摘要:
Non-inclusive cache systems and methods are provided. In one embodiment a non-inclusive cache system is provided comprising a non-inclusive cache and a cache agent that receives a request for access to the non-inclusive cache and denies the request for access to the non-inclusive cache if the non-inclusive cache system exceeds a predetermined level of activity.
摘要:
Non-inclusive cache systems and methods are provided. In one embodiment a non-inclusive cache system is provided comprising a non-inclusive cache and a cache agent that receives a request for access to the non-inclusive cache and denies the request for access to the non-inclusive cache if the non-inclusive cache system exceeds a predetermined level of activity.
摘要:
A system and method are disclosed for achieving cache coherency in a multiprocessor computer system having a plurality of sockets with processing devices and memory controllers and a plurality of memory blocks. In at least some embodiments, the system includes a plurality of node controllers capable of being respectively coupled to the respective sockets of the multiprocessor computer, a plurality of caching devices respectively coupled to the respective node controllers, and a fabric coupling the respective node controllers, by which cache line request signals can be communicated between the respective node controllers. Cache coherency is achieved notwithstanding the cache line request signals communicated between the respective node controllers due at least in part to communications between the node controllers and the respective caching devices to which the node controllers are coupled. In at least some embodiments, the caching devices track remote cache line ownership for processor and/or input/output hub caches.
摘要:
An embodiment of a multiprocessor computer system comprises main memory, a remote processor capable of accessing the main memory, a remote cache device operative to store accesses by said remote processor to said main memory, and a filter tag cache device associated with the main memory. The filter cache device is operative to store information relating to remote ownership of data in the main memory including ownership by the remote processor. The filter cache device is operative to selectively invalidate filter tag cache entries when space is required in the filter tag cache device for new cache entries. The remote cache device is responsive to events indicating that a cache entry has low value to the remote processor to send a hint to the filter tag cache device. The filter tag cache device is responsive to a hint in selecting a filter tag cache entry to invalidate.
摘要:
An embodiment of a multiprocessor computer system comprises main memory, a remote processor capable of accessing the main memory, a remote cache device operative to store accesses by said remote processor to said main memory, and a filter tag cache device associated with the main memory. The filter cache device is operative to store information relating to remote ownership of data in the main memory including ownership by the remote processor. The filter cache device is operative to selectively invalidate filter tag cache entries when space is required in the filter tag cache device for new cache entries. The remote cache device is responsive to events indicating that a cache entry has low value to the remote processor to send a hint to the filter tag cache device. The filter tag cache device is responsive to a hint in selecting a filter tag cache entry to invalidate.
摘要:
In one embodiment, there are described a sectored cache system and method of operation. A cache data block comprises separately updatable cache sectors. A common tag block contains metadata for the cache sectors of the data block and is writable as a whole. A pending allocation table (PAT) contains data representing pending writes to the tag block. When writing changes data to the tag block, the changed data is broadcast to the PAT to update data representing other pending writes to the tag block so that when the other pending writes are written to the tag block changed data from received broadcasts is included.
摘要:
In one embodiment, a controller for an associative memory having n ways contains circuitry for sending a request to search an indexed location in each of the n ways for a tag, wherein the tag and an index that is used to denote the indexed location form a memory address. The controller also contains circuitry, responsive to the request, for sending a set of n validity values, each validity value indicating, for a respective way, whether the indexed location is a valid location or a defective location. Additionally, the controller contains circuitry for receiving a hit signal that indicates whether a match to the tag was found at any of the indexed locations, wherein no hit is ever received for a defective location.
摘要:
In one embodiment, a controller for an associative memory having n ways contains circuitry for sending a request to search an indexed location in each of the n ways for a tag, wherein the tag and an index that is used to denote the indexed location form a memory address. The controller also contains circuitry, responsive to the request, for sending a set of n validity values, each validity value indicating, for a respective way, whether the indexed location is a valid location or a defective location. Additionally, the controller contains circuitry for receiving a hit signal that indicates whether a match to the tag was found at any of the indexed locations, wherein no hit is ever received for a defective location.
摘要:
The present disclosure relates to compositions and methods for cancer diagnosis, research and therapy, including but not limited to, cancer markers. In particular, the present disclosure relates to gene fusions as diagnostic markers and clinical targets for breast cancer.
摘要:
A molding apparatus is configured with article molding regions that receive a direct flow of a molding material feed such that external flow channels are not needed. The article molding regions are formed into front sides of opposed “A” and “B” surface mold tools that, when moved into a mating relationship with one another, form closed molding cavities within which molded articles are generated from molding material feed. The article molding regions each generally have a body bounded by a perimeter that establishes an outer edge for an article molded in the one of the closed molding cavities. With at least the “A” surface mold tool, a port is coupled with the body of each article molding region to establish a direct pathway is through which the molding material feed flows to enter the article molding regions, and thus the closed molding cavity, without having to flow along the tool front sides outside of the article molding regions. A distribution channel extends to each port to deliver the molding material feed and a moveable blocking pin is provided for each port to alternately prevent the molding material feed from flowing through the respective port to reach the closed molding cavity and allow the molding material to flow through the respective port to reach the closed molding cavity.