A Survey of Parallel Programming Constructs

This paper surveys the types of parallelism found in Functional, Lisp and Object-Oriented languages. In particular, it concentrates on the addition of high level parallel constructs to these types of languages. The traditional area of the automatic extraction of parallelism by a compiler [39] is ignored here in favor of the addition of new constructs, because the long history of such automatic techniques has shown that they are not sufficient to allow the massive parallelism promised from modem computer architectures [26. 58]. The problem then, simply stated, is given that it is now possible for us to build massively parallel machines and given that our current compilers seem incapable of generating sufficient parallelism automatically, what should the language designer do? A reasonable answer seems to be to add constructs to languages that allow the expression of additional parallelism in a natural way. Indeed that is what the designers of the the Functional, Lisp, and Object-Oriented languages described below have attempted to do. The three particular programming formalisms were picked because most of the initial ideas seem to have been generated by the designers of the functional languages and most of the current activity seems to be in the Lisp and Objected-Oriented domains. There is also a great deal of activity in the Logic programming area, but this activity is more in the area of executing the existing constructs in parallel as opposed to adding constructs specifically designed to increase parallelism

The Do-loop Considered Harmful in Production System Programming

In this paper we focus on some aspects of Expert System programming. In particular we consider some of the language constructs which from part of a new production system language known as Herbal that we are developing at Columbia University. These language constructs greatly increase the expressiveness of a typical production system language and can be efficiently executed on a para11el machine. We briefly describe the DADO machine under development at Columbia University and J basic algorithm for production system execution for that machine. We conclude with a discussion of some performance Statistics recently calculated from m _analysis of production systems simulations and describe the expected effects of our added language constructs on these statistics

||PSL: A Parallel Lisp for the DADO Machine

We describe a system level programming language and integrated environment for programming development on the DADO parallel computer. In addition a set of language constructs augmenting LISP for programming parallel computation on tree structured parallel machine are defined. We discuss the architecture or the DADO machine and present several examples to illustrate the language. In particular we describe how the language provides an integrated approach to the problem or parallel software design. Parallel algorithms may be designed analyzed on a sequential machine under simulation and then simply recompiled to run on a parallel machine. In concluding sections we outline the implementation using the Portable Standard LISP Compiler

The Coexistence of Natural and Supernatural Explanations Across Cultures and Development

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/91141/1/j.1467-8624.2012.01743.x.pd

ANALISIS PENGARUH PROPORSI HUTANG, EPS DAN OVERSUBSCRIPTION TERHADAP FENOMENA UNDERPRICING PADA (IPO)

Tujuan penelitian ini adalah untuk menguji pengaruh proporsi hutang, eps, dan oversubscription terhadap fenomena underpricing pada ipo di Busa efek indonesia 2017-2020. Pengambilan sampel dalam penelitian ini dilakukan dengan menggunakan metode purposive sampling yaitu teknik pengambilan sampel dengan pertimbangan tertentu. Untuk menguji hipotesis, penelitian ini menggunakan data sekunder yang diperoleh dengan cara studi observasi, studi pustaka dan riset internet, dan diolah menggunakan eviews 10. Hasil penelitian ini menunjukan bahwa proporsi hutang tidak berpengaruh secara signifikan terhadap underpricing dengan nilai signifikansi sebesar 0.1111 > 0,05. Earning per share ditemukan berpengaruh positif secara signifikan terhadap underpricing dengan nilai signifikansi sebesar 0.0000 < 0,05. Oversubscription juga ditemukan berpengaruh positif secara signifikan terhadap underpricing dengan nilai signifikansi sebesar 0.0000 < 0.05.

Determinan Nilai Perusahaan Makanan Dan Minuman Di Bursa Efek Indonesia

Dengan menggunakan pendekatan kuantitatif, penelitian dilakukan untuk mengetahui pengaruh Likuiditas, Leverage, dan Profitabilitas terhadap Nilai perusahaan. Populasi dari penelitian ini ialah perusahaan makanan dan minuman di Bursa Efek Indonesia periode 2016-2019 dan menggunakan keseluruhan emiten dengan periode pengamatan empat tahun sebagai sampel karena teknik sampel yang digunakan ialah sampel jenuh, sehingga diperoleh 30 emiten pada industri makanan dan minuman periode 2016-2019 yang menjadi sampel. Penelitian ini diuji melalui E-Views 11 menggunakan Metode Analisis Regresi Data Panel dengan tingkat signifikansi 5%. Penemuan hasil penelitian ialah tidak terdapat pengaruh signifikan antara Likuiditas dengan Nilai Perusahaan, terdapat pengaruh positif signifikan antara Leverage dengan Nilai Perusahaan, terdapat pengaruh positif signifikan antara Profitabilitas dengan Nilai Perusahaan.

Death's door left ajar. by David van Biema

The Justices deny a sweeping right to assisted suicide but might entertain more modest claims. [United States

Eene Reisbeschrijving Van Een Gedeelte Van Nederland Uit Het Begin Der 17De Eeuw

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