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

摘要

An arithmetic processing device 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. 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 operational circuit in a communication control device 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 operational circuit carries out an operation using the first start time and the second start time and outputs the operation result.

主权项

1. A communication control device connected to an arithmetic processing device and a main storage device, the communication control device comprising:
an operational circuit configured not to carry out an operation using a first start time when a first process among a plurality of processes included in a program executed by the arithmetic processing device starts a first interprocess communication, first sequence information being given to the first start time and written in the main storage device by the arithmetic processing device, when second sequence information given to a second start time when a second process among the plurality of processes starts a second interprocess communication is newer than the first sequence information, and configured to carry out an operation using the first start time and the second start time and to output an operation result when the second sequence information corresponds to the first sequence information.