a graphical user interface includes a graph with vectors and nodes for visualizing a computer grid , the nodes representing computers running grid managers and the vectors representing relations between pairs of grid managers , each of the relations defining a first grid manager to be superior to a second grid manager and a vector points from a node representing the first grid manager to a node representing the second grid manager . the gui also includes , for each node , an expandable structure showing computer grid applications running on a computer represented by the node , and an event handler configured to receive a request to view management services running on a computer and to generate a display showing the management services running on the computer .