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Hi Stephen, On Fri, 18 Feb 2005, Burke, S (Stephen) wrote: > The broker doesn't really support anything - or else it supports > everything! The values in the information system are exposed to the > user, who gets to choose what to put in the Rank and Requirements. The > default Rank is the EstimatedResponseTime, which in theory should mean > that jobs go to empty sites first. However, as people have mentioned the > new information providers have a poor calculation of the ERT which will > mean that the job distribution will also be poor unless people rank on > something else. As someone (maybe you?) has pointed out earlier, if the ERT is to be useful for ranking sites then it must be calculated in the same way for each site. That being the case, would it not be more sensible for the algorithm to be defined by the RB or the UI? Then RB owners or even individual users could then each use their favourite definition of ERT based on (supposedly) well defined quantities like number of free CPUs, rather than arguing about which definition everyone should be "forced" to use. Ben -- Dr Ben Waugh Tel. +44 (0)20 7679 3783 Dept of Physics and Astronomy Internal: 33783 University College London London WC1E 6BT