Communication control device, information processing apparatus, parallel computer system, and control method for parallel computer system

摘要

An arithmetic processing device (601) executes a program, and gives first sequence information to a first start time when a first process included in the program starts a first interprocess communication. Then, the first start time and the first sequence information are written in a main storage device (602) . When second sequence information given to a second start time when a second process starts a second interprocess communication is newer than the first sequence information, an operation unit (411) in a communication control device (401) does not carry out an operation using the first start time. On the other hand, when the second sequence information corresponds to the first sequence information, the operation unit carries out an operation using the first start time and the second start time and outputs the operation result.