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
Bandana
Magnetic resonance imaging apparatus for use with radiotherapy
Registry key federation systems and methods
Method and apparatus for performing real time anomaly detection
Economic filtering system for delivery of permission based, targeted, incentivized advertising
Method for determining the local position of at least one mobile radio communication device based on predetermined local positions of adjacent radio communication devices, associated radio com
Cable preparation tool
  Randomly Featured Patents
Prosthesis of the hip
Binary multibit multiplier
Electron gun for cathode-ray tube
High cooling air flow rate brake rotor
Latent mercaptans as stabilizers for halogen-containing polymer compositions
Method for modifying and resetting the bloodstream prolactin levels of a human subject
Mos buffer circuit
Film forming unit
Method and apparatus for controlling an ignition system
Toner and developers for developing static latent image