BOLTZMANN MACHINE PROCESSOR USING SINGLE-BIT OPERATION

This paper describes a single-bit parallel processor specified to Bolt zmann Machine. The processor has SIMD (Single Instruction Multiple Dat a stream) type parallel architecture and every processing element (PE) has a single-bit ALU and a local memory storing connected weights bet ween neurons. Features of the processor are large scale parallel proce ssing using a number of the simple single-bit PEs and effective expans ion realized by multiple chips connected simple bus lines. Moreover, i t is enhanced that the processing speed can be independent of the numb er of the neurons. We designed the PE using 1.2 mum CMOS process stand ard cells and confirmed the high performance using CAD simulations.