Browsing LERO - Project partner authors by Author "IBM"

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Compiler support for lightweight context switching

Dolan, Stephen; Muralidharan, Servesh; Gregg, David (Association for Computing Machinery, 2013)

We propose a new language-neutral primitive for the LLVM compiler, which provides efficient context switching and message passing between lightweight threads of control. The primitive, called SWAPSTACK, can be used by any ...
Fast asymmetric thread synchronization

Cleary, Jimmy; Callanan, Owen; Purcell, Mark; Gregg, David (Association for Computing Machinery, 2013)

For most multi-threaded applications, data structures must be shared between threads. Ensuring thread safety on these data structures incurs overhead in the form of locking and other synchronization mechanisms. Where data ...
Heterogeneous multiconstraint application partitioner (HMAP)

Muralidharan, Servesh; Vasudevan, Aravind; Malik, Avinash; Gregg, David (IEEE Computer Society, 2013)

In this article we propose a novel framework – Heterogeneous Multiconstraint Application Partitioner (HMAP) for exploiting parallelism on heterogeneous High performance computing (HPC) architectures. Given a heterogeneous ...
Real-time sensor signal capture from a harsh environment

Purcell, Mark; Vasudevan, Aravind; Gregg, David (IEEE Computer Society, 2012)

Understanding the baseline underwater acoustic signature of an offshore location is a necessary, early step in formulating an environmental impact assessment of wave energy conversion devices. But in order to even begin ...

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