Publications

System-level support for composition of applications

Kocoloski, Brian; Lange, John; Abbasi, Hasan; Bernholdt, David E.; Jones, Terry R.; Dayal, Jai; Evans, Noah; Lang, Michael; Lofstead, Jay; Pedretti, Kevin P.; Bridges, Patrick G.

Current HPC system software lacks support for emerging application deployment scenarios that combine one or more simulations with in situ analytics, sometimes called multi-component or multi-enclave applications. This paper presents an initial design study, implementation, and evaluation of mechanisms supporting composite multi-enclave applications in the Hobbes exascale operating system. These mechanisms include virtualization techniques isolating application custom enclaves while using the vendor-supplied host operating system and high-performance inter-VM communication mechanisms. Our initial single-node performance evaluation of these mechanisms on multi-enclave science applications, both real and proxy, demonstrate the ability to support multi-enclave HPC job composition with minimal performance overhead.