Developer tools Fortran Compiler Family Open XL Fortran for Linux on Power IBM Open XL Fortran for Linux on Power
IBM's next-generation Fortran compiler to develop complex, computationally intensive programs and optimize application performance on your Power® Enterprise platforms
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What can IBM Open XL Fortran for Linux on Power do for you?

 

IBM® Open XL Fortran for Linux® on Power is IBM’s next-generation Fortran compiler, facilitating the creation and maintenance of applications written in Fortran for use on IBM Power. It optimizes your infrastructure on IBM Power platforms, supporting extensive numerical, scientific, and high-performance computing. With full exploitation of the latest Power10 architecture, IBM Open XL Fortran for Linux on Power can generate code that leverages the capabilities of Power10 to maximize your hardware utilization. 

IBM Open XL Fortran for Linux on Power combines IBM XL Fortran technology with LLVM compiler infrastructure. LLVM is an open-source compilation framework that is actively maintained by a large development community, supporting multiple architectures and programming languages. 

Legacy IBM XL Fortran for Linux compilers are still available for use. Go to the resources tab to learn more.
 

 

Benefits
Maximize your Power hardware ROI

Capitalize on Power10 architecture, such as Matrix Multiply Accelerator (MMA), and maximize your return on investment with full hardware exploitation.

Optimize application performance

Take advantage of both common LLVM optimizations and IBM’s industry-leading technologies to improve workload performance.

Improve developer productivity

Provide LLVM diagnostic and reporting capabilities and offer various LLVM-based utilities to make your development work more efficient.

Enable continuous delivery

Faster build speed helps to shorten the development cycle, enable faster iterations, and provide continuous delivery for business-critical applications on Linux.

Accelerate the shift to the hybrid cloud model

Offer new monthly licenses per the virtual process core (VPC) charge unit. Enable license of IBM Open XL compilers on virtual servers per the needed capacities when you transition to hybrid cloud.

Migrate applications to Power easily

Comply with international programming language standards, including Fortran 2003, a subset of Fortran 2008, and language interoperability standards.

Features
Adoption of the LLVM infrastructures

Combines the IBM XL Fortran frontend with the LLVM infrastructure. Enables you to enjoy the industry-leading Fortran implementation while gaining additional capabilities provided by the LLVM infrastructure.

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Exploitation of the latest Power10 architecture

Fully exploits Power10 architecture. Provides Power10 architecture options, built-in functions, and tuned library functions to maximize the hardware ROI.

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Link Time Optimization (LTO)

Provides program optimization during linking. Enables you to take advantage of intermodular optimizations without making any significant changes to the makefiles or build system.

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Profile Guided Optimization (PGO)

Provides compiler optimization technique in computer programming that uses profiling to improve program runtime performance.

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Language standard compliance

Supports FORTRAN 77, Fortran 90, Fortran 95, Fortran 2003, and a subset of Fortran 2008; supports a subset of Technical Specification 29113 for further interoperability of Fortran with C; helps to protect investments in existing Fortran source and object code that is built with previous versions of the compilers; supports the compatibility of object code or libraries that are compiled with previous versions of IBM XL Fortran with the new IBM Open XL Fortran compiler and runtime environment.

High-performance libraries

Provides a set of libraries for high-performance mathematical computing including the Mathematical Acceleration Subsystem (MASS) and Basic Linear Algebra Subprograms (BLAS).

Optimization reports

Provides information to help you utilize compiler features to optimize your applications.

Vector programming

Provides language extensions to support vector multimedia extension (VMX) and vector scalar extension (VSX) programming.

Technical details Software requirements
  • Red Hat® Enterprise Linux (RHEL) 8.4, 8.6, or 9.0
  • Ubuntu 20.24 or 22.04
  • SUSE Linux Enterprise Server (SLES) 15 SP3
See a complete list of software requirements
Hardware requirements

Use any IBM Power server as long as it is supported by your operating system distribution.

