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Approximation Algorithms for Modern Multi-Processor Scheduling Problems

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The effects of practice schedule and critical thinking prompts on learning and transfer of a complex judgment task.

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EDF-schedulability of synchronous periodic task systems is coNP-hard

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In the synchronous periodic task model, a set \tau_1,...,\tau_n of tasks is given, each releasing jobs of running time c_i with relative deadline d_i, at each integer multiple of the period p_i. It is a classical result that Earliest Deadline First (EDF) i ...

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On the computational complexity of periodic scheduling

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In periodic scheduling jobs arrive regularly and have to be executed on one or several machines or processors. An enormous amount of literature has been published on this topic, e.g. the founding work of Liu & Layland [LL73] is among the top cited computer ...

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Scheduling periodic tasks in a hard real-time environment

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We give a rigorous account on the complexity landscape of an important real-time scheduling problem that occurs in the design of software-based aircraft control. The goal is to distribute tasks

\tau_i=(c_i,p_i)

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