Title:
INFORMATION PROCESSING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2012/008008
Kind Code:
A1
Abstract:
Disclosed is an information processing system that uses snoopy caches (4A, 4B) for a plurality of nodes (1-1 to 1-n). The following directories are used to maintain the cache coherence of the snoopy caches (4A, 4B) for the plurality of nodes (1-1 to 1-n): a first directory (22); and a dedicated shared-state second directory (24), the format of which is different from that of the first directory (22). This configuration makes it possible to store detailed data on shared nodes without increasing the entry width of the first directory. This also makes it possible to issue snoop requests for addresses narrowed down by information obtained by searching the second directory.
Inventors:
HOSOKAWA Yuka (1-1 Kamikodanaka 4-chome, Nakahara-ku, Kawasaki-sh, Kanagawa 88, 〒2118588, JP)
細川由佳 (〒88 神奈川県川崎市中原区上小田中４丁目１番１号 富士通株式会社内 Kanagawa, 〒2118588, JP)
HATAIDA Makoto (1-1 Kamikodanaka 4-chome, Nakahara-ku, Kawasaki-sh, Kanagawa 88, 〒2118588, JP)
畑井田誠 (〒88 神奈川県川崎市中原区上小田中４丁目１番１号 富士通株式会社内 Kanagawa, 〒2118588, JP)
細川由佳 (〒88 神奈川県川崎市中原区上小田中４丁目１番１号 富士通株式会社内 Kanagawa, 〒2118588, JP)
HATAIDA Makoto (1-1 Kamikodanaka 4-chome, Nakahara-ku, Kawasaki-sh, Kanagawa 88, 〒2118588, JP)
畑井田誠 (〒88 神奈川県川崎市中原区上小田中４丁目１番１号 富士通株式会社内 Kanagawa, 〒2118588, JP)
Application Number:
JP2010/061785
Publication Date:
January 19, 2012
Filing Date:
July 12, 2010
Export Citation:
Assignee:
FUJITSU LIMITED (1-1 Kamikodanaka 4-chome, Nakahara-ku Kawasaki-sh, Kanagawa 88, 〒2118588, JP)
富士通株式会社 (〒88 神奈川県川崎市中原区上小田中４丁目１番１号 Kanagawa, 〒2118588, JP)
HOSOKAWA Yuka (1-1 Kamikodanaka 4-chome, Nakahara-ku, Kawasaki-sh, Kanagawa 88, 〒2118588, JP)
細川由佳 (〒88 神奈川県川崎市中原区上小田中４丁目１番１号 富士通株式会社内 Kanagawa, 〒2118588, JP)
HATAIDA Makoto (1-1 Kamikodanaka 4-chome, Nakahara-ku, Kawasaki-sh, Kanagawa 88, 〒2118588, JP)
富士通株式会社 (〒88 神奈川県川崎市中原区上小田中４丁目１番１号 Kanagawa, 〒2118588, JP)
HOSOKAWA Yuka (1-1 Kamikodanaka 4-chome, Nakahara-ku, Kawasaki-sh, Kanagawa 88, 〒2118588, JP)
細川由佳 (〒88 神奈川県川崎市中原区上小田中４丁目１番１号 富士通株式会社内 Kanagawa, 〒2118588, JP)
HATAIDA Makoto (1-1 Kamikodanaka 4-chome, Nakahara-ku, Kawasaki-sh, Kanagawa 88, 〒2118588, JP)
International Classes:
G06F12/08
Attorney, Agent or Firm:
HAYASHI Tsunenori et al. (Hayashi, Doi & Associates Toshou-Bldg. No.3, 3-9-5, Shin-yokohama, Kohoku-ku, Yokohama-sh, Kanagawa 33, 〒2220033, JP)
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Claims: