Lock-Free and Practical Deques using Single-Word Compare-And-Swap

We present an efficient and practical lock-free implementation of a concurrent deque that is disjoint-parallel accessible and uses atomic primitives which are available in modern computer systems. Previously known lock-free algorithms of deques are either based on non-available atomic synchronization primitives, only implement a subset of the functionality, or are not designed for disjoint accesses. Our algorithm is based on a doubly linked list, and only requires single-word compare-and-swap atomic primitives, even for dynamic memory sizes. We have performed an empirical study using full implementations of the most efficient algorithms of lock-free deques known. For systems with low concurrency, the algorithm by Michael shows the best performance. However, as our algorithm is designed for disjoint accesses, it performs significantly better on systems with high concurrency and non-uniform memory architecture

Tutorial: Verification and Validation for Magnetic Fusion

99ER54512. Reproduction, translation, publication, use and disposal, in whole or in part, by or for the United States government is permitted. Submitted for publication to Physics of Plasmas

My Old Kentucky Home Good-night

https://digitalcommons.library.umaine.edu/mmb-ps/2772/thumbnail.jp

Fort! Da!: Thinking Death in Freud and Faust

Senior Project submitted to The Division of Languages and Literature of Bard College

Economic dynamics with financial fragility and mean-field interaction: a model

Following the statistical mechanics methodology, firstly introduced in macroeconomics by Aoki [1996,2002], we provide some insights to the well known works of Greenwald and Stiglitz [1990, 1993]. Specifically, we reach analytically a closed form solution of their models overcoming the aggregation problem. The key idea is to represent the economy as an evolving complex system, composed by heterogeneous interacting agents, that can partitioned into a space of macroscopic states. This meso level of aggregation permits to adopt mean field interaction modeling and master equation techniques.Comment: APFA6 proceeding

Tax Subchapter S Becomes Clearer

Since the addition of Subchapter S to the 1954 Internal Revenue Code in 1958, many articles have been written on the interpretation and application of the provisions of this Chapter to various factual situations. At the time of their publication, the final Regulations and pertinent Internal Revenue Service Rulings on the subject had not been promulgated. The subsequent promulgation and issuance of these Regulations and Rulings, therefore, had the effect of abrogating many of the proposals which had been advocated in these articles. These Regulations and Rulings did not answer all of the questions, and until such time as there is case law on the subject, there will remain many unanswered questions. This article could not, and it does not, deal with the complex Subchapter S provisions of the Code in light of their impact upon each particular fact situation, but it is the hope of this author that the considerations brought forth herein will be of value in assisting the attorney to better appraise his client\u27s situation in relation to Subchapter S