Location-aware cache-to-cache transfers

A system of location-aware cache intervention in a computer system, comprising:

• a plurality of cache clusters, comprising a first cache cluster and at least one other cache cluster;
• wherein each of the plurality of cache clusters comprises at least one cache, the first cache cluster comprises a first cache;
• and
• wherein the first cache maintains intervention information for at least one memory address, the intervention information indicating for which of the at least one other cache cluster the first cache has intervention responsibility.

A system of location-aware cache intervention in a computer system, comprising:

• a plurality of cache clusters, comprising a first cache cluster and at least one other cache cluster;
• wherein each of the plurality of cache clusters comprises at least one cache, the first cache cluster comprises a first cache;
• and
• wherein the first cache maintains location information for at least one memory address, the location information for a memory address in the at least one memory address indicating in which of the at least one other cache cluster data of the memory address is one of cached and likely to be cached.

A system for location-aware cache intervention in a computer system, comprising:

• a plurality of caches, comprising a first cache, a second cache and at least one other cache;
• wherein if the first cache receives a data request from the second cache, the first cache supplies requested data if the first cache has the requested data;
• and
• wherein if a third cache in the at least one other cache receives the data request from the second cache, the third cache cannot supply the requested data before the third cache is notified that the first cache cannot supply the requested data.

A method of location-aware cache intervention in a computer system, comprising the steps of:

• a first cache receiving a data request from a second cache;
• the first cache one of determining and predicting whether the first cache has the lowest cache intervention cost of any cache that can source requested data to the second cache;
• and
• the first cache supplying the requested data to the second cache via a cache intervention, if the first cache one of determines and predicts that the first cache has the lowest cache intervention cost of any cache that can source the requested data to the second cache.

A machine-readable medium having instructions stored thereon for execution by a processor to perform a method of location-aware cache intervention in a computer system, the method comprising the steps of:

• a first cache receiving a data request from a second cache;
• the first cache one of determining and predicting whether the first cache has the lowest cache intervention cost of any cache that can source requested data to the second cache;
• and
• the first cache supplying the requested data to the second cache via a cache intervention, if the first cache one of determines and predicts that the first cache has the lowest cache intervention cost of any cache that can source the requested data to the second cache.

A system of location-aware cache intervention in a computer system, comprising:

• a plurality of caches, comprising a first cache and at least one other cache;
• wherein the first cache maintains information for at least one memory address, and the first cache uses the information to one of determine and predict if the first cache can source data of a memory address in the at least one memory address to a second cache in the at least one other cache;
• and
• wherein the first cache can source the data of the memory address to the second cache if the first cache has the lowest cache intervention cost to source the data of the memory address to the second cache of any cache in the plurality of caches that can source the data of the memory address to the second cache.