A method and system are provided for enabling replacement of a failed processor without requiring redundancy of hardware. A multipurpose manual mixer with its entire structure in one piece made up of a long and uneven handle at one end and flat rectangular pieces with rounded corners, propellers like big and small, holed and un-holed attached vertically to a tubular body to the other end in continuous rows, parallel and separated from each other at equal distance. The operation of the oscillating circuit is controlled in response to an operation control signal, which is generated by a watching result, and an oscillation control signal whose voltage level is changed in response to the mode of the MC unit. The fiber can be longitudinally asymmetric wherein the core includes a first portion having a propagation velocity for the acoustic wave that is substantially the same throughout interposed between longitudinally spaced portions each having a propagation velocity different than that of said first portion. The physical resources may include processors and the hypervisor may allocate a fractional portion of at least one processor to a partition. A flexible element is attached to the first part and the second part, which flexible element allows independent movement of the first part and second part when the clamp is not assembled.