Generating Fast Indulgent Algorithms

Abstract : Synchronous distributed algorithms are easier to design and prove correct than algorithms that tolerate asynchrony. Yet, in the real world, networks experience asynchrony and other timing anomalies. In this paper, we address the question of how to efficiently transform an algorithm that relies on synchronization into an algorithm that tolerates asynchronous executions. We introduce a transformation technique from synchronous algorithms to indulgent algorithms [1], which induces only a constant overhead in terms of time complexity in well-behaved executions. Our technique is based on a new abstraction we call an asynchrony detector, which the participating processes implement collectively. The resulting transformation works for a large class of colorless tasks, including consensus and set agreement. Interestingly, we also show that our technique is relevant for colored tasks, by applying it to the renaming problem, to obtain the first indulgent renaming algorithm.
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Communication dans un congrès
Marcos Kawazoe Aguilera and Haifeng Yu and Nitin H. Vaidya and Vikram Srinivasan and Romit Roy Choudhury. ICDCN, 2011, Unknown, Springer, 6522, pp.41-52, 2011, Lecture Notes in Computer Science
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Dan Alistarh, Seth Gilbert, Rachid Guerraoui, Corentin Travers. Generating Fast Indulgent Algorithms. Marcos Kawazoe Aguilera and Haifeng Yu and Nitin H. Vaidya and Vikram Srinivasan and Romit Roy Choudhury. ICDCN, 2011, Unknown, Springer, 6522, pp.41-52, 2011, Lecture Notes in Computer Science. 〈hal-00992779〉

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