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Fortran: Compilers
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Fortran M is a small set of extensions to Fortran that supports a modular approach to the construction of sequential and parallel programs. Fortran M programs use channels to plug together processes which may be written in Fortran M or Fortran 77. Processes communicate by sending and receiving messages on channels. Channels and processes can be created dynamically, but programs remain deterministic unless specialized nondeterministic constructs are used. Fortran M programs can execute on a range of sequential, parallel, and networked computers. This report incorporates both a tutorial introduction to Fortran M and a users guide for the Fortran M compiler developed at Argonne National Laboratory.The Fortran M compiler, supporting software, and documentation are made available free of charge by Argonne National Laboratory, but are protected by a copyright which places certain restrictions on how they may be redistributed.
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With the use of Fortran already well established in 1958, one may wonder why the American committee did not recommend that the international language be an extension of, or at least in some sense compatible with Fortran. There were a number of reasons. The most obvious has to do with the nature and the limitations of the Fortran language itself. A few features of the Fortran language are clumsy because of the very limited experience with compiler languages that existed when Fortran was designed. Most of Fortran&"s most serious limitations occur because Fortran was not designed to provide a completely computer independent language; it was designed as a compiler language for the 704. The handling of a number of statement types, in particular the Do and If statements, reflects the hardware constraints of the 704, and the design philosophy which kept these statements simple and therefore restricted in order to simplify optimization of object coding.
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Mixing C with Fortran subverts use of debugging compilers like Salford FTN95 FTN77 and Lahey LF95. Thus one is more wide open for subtle semantic errors like a subscript out of range, invalid subprogram argument/parameter matching, undefined (mistyped) variable, etc. In a certain sense mixing languages detracts from both portability and integrity of application.
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For C++ and Fortran developers, the compilers boast huge optimizations across a wide range of applications along with some basic auditing of code security. Tags: Development tools, Programming languages, compiler, Fortran, auditing, C++, optimization, developer, Intel Corp., security Image galleries 2007-06-05
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This is a development system based on the well-known GNU compiler system that includes compilers for Fortran 77, C, C++, Objective C, etc. It generates 32 bit MSDOS executables that is Windows 95 long-filename-aware. It is a very complete system with IDEs, graphics libraries, lexical analyser generators (flex), parser generators (bison), text processing utilities (like grep, sed), a program maintainence utility (ie, make), a dos extender, and so on. The compiler, utilities and libraries come with source code.
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Open Watcom is the result of the Open Source release of the Sybase Watcom C/C++ and Fortran compilers. The Open Watcom products are the first mass market, proprietary compilers to be open sourced and, weighing in at nearly three million lines of source code, represent one of the largest pools of commercial source code of any type ever released under an Open Source license. Sybase, Inc. developed the original Watcom code and SciTech Software, Inc. is the official maintainer of the project. The project has already stirred tremendous interest among thousands of developers worldwide, who will use and contribute to its further development. Open Watcom supports software development in Windows, DOS, OS/2, Netware, QNX, and other operating systems. A Linux version of Open Watcom is planned.
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