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SOSP
2009
ACM

Helios: heterogeneous multiprocessing with satellite kernels

13 years 11 months ago
Helios: heterogeneous multiprocessing with satellite kernels
Helios is an operating system designed to simplify the task of writing, deploying, and tuning applications for heterogeneous platforms. Helios introduces satellite kernels, which export a single, uniform S abstractions across CPUs of disparate architectures and performance characteristics. Access to I/O services such as file systems are made transparent via remote message passing, which a standard microkernel message-passing abstraction to a satellite kernel infrastructure. Helios retargets applications to available ISAs by compiling from an intermediate language. To simplify deploying and tuning application performance, Helios exposes an affinity metric to developers. Affinity provides a hint to the operating system about whether a process would benefit from executing on the same platform as a service it depends upon. We developed satellite kernels for an XScale programmable I/O card and for cache-coherent NUMA architectures. We offloaded several applications and operating syste...
Edmund B. Nightingale, Orion Hodson, Ross McIlroy,
Added 17 Mar 2010
Updated 17 Mar 2010
Type Conference
Year 2009
Where SOSP
Authors Edmund B. Nightingale, Orion Hodson, Ross McIlroy, Chris Hawblitzel, Galen C. Hunt
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