(Problem) In the 1950s, computer languages and architectures were in a very primitive state. In particular, there were no high level languages, only assembly languages. (Solution) Backus and his colleagues introduced the first programming language (Fortran) and its compiler for translating from this high-level language to machine language. (Meaning) Before these inventions, computers could only...

In this paper, we present TagC, a new language based on C for distributing parallel and/or pipelined computations. TagC simpliies the programming of distributed memory machines by providing the programmer with a global name space and a mechanism for specifying computation distribution. The main advantage of our paradigm is that it provides a unique framework for expressing both functional paral...

Within Geophysics, seismic methods are an essential tool for petroleum and gas exploration. They produce images of the earth's interior and let explorationists analyze the geological structure of the underground. The memory and time requirements of seismic calculations suggest parallel implementations. In Fortran, however, parallel program code often not only lacks maintainability and reusabili...

Coarrays are a feature of the Fortran 2008 standard that enable parallelism using a small number of additional language elements. The execution model is that of a Partitioned Global Address Space (PGAS) language. The Cray XE architecture is particularly interesting for studying PGAS languages: it scales to very large numbers of processors; the underlying GEMINI interconnect is ideally suited to...

The continued usage of Fortran as a dominant programming language isolates the computational science & engineering (CSE) community and hinders the learning and adoption of modern software engineering methods. The issue is not primarily that Fortran is not suitable for developing many different types of software. Indeed, the are many examples of quality CSE software written in Fortran that can l...

Fortran remains a very widely used programming language for technical computing. Fortran coarrays are new elements in the Fortran standard which aim to support the development of parallel programs without requiring the use of external constructs such as libraries (e.g. MPI) or directives (e.g. OpenMP). Coarrays provide a Partitioned Global Address Space (PGAS) approach to parallel programming i...

pC++ is a language extension to C++ designed to allow programmers to compose distributed data structures with parallel execution semantics. These data structures are organized as \concurrent aggregate" collection classes which can be aligned and distributed over the memory hierarchy of a parallel machine in a manner consistent with the High Performance Fortran Forum (HPF) directives for Fortran...

pC++ is a language extension to C++ designed to allow programmers to compose distributed data structures with parallel execution semantics. These data structures are organized as \concurrent aggregate" collection classes which can be aligned and distributed over the memory hierarchy of a parallel machine in a manner consistent with the High Performance Fortran Forum (HPF) directives for Fortran...

A basic problem in programming for parallel architectures is that each machine has its own design, and also its own specific software for accessing its hardware features. In 1992, as a response to this situation, the High Performance Fortran Forum (HPFF) was founded, under the guidance of Professor Ken Kennedy, to produce a portable Fortran-based interface to parallel machines for the solution ...

First proposed as a mechanism for enhancing Web content, Java has taken off as a serious generalpurpose programming language. Industry and academia alike have expressed great interest in using Java as a programming language for scientific and engineering computations. Applications in these domains are characterized by intensive numerical computing, and often have very high performance requireme...