A Grid Resource Broker Supporting Advance Reservations and Benchmark-based Resource Selection

Abstract. This contribution presents algorithms, methods, and soft-ware for a Grid resource manager, responsible for resource brokering and scheduling in early production Grids. The broker selects computing resources based on actual job requirements and a number of criteria iden-tifying the available resources, with the aim to minimize the total time to delivery for the individual application. The total time to delivery includes the time for program execution, batch queue waiting, input/output data transfer, executable staging, etc. Main features include support for mak-ing advance reservations, to make resource selections based on computer benchmark results and network performance predictions, and to enable a basic adaptation facility