Abstract: Techniques for efficiently managing resources are described. In an example, a computer system may access a forecast for demand associated with utilizing a service during a time period, where the service is available from service sources grouped in clusters. The computer system may identify resources scheduled to facilitate the service. Based on a scheduled start time for utilizing a resource, the forecast, and an allocation of remaining resources to the clusters, the computer system may allocate the resource to a first cluster and may provide a notification about the allocation to an associated client device. At a subsequent time during the time period, the computer system may re-allocate the resource to a second cluster based on a current utilization of the resource, an update to the forecast, and the allocation of the remaining resources. A respective notification may be provided to the client device.