XL Fortran for Linux

Wysoko wydajny kompilator XL Fortran dla twórców aplikacji działających w systemie Linux

XL Fortran to oparty na standardach kompilator języka Fortran wyposażony w rozbudowane funkcje wspomagające tworzenie wysoko wydajnych aplikacji.

Wysoce zaawansowany kompilator optymalizujący dla systemu operacyjnego Linux, działający na serwerach IBM Power Systems, w tym na maszynach z procesorami POWER6.

  • Obsługuje następujące systemy działające na serwerach IBM Power Systems: Red Hat Enterprise Linux 5.2 (RHEL 5.2) oraz SUSE Linux Enterprise Server 10 SP 2 (SLES10 SP2).
  • Obsługuje podzbiór aplikacyjnego interfejsu programistycznego OpenMP w wersji 3.0, w tym równoległe wykonywanie zadań i pętli.
  • Zawiera pełną implementację interfejsu OpenMP API 2.5, którą można wykorzystać do zwiększenia wydajności działania programu na maszynach wieloprocesorowych.
  • Instrukcje OPEN i INQUIRE uzupełniono o specyfikator ENCODING= określający formę kodowania pliku.
  • Udoskonalenia opcji –qstrict. Wprowadzono 16 nowych podopcji. Nowe podopcje strict zapewniają większą kontrolę nad zmianami wprowadzanymi przez optymalizator.
  • Opcja –qreport generuje teraz informacje o liczbie strumieni utworzonych dla każdej pętli oraz o pętlach, których nie można objąć wektoryzacją SIMD z uwagi na referencje typu "non-stride-one".
  • Udostępnia opcje wspomagające debugowanie aplikacji przy użyciu standardowych narzędzi do debugowania symbolicznego.

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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

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XL Fortran for Linux

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