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Any thoughts on this HP research paper http://www.hpl.hp.com/techreports/2004/HPL-2004-209.html http://www.hpl.hp.com/techreports/2004/HPL-2004-209.html "Thre

by Hoff 14y ago

Any thoughts on this HP research paper http://www.hpl.hp.com/techreports/2004/HPL-2004-209.html http://www.hpl.hp.com/techreports/2004/HPL-2004-209.html "Threads Cannot be Implemented as a Library"? That paper states that library-based threading implementations that don't also involve the compiler can't guarantee correctness of the resulting threading.

qznc 14y ago
Not relevant here. The paper talks about correctness for parallel kernel-level threads. In contrast, lthreads are about concurrency. These user-level threads are about software architecture, because they are more elegant than an event-loop. Parallelism (exploiting multicore hardware for a speedup) is a secondary goal, but it is much easier to parallelize a user-level thread program compared to an event loop program.