Scatter-gather intelligent memory architecture for unstructured streaming data on multiprocessor systems

摘要

A scatter/gather technique optimizes unstructured streaming memory accesses, providing off-chip bandwidth efficiency by accessing only useful data at a fine granularity, and off-loading memory access overhead by supporting address calculation, data shuffling, and format conversion.

主权项

1. A processor comprising:
a core including a computation processor and a scatter/gather engine coupled to the computation processor, the scatter/gather engine to generate sub-cache line sized non-sequential data accesses to a system memory based on a data access pattern to the system memory, and to communicate sub-cache line sized data with the system memory, the data access pattern comprising a program defined access pattern, wherein the scatter/gather engine includes an access pattern generator to generate the sub-cache line sized non-sequential data accesses to the system memory based on the program defined access pattern comprising a stride-based access pattern; a cache coupled to the core, data to be transferred between the cache and the system memory using full-cache line sized transfers; and a memory controller coupled between the cache and the system memory.