Publish-subscribe for high-performance computing

High-performance computing could significantly benefit from publish-subscribe communication, but current systems don't deliver the kind of performance required by applications in that domain. In response to these needs, the authors developed Echo, a high-performance event-delivery middleware designed to scale to the data rates of grid environments. Echo delivers advanced functionality, including event filtering at near network speeds. This article provides an overview of Echo, the infrastructure upon which it is built and the techniques used to implement it.