1. A method for temporarily transforming a client-server network into a grid network, comprising: allowing each of a plurality of client devices to operate under a local operating system in a client-server mode; at a first predetermined time, configuring a server, with which the client devices are coupled through a network, to operate under a thin-client operating system, whereby the server becomes a master node on the network; for each client device: determining whether a boot image is available for deployment to the client device; after determining that a boot image is not available for the client device, generating a boot image for the client device; directing that the client device initiate a network boot in a thin-client mode, whereby the client device becomes a processing node for the server; transmitting a thin-client image and a grid application to the processing node, whereupon the client device boots the thin-client image; and launching the grid application on the processing node, whereby the processing node operates in a grid mode for use by the grid application, the grid application able to launch different grid applications on different processing nodes.