Users interested in Fortran 64 bit free download generally download:
PGI Visual Fortran brings the PGI suite of high-performance 64-bit and 32-bit parallel Fortran compilers to Microsoft Windows developers using Microsoft Visual Studio. PGI Fortran compilers offer world-class performance and features including both automatic and OpenMP 3.0 parallelization support for optimizing performance on multi-core processors.
An IDE for the Fortran programming language that includes a graphical debugger, a GNU compiler, and a graphical interface library.
Develop software based on the Fortran programming language in the integrated environment featuring a multitude of tools for source level debugging, product documentation management, 32- and 64-bit compiling, syntax highlighting, etc. Integration with Visual Studio is possible.
Develop programs based on Fortran code structures, monitor and modify their compiling processes. Optimize the packaging of and access to specific data, operate with multiple architectures and diverse environments. Save the settings for quick editing and testing.
Athena Visual Studio has been designed to work with three Fortran 95 compilers. The g95 Fortran compiler which is free and comes with the Athena installation package, the Compaq Visual Fortran compiler and the Intel Visual Fortran 95 compiler which must be purchased separately by the user.