Cray Advance Cluster Engine EMS ( http://www.cray.com/products/computing/cs-series?tab=cs_series http://www.cray.com/products/computing/cs-series?tab=cs_seri...

Cray Advance Cluster Engine EMS ( http://www.cray.com/products/computing/cs-series?tab=cs_series http://www.cray.com/products/computing/cs-series?tab=cs_seri... ). Formerly Appro Cluster Engine. Complete control and monitoring of cluster with either a CLI or GUI. Scalable monitoring with negligible impact on running workloads, including global synchronization of metric collection times, to minimize jitter. Ganglia front-end, but without the overhead of gmond/gmetric running on nodes. Validated as scaling well on a 8,000 node cluster. Full disclosure: I designed and implemented the monitoring system.