About this software
Lahey Fortran is a commercial Fortran compiler family historically distributed by Lahey Computer Systems, Inc., including Lahey/Fujitsu Fortran and Lahey/GNU Fortran for Windows and Linux. Editions historically offered optimizing compilers, Visual Studio integration, OpenMP and auto-parallelization options, and libraries such as Fujitsu SSL2, BLAS and LAPACK; licensing and official distribution ended December 31, 2022.
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Lahey Fortran
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Benefits
- Standards compliance: Supports Fortran 95, 90, and legacy Fortran 77 code.
- Optimizing code generation: Includes optimizing compilers and Fujitsu code generators for performance.
- Parallelization support: Provides OpenMP and auto-parallelization tool options for multi-core systems.
- Development integration: Professional editions integrated with Visual Studio shells for IDE workflows.
- Libraries and tools: Ship included math libraries, debuggers, and GUI/graphics toolkits.
Available languages
- English
Support information
- Vendor documentation: Product manuals and online documentation were provided by Lahey during the product lifecycle.
- License activation: License activation mechanisms existed historically, and activation availability may be affected after company closure.
- Third-party support options: Some third-party vendors continue Lahey-compatible support subject to their own policies and limitations.
- Compatibility notes: Compatibility with Fujitsu libraries, BLAS, LAPACK and Winteracter graphics is documented by resellers and community pages.
- Community resources: Fortran community archives, wikis, and reseller pages retain technical notes and historical guides.
Frequently asked questions
What platforms does Lahey Fortran support?
Historically Lahey Fortran supported Windows and Linux platforms, with specific edition compatibility varying by release and architecture.
Which Fortran standards are supported by Lahey Fortran?
Lahey/Fujitsu Fortran implementations supported Fortran 95 and Fortran 90 features, while maintaining compatibility with legacy Fortran 77 code.
Does Lahey Fortran support OpenMP and parallelization?
Yes; certain Lahey editions included OpenMP support and Fujitsu auto-parallelization features for parallel execution.
Are Visual Studio integrations available?
Professional and Enterprise editions were bundled with a Visual Studio shell integration for IDE-based development.
Is Lahey Fortran still licensed and distributed?
Lahey Computer Systems ceased licensing Fortran language systems effective December 31, 2022; third parties may provide compatibility or alternative tools.