The investment in code written in the Fortran language over the last four decades means that there is a vast amount of legacy code written to various standards and incorporating numerous vendor extensions to the language Meanwhile the new For tran standard adds many attractive new features to the language while retaining compatibility with Fortran This paper shows how the NAGWare f Tools may be...

The relative simplicity and design of the Fortran 77 language allowed for reasonable interoperability with C and C++. Fortran 90, on the other hand, introduces several new and complex features to the language that severely degrade the ability of a mixed Fortran and C++ development environment. Major new items added to Fortran are userdefined types, pointers, and several new array features. Each...

Fortran is the most widely used programming language for high-performance scientific computing applications, yet in the past the Legion system has not supported objects implemented in Fortran. This paper describes the design and interface of the Legion Basic Fortran Support (BFS) system. This system consists of compiler and runtime library that allow the description of Legion object interfaces ...

1 Summary Fortran D is a version of Fortran enhanced with data decomposition speciications. Case studies illustrate strengths and weaknesses of the prototype Fortran D compiler when compiling linear algebra codes and whole programs. Statement groups, execution conditions, inter-loop communication optimizations, multi-reductions, and array kills for replicated arrays are identiied as new compila...

In the project, we explore LU decomposition with or without pivoting to compute systems of linear equations which are fundamental to any linear algebra problems. We used modular programming in Fortran to perform LU decomposition, forward and backward substitution for three different systems of linear equations. We used python to execute Fortran and compare results generated from our Fortran pro...

There is a huge amount of Fortran code that is too valuable to throw away, but very expensive to maintain. Refactoring tools have had a great impact on the productivity of object-oriented developers and the quality of code. However, highperformance languages such as C and Fortran do not have these tools. Moreover, refactorings specific to high-performance and parallel computing have not yet bee...

The Fortran D language extends Fortran by permitting the user to specify the distribution of array variables across the processors of a parallel computer system. This information can then be used by the compiler to derive a multidimensional parallelization. For programs in which multidimensional arrays have been linearized for optimal performance on vector processors, this strategy will not pro...

FORTRAN is widely viewed as the programming language of choice for scientific and numerical computations. However, limitations of the language lead some to argue that it should be replaced by another language which better lends itself to the production of structured and maintainable code. We provide quantitative data relevant to this argument by reporting on a port of the NAS Kernels benchmark ...