GRID - Host Group - Available Memory

The Host group - Available Memory graph shows the total physical memory (red-line), physical memory available (in blue), and available swap space. Average, minimum, and maximums are reported for each data point. For a static host group, one would normally expect total memory to be constant. The periodic changes in memory and swap in the following chart indicate that host group membership is changing with time, or that machines in the host group are stopping and starting. This chart is showing idle machines since memory available to applications is close to the total available memory.