A Stream Based Memory Access Control System of an On-Chip Clustered Processor for Multi-task Application

In order to solve the low efficiency of the memory access system in a clustered stream processor while doing multi-task processing, a new stream memory access system is proposed. Considering the diversity and independency between each cluster under multi-task condition, a new stream memory access mechanism is designed, including system architecture, stream control, stream schedule, and stream information configuration. Result shows that after modification, the processor can work in both parallel and multi-task mode, remain almost the same parallel performance, and achieve an average improvement of 20% in multi-task mode.