Intel® Fortran Compiler

Build applications that can scale for the future with optimized code designed for Intel® architecture.

A Tradition of Trusted Application Performance

The Intel® Fortran Compiler is built on a long history of generating optimized code that supports industry standards while taking advantage of built-in technology for Intel® Xeon® Scalable processors and Intel® Core™ processors. Staying aligned with Intel's evolving and diverse architectures, the compiler now supports GPUs.

 

Standards: The Path Forward

There are two versions of this compiler.

Intel Fortran Compiler: provides CPU and GPU offload support

Intel Fortran Compiler Classic: provides continuity with existing CPU-focused workflows and is provided to support users making the transition to the Intel Fortran Compiler. 

Both versions integrate seamlessly with popular third-party compilers, development environments, and operating systems.

Download as Part of the Toolkit

Intel Fortran Compilers are included in the Intel® HPC Toolkit. Get the toolkit to analyze, optimize, and deliver applications that scale.

Develop in the Intel® Tiber™ Developer Cloud

Build and optimize oneAPI multiarchitecture applications using the latest Intel-optimized oneAPI and AI tools, and test your workloads across Intel® CPUs and GPUs. No hardware installations, software downloads, or configuration necessary.


For FPGA and People's Republic of China (PRC) Based Developers

Download the Stand-Alone Version

A stand-alone download of the Intel Fortran Compiler is available. You can download binaries from Intel or choose your preferred repository.

      

Runtime Version: Windows* | Linux*

Features

Cross-Architecture Compilation

  • Improves development productivity by targeting CPUs and GPUs through single-source code while permitting custom tuning 
  • Supports broad Fortran language standards, including select Fortran 2023 support
  • Incorporates industry standards support for OpenMP* 4.5, and near-complete OpenMP 5.0, 5.1, and 5.2 for CPU and GPU offload, and select new features of OpenMP TR12.
  • Uses well-proven LLVM* compiler technology and Intel's history of compiler leadership

 

 

Built-In Performance

  • Takes advantage of multicore, Single Instruction Multiple Data (SIMD) vectorization, and multiprocessor systems with OpenMP, automatic parallelism, coarrays, and DO CONCURRENT for GPU offload
  • Optimizes code with an automatic processor dispatch feature

 

Development Environment Flexibility

Use the compiler in command line or in a supported IDE:

  • Microsoft Visual Studio* (Windows only)
  • Eclipse* C/C++ Development Tooling (CDT, Linux only)

Benchmarks

Intel Fortran Compiler Classic Boosts Application Performance on Linux*

What Customers are Saying

"The INTES FEM solver PERMAS (PERMAS is among the most advanced finite element software systems worldwide) with the new LLVM-based Intel Fortran Compiler, we decided to provide PERMAS also with the Intel Fortran Compiler compiled version as a commercial product. The most recent PERMAS application compiled with latest Intel Fortran Compiler version shows at par performance in comparison to the classical most recent Intel Fortran Compiler Classic version."

— INTES GmbH

"Intel Fortran Compiler outperforms GNU* Fortran (GFortran) by more than 40 percent when testing various scenarios on the complex Stokes Inversion based on Response functions (SIR) numerical code on Ubuntu Linux*. Numerical results were identical between the two compilers, and saved me precious time and effort."

— Carlos Quintero Noda, doctor of astrophysics; International Top Young Fellow, Japan Aerospace Exploration Agency (JAXA)

"I am using Intel Fortran Compiler to develop an automated forest cover identification system from digital aerial images forming stereo pairs. This system uses advanced texture and shape analysis to identify and classify the forest cover (species, density, and height) in order to produce forest inventory maps. Stereo matching is used to produce 3D digital canopy models that are subsequently analyzed by the texture and shape classification program. The advantages of Intel Fortran Compiler are:
  • Integration within Microsoft Visual Studio*, thus providing a complete, integrated development environment including a Fortran-aware debugger
  • State-of-the-art optimizations for the latest Intel processors (such as Intel® Advanced Vector Extensions instructions) and automatic parallelization
  • QuickWin library to rapidly build a Windows interface (the image interpretation system uses the QuickWin library)

— Jean Vezina, software developer and forest engineer

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Specifications

Intel Fortran Compiler
Processors:
  • Intel Xeon Scalable processors
  • Intel Xeon processor family
  • Intel® Core™ Ultra processors
  • Intel Core processors
  • Intel Atom® processors

 

GPUs:
  • Intel® UHD Graphics for 11th generation Intel processors or newer
  • Intel® Iris® Xᵉ graphics or newer
  • Intel® Arc™ graphics
  • Intel® Data Center GPU Flex Series
  • Intel® Data Center GPU Max Series

 

FPGAs:
  • Intel® Stratix® 10 FPGA
  • Intel® Agilex FPGA
  • Intel® Programmable Acceleration Card with Intel® Arria® 10 GX FPGA
Host and target operating systems:
  • Windows
  • Linux

 

Language:
  • Fortran – Full 77, 90, 95, 2003, 2008, 2018, and select 2023 (see the release notes for details)

 

Development environment:
  • Microsoft Visual Studio

 

Threading:

 

†OpenMP host and offload support is available only in Intel Fortran Compiler

For more information, see the system requirements.

Intel Fortran Compiler Classic
Processors:
  • Intel Xeon Scalable processors
  • Intel Xeon processor family
  • Intel Core processors

 

Host and target operating systems:
  • Windows
  • Linux

 

Language:
  • Fortran – Full 77, 90, 95, 2003, 2008, and 2018 (see the release notes for details)

 

Development environment:
  • Microsoft Visual Studio

 

Threading:
  • OpenMP††
  • Native threads

 

††Only OpenMP host support is available

For more information, see the system requirements.

Get Help

Your success is our success. Access this support resource when you need assistance.

For additional help, see our general oneAPI Support.

Related Product

Intel® oneAPI DPC++/C++ Compiler

This standards-based, cross-architecture compiler builds high-performance applications by generating optimized code for Intel Xeon Scalable processors, Intel Core processors, Intel Atom® processors, and supported GPUs and other accelerators. It allows you to:

  • Support open standards of C, C++, SYCL*, and OpenMP
  • Generate optimized binary host code and accelerator code
  • Work with a familiar set of tools on your preferred platform: Windows, Linux

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