Multiprocessor Systems

Van Hoang Nguyen

Mail: [email protected]

Department of Computer Science – FITA – HUA

Advanced Operating System Course ---------------------------------- Fall 2012

Dept. of Computer Science – FITA – HUA

Advanced Operating System – Fall 2012

Van Hoang Nguyen

Computational biology

› Physicists – Computational physic

› Simulation


Van Hoang Nguyen

› c ≈ 20 cm/ns in wire or fiber

› 10 GHz then system < 2cm

› heat dissipation


Van Hoang Nguyen


Van Hoang Nguyen http://i.top500.org/system/177232


Van Hoang Nguyen

http://i.top500.org/system/177556


Van Hoang Nguyen


Van Hoang Nguyen


Van Hoang Nguyen

Programmer’s view: memory is shared, but can have much message-passing under the covers


Van Hoang Nguyen


Van Hoang Nguyen


Van Hoang Nguyen

Value


Van Hoang Nguyen


Van Hoang Nguyen


Van Hoang Nguyen


Van Hoang Nguyen


Van Hoang Nguyen


Van Hoang Nguyen

Have much message-passing under this cover


Van Hoang Nguyen

Directory

Directory


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› hit rate up from 99% to 99.5%


Van Hoang Nguyen

› Shared Memory


Van Hoang Nguyen


Van Hoang Nguyen

Technology

Multiprocessor Systems