Scheduling of online compute-intensive synchronized jobs on high performance virtual clusters

This paper presents a high performance technique for virtualization-unaware scheduling of compute-intensive synchronized (i.e., tightly-coupled) jobs in virtualized high performance computing systems. Online tightly-coupled jobs are assigned/reassigned to clustered virtual machines based on synchronization costs. Virtual machines are in turn assigned/reassigned to clustered physical machines based on CPU load. Our analytical study shows that it is possible to minimize the performance and scalability degradation of high performance computing applications such as ExaScale and PetaScale systems and applications that are recommended to use virtualization technology to achieve higher degree of performability, namely higher utilization, energy efficiency, portability, flexibility and configurability.