Electronic computer system and virtual machine placement method

摘要

A computer system includes plural servers in which virtual machines are arranged; plural power supply apparatuses that supply electric power to the servers; and a control apparatus that controls arrangement of the virtual machines in the servers. The control apparatus solves an integer programming problem whose objective function is total power consumption by the servers and by the power supply apparatuses, the total power consumption being described as a function of the arrangement of the virtual machines; and arranges the virtual machines based on a solution of the integer programming problem.