Chips in the past fourteen years.