A method, system, and program for automatically building a locally managed virtual node grouping to handle a grid job requiring a degree of resource parallelism for execution within a grid environment are provided. The grid environment includes multiple resource nodes which are identified by physical location as physically disparate groups each managed by a grid manager. The grid managers include a grid virtual node grouping subsystem that enables a particular grid manager receiving a grid job that requires a particular degree of resource parallelism for execution to build a virtual node grouping of resources from across the grid environment and locally manage the resources included in the virtual node grouping. In particular, the particular grid manager accesses, from the other grid managers, a current availability and workload of each of the physically disparate resource nodes. The particular grid manager selects a selection of resource nodes to build into a virtual node grouping for executing the grid job. The virtual node grouping is built by the other grid managers enabling the particular grid manager to acquire temporary management control over the selection of resource nodes for a duration of the execution of the grid job within the virtual node grouping.