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
Tab visibility
Systems and methods for electronic verification of vehicle insurance coverage
Frothable aqueous composition for use in a carpet backing composition
Storage apparatus and method including page discard processing for primary and secondary volumes configured as a copy pair
Method of adenoviral vector synthesis
Fusing apparatus and image forming apparatus provided with the same, and heating apparatus
Tool box
  Randomly Featured Patents
Inspection system with in-lens, off-axis illuminator
Certain salicylanilides
Method for announcing a calling party from a communication device
Sharps disposal system
Formant converting apparatus modifying singing voice to emulate model voice
Radial flow reactor with double perforated scallops
Multi-component electric stunning umbrella
Cylinder head gasket
Ice-melting composition having anti-corrosion properties
Vacuum cleaner bag