Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Access authorization table for multi-processor caches










Image Number 2 for United States Patent #5230070.

A multi-processor (MP) system having shared storage is provided with locking of exclusivity status and read only status in multi-processor caches. The multi-processor system includes a plurality of processors, a shared main storage and a storage control element (SCE). The storage control element includes a global access authorization table (GAAT). Locking of exclusivity status in multi-processor caches is accomplished by providing at each processor a local access authorization table (AAT) containing access status for recently used data blocks wherein the size of a data block is a multiple of cache line size. The access status of a block in the local access authorization table is checked when the block is to be accessed by a processor. Only if the access status for a block is not found in the local access authorization table is authorization to access the block requested from the storage control element.








 
 
  Recently Added Patents
Sponge
Vertical gate LDMOS device
Method and system for processing dictated information
White polyester film and surface light source therewith
Reduction of HMF ethers with metal catalyst
Nanocatalysts structure, process for the preparation and use thereof
Content output control device and content output control method
  Randomly Featured Patents
Process for preparation of beta-cyanoalkylsilanes
Cooling equipment
Apparatus, and associated method, for selectably operating radio device in alternate operating mode
Apparatus for externally changing the direction of air flowing through electronic equipment
Multilayer ceramic package with low-variance embedded resistors
Organic electro-luminescent device, manufacturing method for the same, and electronic equipment
Polishing pad and fabricating method thereof
Canal hearing device with transparent mode
Device for effecting an impression throw-on and throw-off of a cylinder
Optimization of calendar, itinerary, route plan, and PIM efficiencies according to assimilated wireless service availability conditions