Disclosed is a software architecture supporting a large-capacity collective memory layer in a multi-node system by using a remote direct memory access technique and a software virtualization technique and a computing system performing computing processing by using the architecture. An object-mountable supporting box is bridged between left and right frame members of a body frame. A first pocket member 24 is formed on the front support member 14 for supporting a front cover of the bible 12 therein, and a second pocket member 32 is formed on the back support member 16 for supporting a back cover of the bible therein. A muscular volume calculating device which computes muscular volume from measured bioelectricity impedance is also provided.