Information processing apparatus

An information processing apparatus comprising:

• a plurality of electronic apparatus stacked over a plurality of hierarchies in the information processing apparatus;
• a heat exchanger that cools refrigerant liquid for cooling the plurality of electronic apparatus;
• a first distributor that distributes the refrigerant liquid from the heat exchanger to the plurality of hierarchies;
• a plurality of second distributor that stores the refrigerant liquid temporarily;
• and
• a plurality of pipes that branched from the distribution pipes to the plurality of the electronic apparatus,
• wherein the number of the second distributor increases toward a hierarchy on downstream side,
• the pipes of the last hierarchy are coupled to the electronic apparatus, and where the total number of branches to which the first distributor distributes the refrigerant liquid is represented by R and the number of hierarchies is represented by T,
• the number BN of branches that are branched from the second distributor of the Nth hierarchy is defined by the following expression:
• BN≈R̂(1/T) . . . ((1/T)th power of R)
• where BN, R and T are integers equal to or greater than 2.