  • Approximately 200 MB for product packages
  • Minimum of 2 GB hard drive space for paging
  • Minimum of 512 MB for temporary files
  • 2 GB RAM minimum; 4 GB or more RAM recommended
See a complete list of hardware requirements
Pricing

Perpetual license - Authorized user

Perpetual license - Concurrent user

Monthly license (NEW) – VPC

One license per unique user

Starting at
USD 4,350.00*
per authorized user

Shared access for multiple users

Starting at
USD 12,900.00*
per concurrent user

Monthly license charged per virtual processor core (VPC)

Starting at
USD 97.90*
per VPC per month

Purchase now

The number of licenses required is the number of unique users using the compiler

The number of licenses required is the maximum number of users using the compiler at the same time

The number of licenses required is based on the capacity of the env in which the compiler is used

Purchased through IBM® Passport Advantage® (PA) or Entitled Software fulfillment system

Purchased through PA or Entitled Software fulfillment system

Purchased through PA, Entitled Software fulfillment system, or online through Purchase now button

Non-shareable license

Potential lower price than multiple Authorized user licenses

More flexible pricing option (pay monthly as you go)

More flexible pricing option (pay monthly as you go)

Includes 12 months of 24x7 support and access to new software features

Includes 24x7 support for the purchased term and access to new software features

Resources Announcement: IBM Open XL Fortran for Linux on Power 17.1.1

IBM Open XL Fortran for Linux on Power 17.1.1 adopts the LLVM infrastructure and supports IBM Power10 processor-based systems.

Read the documentation
IBM Open XL Fortran for Linux on Power 17.1.1 Data Sheet

A comprehensive reference written from a benefit perspective that outlines functionality, advantages, and capabilities.

Read the Data Sheet
IBM Open XL Fortran for Linux on Power 17.1.1 documentation

Information about how to maintain and use IBM Open XL Fortran for Linux on Power 17.1.1.

Browse the product documentation
IBM XL Fortran for Linux 16.1.1 documentation

Information about how to maintain and use IBM XL Fortran for Linux 16.1.1.

Read the documentation
IBM XL Fortran for Linux 16.1.1 Data Sheet

A comprehensive reference written from a benefit perspective that outlines functionality, advantages, and capabilities.

Read the Data Sheet
Licensed software: IBM XL Fortran for Linux 16.1.1

The licensed version of IBM XL Fortran for Linux 16.1.1 for download.

Get Started
Documentation updates to XL C/C++ and Fortran compilers on AIX and Linux

Change details to the documentation of XL C/C++ and Fortran compilers on AIX® and Linux starting from 2020.

Read the documentation
Roadmap to optimize your applications with IBM XL compilers

A typical roadmap to boost your application step-by-step with IBM XL compilers.

Watch the video (3:59)
Why IBM XL Compilers on Power Systems

A quick overview of different features and capabilities you can enjoy when using XL compilers.

Watch the video (3:22)
IBM XL C/C++ and XL Fortran compilers overview

An overview of the history, unique capabilities, performance overview, and a summary of strategic advantages.

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IBM XL Fortran compilers features

An overview of IBM XL Fortran compilers and how their features can help you with your Fortran development needs.

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Code optimization with the IBM XL compilers

An introduction of the most important optimization capabilities, source constructs, and techniques that you can use to maximize the performance of your application.

Read the white paper
Videos for IBM C/C++ and Fortran compilers on Power

See a complete list of videos that are related to IBM C/C++ and Fortran compilers on Power.

Watch video (20:14)
IBM Open XL Fortran for Linux on Power and XL Fortran for Linux documentation library

A collection of announcement letters, product documentation, and white papers.

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Fix list for IBM Open XL Fortran for Linux on Power and XL Fortran for Linux

A complete listing of releases, refreshes, and fix packs that are sorted by version.

Go the service plan overview
How to download the GA image for IBM compilers

Choose the GA image download method based on your ordering channel (PA or AAS).

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FAQs for IBM Compiler Licensing on AIX and Linux on Power

Review the most frequently asked questions about the licensing model of IBM Compilers on AIX and Linux on Power.

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Lifecycle for IBM Open XL Fortran for Linux on Power and XL Fortran for Linux products

Understand the full value of your products and plan for upgrades. Effectively plan your software investment and avoid any gaps in support.

View lifecycle details
Request enhancements

Use the Request for Enhancement (RFE) community to collaborate directly with IBM product development teams and other users.

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Frequently Asked Questions

Read the following technote to learn the most frequently asked questions by clients.

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Expert resources to help you succeed
Community

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Footnotes

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