We document our Fortran 77 code for multicanonical simulations of 4D U(1) lattice gauge theory in the neighborhood of its phase transition. This includes programs and routines for canonical simulations using biased Metropolis heatbath updating and overrelaxation, determination of multicanonical weights via a Wang-Landau recursion, and multicanonical simulations with fixed weights supplemented b...

Abstract Fortran is still widely used in scientific computing, and a very large corpus of legacy as well new code written FORTRAN 77. In general this not type safe, so that incorrect programs can compile without errors. paper, we present formal approach to ensure safety through automated program transformation. The objective work reduce programming errors by guaranteeing safety. We the first ri...

High Performance Fortran is a dataparallel language that allows the user to specify the parallelism in his program. It is not always easy to extract the parallelism in a given program. To help the user, an automatic loop parallelizer has been developed : Bouclettes. Bouclettes has been written to validate some scheduling and mapping techniques that are mentioned in this paper. A Fortran 77 loop...

Programming computers is a complex and constantly evolving activity. Technological innovations have consistently increased the speed and complexity of computers, making programming them more difficult. To ease the programming burden, computer languages have been developed. A programming language employs syntactic forms that express the concepts of the language. Programming language concepts hav...

We describe a system that we are developing, whose purpose is to automatically transform data parallel Fortran 90 programs for execution on MIMD distributed memory architectures. The system is called ADAPT (for`Array Distribution Automatic Parallelisation Tool'). Programs for the system should make full use of the array features of Fortran 90, as parallelism is automatically extracted from the ...