ReGTime1 (Rent Giga
ops someTimes) is a software package for an envisioned \computing power market". ReGTime helps customers to search for providers who allow their workstation clusters to be rented. It manages the rental of disposable machines on provider's side and establishes the contract with the customer. It is responsible for granting access to rented systems and observes compliance with established contracts.The organization of such a computing power market is derived from trading mechanisms of existing electronic markets.