A distributed processing system includes at least two processing elements (100 and 200) which are mutually connected, and each processing element having at least a processing section, a memory section, and a communication section. A first processing section (102) stores data in a predetermined area of a first memory section (101), or reads data stored in a predetermined area of the first memory section (101). A first communication section (103) of one processing element (100) transmits data read from the first memory section (101) to the other processing element (200), or stores data received from the other processing element (200) to the first memory section (101).