This paper introduces the mig framework: an Open MPI extension to transparently support the migration of application processes, over different nodes of a distributed High-Performance Computing (HPC) system. The framework provides mechanism on top of which suitable resource managers can implement policies to react to hardware faults, address performance variability, improve resource utilization, perform a fine-grained load balancing and power thermal management. Compared to other state-of-the-art approaches, the mig framework does not require changes in the application code. Moreover, it is highly maintainable, since it is mainly a self-contained solution that has required a very few changes in other already existing Open MPI frameworks. Experimental results have shown that the proposed extension does not introduce significant overhead in the application execution, while the penalty due to performing a migration can be properly taken into account by a resource manager.

The MIG Framework: Enabling Transparent Process Migration in Open MPI

REGHENZANI, FEDERICO;MASSARI, GIUSEPPE;LIBUTTI, SIMONE;FORNACIARI, WILLIAM
2016-01-01

Abstract

This paper introduces the mig framework: an Open MPI extension to transparently support the migration of application processes, over different nodes of a distributed High-Performance Computing (HPC) system. The framework provides mechanism on top of which suitable resource managers can implement policies to react to hardware faults, address performance variability, improve resource utilization, perform a fine-grained load balancing and power thermal management. Compared to other state-of-the-art approaches, the mig framework does not require changes in the application code. Moreover, it is highly maintainable, since it is mainly a self-contained solution that has required a very few changes in other already existing Open MPI frameworks. Experimental results have shown that the proposed extension does not introduce significant overhead in the application execution, while the penalty due to performing a migration can be properly taken into account by a resource manager.
EuroMPI 2016 Proceedings of the 23rd European MPI Users' Group Meeting
978-1-4503-4234-6
Process Migration; Scheduling; Message Passing; Distributed Systems; Open MPI; MPI; HPC; Runtime;
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1003434
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