| 摘要 |
PURPOSE:To avoid communication dead lock by interrupting the transmission processing of a message packet to be just transmitted, starting the transmission of the message packet having high priority, interrupting the reception processing of the message packet to be just received and starting the reception of the new message packet. CONSTITUTION:When necessity is generated to output the message packet, whose priority is higher than the message packet to be just transmitted presently, the message routing control part of a PE interrupts the transmission processing concerning the message packet, which is just transmitted presently, and starts the transmission of the message packet to have the high priority. In the reception, when the output of the new message packet is detected while the message is received in an input port, the reception processing concerning the message packet, which is just received, is interrupted and the reception of the new message is started. Thus, the communication dead lock can be avoided. |
