ARITHMETIC PROCESSING DEVICE, INFORMATION PROCESSING DEVICE, AND A METHOD OF CONTROLLING THE INFORMATION PROCESSING DEVICE

摘要

An arithmetic processing device promotes transmission efficiency between a processor and a memory. The arithmetic processing device has an arithmetic processing unit which issues an instruction accompanying with data which is sent to the memory, a judgment unit which judges whether or not a redundancy degree of the data which is accompanied with the instruction is more than a predetermined value, a compression unit which judges whether or not compress the data based on an waiting time and a compression time when the redundancy degree of the data is more than the predetermined value, and compress the data when judging that performs the compression, and an instruction arbitration unit which transfers the instruction accompanying with the compressed data to the memory when the compression unit performs the compression and transfers the instruction accompanying with the non-compressed data to the memory when the compression unit does not perform the compression.

主权项

1. An arithmetic processing device comprising:
an arithmetic processing unit configured to issue an instruction accompanying with data which is sent to a memory; a judgment unit configured to judge whether or not a redundancy degree of the data which is accompanied with the instruction is more than a predetermined value; a compression unit configured to judge whether or not compress the data based on an waiting time until a transfer start of the instruction to the memory and a compression time to take the compression of the data when the redundancy degree of the data is more than the predetermined value, and compress the data when judging that performs the compression; and an instruction arbitration unit configured to transfer the instruction accompanying with the compressed data from the arithmetic processing unit to the memory when the compression unit performs the compression and transfer the instruction accompanying with the non-compressed data from the arithmetic processing unit to the memory when the compression unit does not perform the compression.