CFD Code Survey for Thrust Chamber Application

In the quest fo find analytical reference codes, responses from a questionnaire are presented which portray the current computational fluid dynamics (CFD) program status and capability at various organizations, characterizing liquid rocket thrust chamber flow fields. Sample cases are identified to examine the ability, operational condition, and accuracy of the codes. To select the best suited programs for accelerated improvements, evaluation criteria are being proposed

Refactoring Sequential Java Code for Concurrency via Concurrent Libraries

Parallelizing existing sequential programs to run efficiently on multicores is hard. The Java 5 packagejava.util.concurrent (j.u.c.) supports writing concurrent programs: much of the complexity of writing threads-safe and scalable programs is hidden in the library. To use this package, programmers still need to reengineer existing code. This is tedious because it requires changing many lines of code, is error-prone because programmers can use the wrong APIs, and is omission-prone because programmers can miss opportunities to use the enhanced APIs. This paper presents our tool, CONCURRENCER, which enables programmers to refactor sequential code into parallel code that uses j.u.c. concurrent utilities. CONCURRENCER does not require any program annotations, although the transformations are very involved: they span multiple program statements and use custom program analysis. A find-and-replace tool can not perform such transformations. Empirical evaluation shows that CONCURRENCER refactors code effectively: CONCURRENCER correctly identifies and applies transformations that some open-source developers overlooked, and the converted code exhibits good speedup

Studies on automatic parallelization for heterogeneous and homogeneous multicore processors

制度:新 ; 報告番号:甲3537号 ; 学位の種類:博士(工学) ; 授与年月日:2012/2/25 ; 早大学位記番号:新587

Quasistatic computing environments

Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.Includes bibliographical references (p. 55-57).by Ian S. Eslick.M.Eng

Beauty and the Beastly Prime Minister

This essay examines the so-called “turn to beauty” in British fiction since the 1990s as a response to the political and social consequences of Thatcherism. Focusing primarily on four texts—Jonathan Coe’s What a Carve Up! (1994), Julian Barnes’s England, England, (1998), Alan Hollinghurst’s The Line of Beauty (2004), and Zadie Smith’s On Beauty (2005)—this essay argues that conceptions of beauty and beastliness delineate possible boundaries to the neoliberalism with which Thatcherism is associated. Two distinct phases of the beauty/beastliness rhetoric are identified: an ironized utopianism in the 1990s; an ambivalent embrace of global humanism in the 2000s

Language and compiler support for dyanmic code generation

Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.Includes bibliographical references (p. 131-135).by Massimiliano A. Poletto.Ph.D