Patent ID: 6970911

Claim:
A distributed memory type parallel computer, having plural computing nodes wherein each computing node comprises: a CPU (central processing unit); a PMU (primary memory unit); and a RCU (remote control unit) wherein said CPU, PMU and RCU are connected together and connected to a network, wherein data are transferred from first a computing node to a second computing nodes, and wherein: a command expressing an end of transfer (EOT) of said data is added to said data that are transferred from said first computing node to said second computing node; and wherein said second computing node recognizes said EOT and, in response thereto, stores an EOT fixed value in a predetermined target address of said PMU of said second computing node, and wherein: said CPU of said second computing node periodically accesses said target address and recognizes an end of data transfer when the value stored at said target address is said EOT fixed value.