PARALLEL COMPUTER SYSTEM, METHOD OF CONTROLLING A PARALLEL COMPUTER SYSTEM, AND A NON-TEMPORARY COMPUTER-READABLE MEDIUM THAT STORES A PROGRAM

摘要

A parallel computer system includes: direct links that forms a direct connection between a sending node and a receiving node, one-hop links that forms a connection between a sending node and a receiving node by way of a return node that is other than the sending node and the receiving node, and a communication control unit that, when transferring data from a sending node to a receiving node, selects the link that connects the sending node and the receiving node from among a link that uses only a direct link, a link that uses only a one-hop link, and a link that forms a connection combines and uses the direct link and the one-hop link.