The information processing apparatus is provided with a plurality of spin units for storing spin states and searching for a predetermined state by updating a spin state of a spin unit based on spin states of other spin units. The information processing apparatus includes: a first semiconductor integrated circuit device in which a plurality of first spin units are formed; a second semiconductor integrated circuit device in which a second spin unit is formed; an inter-chip wire connecting the first semiconductor integrated circuit device and the second semiconductor integrated circuit device; and a transmitter connection unit connected to the inter-chip wire and simultaneously shared by the plurality of first spin units. The transmitter connection unit transmits a spin state of a spin unit of which the spin state is changed among the plurality of first spin units, to the second semiconductor integrated circuit device through the inter-chip wire.