XL Fortran for Linux

Compilateur XL Fortran à hautes performances destiné aux développeurs Linux.

XL Fortran est un compilateur Fortran normalisé, doté de fonctionnalités étendues qui vous aident à créer des applications à hautes performances.

Compilateur optimisé très évolué conçu pour le système d'exploitation Linux, il fonctionne sur les ordinateurs IBM Power Systems équipés de processeurs POWER6.

  • Prend en charge les systèmes d'exploitation des serveurs IBM Power Systems : Red Hat Enterprise Linux 5.2 (RHEL 5.2) et SUSE Linux Enterprise Server 10 SP 2 (SLES10 SP2).
  • Prend en charge un sous-ensemble de la spécification OpenMP Application Programming Interface V3.0, et notamment l'ajout de la parallélisation au niveau des tâches et des boucles.
  • Comprend une implémentation complète d'OpenMP API V2.5 qui permet d'améliorer les performances potentielles des programmes sur les machines multi-processeurs.
  • Les instructions OPEN et INQUIRE ont été enrichies de l'indicateur ENCODING= afin d'indiquer le format de codage du fichier.
  • Des améliorations ont été apportées à –qstrict. 16 nouvelles sous-options sont disponibles, qui vous donnent davantage de contrôle sur les transformations d'optimisation.
  • –qreport contient désormais des informations concernant le nombre de flux créés pour chaque boucle et les boucles qui ne peuvent être vectorisées avec SIMD en raison de la présence de références non-stride-one.
  • Des options prennent en charge le débogage d'application à l'aide d'outils de débogage symboliques standard.

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FeatureBenefit
Industry leading optimization and performance tuning technology.
Improve compilation time and scalability for a wide range of applications at a number of commonly used optimization levels. The result is faster compile time for applications that contain Fortran 90 array language and Fortran modules. The improved scalability allows significantly larger programs to be optimized.
Compiler optimization reports provide information about the optimizations that the compiler was able to perform and also which optimizations were missed. Reports about compiler optimizations identify opportunities to improve code performance thereby reducing programming effort to tune applications.
Industry-leading optimizations including advanced loop optimizations, aggressive inlining and whole program analysis. Improved performance on POWER architectures for a wide range of applications from highly tuned scientific code to very large commercial applications.
Vector instruction support for systems with processor architectures and operating systems that execute single instruction, multiple data (SIMD) instruction sets, including Vector Multimedia eXtension (VMX) instructions and the POWER7 Vector Scalar eXtension (VSX) instruction set. Simplifies and improves manipulation of vector operations in applications.
High performance libraries specifically tuned for POWER architecture
Mathematical Acceleration Subsystem (MASS) consists of libraries of mathematical intrinsic functions tuned specifically for optimum performance on Power Architecture.
Shared memory parallelization (SMP) runtime library supports both explicit and automatic parallel processing.		 These libraries will increase user productivity, and runtime application performance speeding initial development, resulting in fewer bugs and cutting long-term maintenance costs.
Profile driven optimization
Profile directed feedback (PDF) optimization collects information about an application run with typical input data and then applies transformations to the program based on that information. PDF can ensure the performance of the application is optimized for its important inputs. Application profile monitoring and profile directed feedback capabilities minimize the need for manual tuning to achieve desirable performance on large, complex applications.
SHOWPDF reports provide profiling information that includes block-counter and call-counter profiling information and now cache-miss profiling and value profiling information. SHOWPDF reports identify opportunities to improve code performance thereby reducing programming effort to tune applications.
Debugging capabilities
XL compilers generate debugging information for use by a symbolic debugger. XL compilers help increase programmer productivity and lower maintenance costs by providing information consumable by standard symbolic debugging tools.

The user benefits from a familiar development environment using debugging tools of choice with increased proficiency and productivity, debugging source and optimized code.
Improved capability for debugging optimized code. Users can balance between debug capability and application performance.
Language standards compliance

Supports:


  • Fortran 2003

  • Fortran 95

  • Fortran 90

  • FORTRAN 77

  • Fortran 2008 partial support begins

 XL compilers comply with the latest international programming language standards, including language interoperability standards, providing support for code portability between multiple operating systems and hardware platforms.

XL compilers help protect the investment in existing Fortran source and object code built with previous versions of the compilers allowing users to rebuild and link all the components into the same applications using the latest compiler versions,. Similarly, object code or libraries compiled with previous versions of XL Fortran are still compatible with the newest XL Fortran compiler and runtime environment.
Language extensions to support VMX and VSX vector programming. Simplifies and improves manipulation of vector operations in applications.
Full support for the latest OpenMP 3.1 specification providing new features to support the development of parallel applications. OpenMP is a portable, scalable programming model that provides parallel programmers a simple and flexible, standard interface for developing parallel applications for platforms ranging from the desktop to the supercomputer.

XL Fortran for Linux, V14.1


Operating SystemSoftwareHardware
Linux Red Hat Enterprise Linux 6.2 (RHEL 6.2)
- Red Hat Enterprise Linux 5.7 (RHEL 5.7)
- SUSE Linux Enterprise Server 11 Service Pack 2 (SLES 11 SP2)
- SUSE Linux Enterprise Server 10 Service Pack 4 (SLES 10 SP4)
Instance of GNU Compiler Collection (GCC) and Perl

Refer to XL Fortran for Linux Installation Guide for required packages.		 IBM Power Systems servers supported by SLES 10 SP4, SLES 11 SP2, RHEL 5.7, and RHEL 6.2

250 MB disk space
All versions Frames-capable browser to view HTML-based online documentation

PDF viewer to access PDF documentation

Graphical desktop environment (such as K Desktop Environment (KDE) or GNOME) that supports web browsers and PDF viewers

 

XL Fortran for Linux, V13.1


Operating SystemSoftwareHardware
Supported operating systems

- Red Hat Enterprise Linux 6.0 (RHEL 6.0)
- Red Hat Enterprise Linux 5.5 (RHEL 5.5)
- SUSE Linux Enterprise Server 11 Service Pack 1 (SLES 11 SP1)
- SUSE Linux Enterprise Server 10 Service Pack 2 (SLES 10 SP2)		 - Instance of GNU Compiler Collection (GCC)

- Refer to XL Fortran for Linux Installation Guide for required packages.

- Perl 5.0 or later, to run the installation utility		 IBM Power Systems servers supported by

- Red Hat Enterprise Linux 6.0 (RHEL 6.0)
- Red Hat Enterprise Linux 5.5 (RHEL 5.5)
- SUSE Linux Enterprise Server 11 Service Pack 1 (SLES 11 SP1)
- SUSE Linux Enterprise Server 10 Service Pack 2 (SLES 10 SP2)

Required hard disk space: 200 MB

XL Fortran for Linux, V12.1


Operating SystemSoftwareHardware
Linux Red Hat Enterprise Linux 5.2 (RHEL 5.2) or SUSE Linux Enterprise Server 11 (SLES 11) (with the March 2009 Updates). For instructions on installing XL Fortran for Linux, V12.1 on SLES 11 see Installation steps for SLES 11

gcc 4.1.2 or later for RHEL 5.2 and SLES 10 SP2		 IBM Power Systems servers supporting the IBM Power Architecture.

200 MB disk space

All versions


Operating SystemSoftwareHardware
All versions Frames-capable browser to view HTML-based online documentation

PDF viewer to access PDF documentation

Graphical desktop environment (such as K Desktop Environment (KDE) or GNOME) that supports web browsers and PDF viewers

Gestion du cycle de vie des applications

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XL Fortran for Linux

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