Pre-Grant Publication Number: 20080104325
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Prior Art Detail
Summary / Description
| Summary / Description | ... provide history-based movement of shared-data in coherent cache memories. A plurality of entries are stored in a consume after produce (CAP) table ... Each of the entries is associated with a plurality of storage elements...caches and includes information of prior usage...Upon a miss by a processing node to a cache included therein, any storage elements are transferred to the cache from ..memory...another cache. An entry is created ...associated with the storage elements that caused the miss. A push prefetching engine may be used to create the entry. |
Basic Information
| Type of Prior Art | Issued Patents - US |
| Country | United States of America |
| Patent/Application # | 6711651 |
| Kind Code | United States (US) - United STATES Patent - A |
| Patentee Name | International Business Machines Corporation |
| Relevant Pages, Columns, or Lines | col. 1 row 60-67; col. 2 row 4 |
| URL | |
| Filing Date | September 5, 2000 |
| Additional Information | |
Notes / To Do
| Notes | Prior art entered on behalf of John-David Wellman. |
Excerpt
Excerpt The invention employs mechanisms for causing the pushing of data from one node/processor to other nodes/processors in an MP computer system based on memory sharing patterns. The concept is to monitor and keep a history of which processors in the system consume a particular datum or data (hereinafter "data") that is produced by another node/processor, and push the produced data (e.g., cache line(s)) to the consuming nodes/processors. ...
The invention simply identifies nodes/processors that are likely to use newly produced data, and attempts to timely move copies of the data closer to the consuming nodes/processors to reduce possible cache misses that must be intervened by other nodes/processors in the system. The invention uses a simple history gathering technique, and does not require a complex prediction mechanism to predict likely messages that must follow in series. The invention employs a data-centric approach that actively and aggressively moves data closer to the consuming processor(s), and incurs only a minimal learning overhead, |
Relevance
Claims
1
Relevance
Disclosed is a method, 'a monitor agent', that provides (pushes) data to a consumer before the data is requested by the consumer.
Disclosed is a method, 'a monitor agent', that provides (pushes) data to a consumer before the data is requested by the consumer.
Claim Chart
All
13
Relevance
Disclosed is a prefetching controller, 'a monitor agent', that provides (pushes) data to a consumer before the data is requested.
Disclosed is a prefetching controller, 'a monitor agent', that provides (pushes) data to a consumer before the data is requested.
Claim Chart
All
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