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Thread to strand binding of parallel network applications in massive multi-threaded systems

9 years 6 months ago
Thread to strand binding of parallel network applications in massive multi-threaded systems
In processors with several levels of hardware resource sharing, like CMPs in which each core is an SMT, the scheduling process becomes more complex than in processors with a single level of resource sharing, such as pure-SMT or pure-CMP processors. Once the operating system selects the set of applications to simultaneously schedule on the processor (workload), each application/thread must be assigned to one of the hardware contexts (strands). We call this last scheduling step the Thread to Strand Binding or TSB. In this paper, we show that the TSB impact on the performance of processors with several levels of shared resources is high. We measure a variation of up to 59% between different TSBs of real multithreaded network applications running on the UltraSPARC T2 processor which has three levels of resource sharing. In our view, this problem is going to be more acute in future multithreaded architectures comprising more cores, more contexts per core, and more levels of resource sharin...
Petar Radojkovic, Vladimir Cakarevic, Javier Verd&
Added 28 May 2010
Updated 28 May 2010
Type Conference
Year 2010
Where PPOPP
Authors Petar Radojkovic, Vladimir Cakarevic, Javier Verdú, Alex Pajuelo, Francisco J. Cazorla, Mario Nemirovsky, Mateo Valero
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