PRIONN

Abstract

For job allocation decision, current batch schedulers have access to and use only information on the number of nodes and runtime because it is readily available at submission time from user job scripts. User-provided runtimes are typically inaccurate because users overestimate or lack understanding of job resource requirements. Beyond the number of nodes and runtime, other system resources, including IO and network, are not available but play a key role in system performance. There is the need for automatic, general, and scalable tools that provide accurate resource usage information to schedulers so that, by becoming resource-aware, they can better manage system resources.