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Title:
THREAD ENDING METHOD AND DEVICE AND PARALLEL PROCESSOR SYSTEM
Document Type and Number:
Japanese Patent JP3630118
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To reduce term instructions for ending a thread in a parallel processor system dividing a single program into a plurality of the threads and parallelly executing them in a plurality of processors.
SOLUTION: Each processor is provided with a register 29 for storing the start address of a forked slave thread and a comparator circuit 30 detecting that the value of its program counter 21 matches the start address stored in the register 29. Each processor transmits a thread end notification 7d to a thread management part when the value of its program counter 21 matches the start address of the forked slave thread and ends the execution of a master thread when a thread end permission 7e is returned from the thread management part.


Inventors:
Taku Osawa
Satoru Matsushita
Application Number:
JP2001212249A
Publication Date:
March 16, 2005
Filing Date:
July 12, 2001
Export Citation:
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Assignee:
NEC
International Classes:
G06F15/16; G06F9/46; G06F9/48; G06F9/50; G06F9/52; G06F15/177; (IPC1-7): G06F9/46; G06F9/50
Domestic Patent References:
JP10027108A
JP10078880A
Other References:
鳥居淳、外5名,オンチップ制御並列プロセッサMUSCATの提案,情報処理学会論文誌,日本,社団法人情報処理学会,1998年 6月,第39巻、第6号,第1622頁乃至第1631頁
小林良太郎、外3名,非数値計算プログラムのスレッド間命令レベル並列を利用するプロセッサ・アーキテクチャSKY,1998年並列処理シンポジウム,日本,社団法人情報処理学会,1998年 6月 3日,第98巻、第7号,第87頁乃至第94頁
Sohi, G. S., et al.,Multiscalar Processors,Computer Architecture, 1995. Proc. 22nd Annual International Symposium on,IEEE,1995年 6月24日,pp. 414 - 425
大澤拓、外7名,MUSCATにおける混在スレッド実行方式の検討,情報処理学会研究報告,日本,社団法人情報処理学会,1999年 8月 4日,第99巻、第67号,第169頁乃至第174頁
Attorney, Agent or Firm:
Sakai Hiromi