Message communications system in a parallel computer

摘要

A method for message communications between multiple processor elements in a parallel computer according to this invention comprises the steps of: directly writing a message body containing message information of a message from a transmitting processor element into a shared memory area in a memory of a receiving processor element by a remote writing unit; transmitting a header containing identifier information and pointer information for the message from the transmitting processor element to a message receiving unit of the receiving processor element; and writing the header into a local memory area in the memory in the order of arrival of the headers by the message receiving unit of the receiving processor element.