IBM XL Fortran Advanced Edition for Linux, V11.1 exploits the capabilities of the IBM POWER6 processorsIBM United States Software Announcement 207-158
July 24, 2007
|At a glance|
With XL Fortran's extensive optimization technology, you have a powerful development environment to build Fortran applications. XL Fortran Advanced Edition for Linux, V11.1 includes:
- Enhanced support for Fortran 2003
- Specific optimizations and tuning for the latest POWER6 processors
- Additional new features and enhancements for increased performance and optimization tuning
- New compiler options and directives
For ordering, contact:
Your IBM representative, an IBM Business Partner, or IBM Americas Call Centers at
Back to top
XL Fortran Advanced Edition V11.1 for Linux is a standards-based compiler. XL Fortran fully supports OpenMP API V2.5 and is fully compliant with FORTRAN 77, Fortran 90, and Fortran 95 standards. This compiler continues to add further support for most of the Fortran 2003 standard. XL Fortran supports both IBM and many industry extensions.
XL Fortran Advanced Edition for Linux is a highly optimizing, native Fortran compiler designed to exploit the System p hardware. In addition to the exploitation of POWER4, POWER5, POWER5+, and BladeCenter® JS20, and BladeCenter JS21 with PowerPC® 970 architecture, XL Fortran V11.1 exploits the newly available POWER6 architecture.
- Support for the new POWER6 processors
- Enhanced support for Fortran 2003 including implementation of the full Fortran 2003 object-oriented model, I/O enhancements, scoping and data manipulation enhancements, procedure enhancements, and intrinsic function enhancements
- Many new features and enhancements for performance and optimization tuning
- New default settings for -qarch and -qtune to tune generated code for optimized performance across a range of recent processor architectures, including POWER6
- New or changed compiler options and directives
Back to top
- System p servers and PowerPC processor-based blades supported by SLES 10 Service Pack 1 or RHEL5
- Disk space: 200 MB
Back to top
|Planned availability dates|
- July 27, 2007: Electronic software delivery
- Aug 24, 2007: Physical software delivery
Back to top
The XL Fortran compiler continues to deliver additional functionality and enhancements, especially in the areas of performance and optimization, support for language enhancements, and support for new processors.
Support for the new POWER6 processors
With V11.1, the XL Fortran compiler exploits, optimizes, and tunes for the latest POWER6 processors. XL Fortran V11.1 expands the list of -qarch and -qtune suboptions to support the newly-available POWER6 processors.
Enhanced support for Fortran 2003
Beginning with the V8.1 release, XL Fortran delivered many Fortran 2003 standard features, including:
- BIND(C) for portable interoperability with C code
- Allocatable objects beyond just Fortran 95 arrays
- Stream I/O support
- ASSOCIATE and ENUM statements
- READ with BLANK= and PAD= specifiers
- WRITE with DELIM= specifier
- IEEE and Fortran environment modules
XL Fortran V11.1 builds on this work and adds significant Fortran 2003 enhancements which include:
Implementation of the full Fortran 2003 object-oriented programming model, including:
- Type extension
- Type-bound procedures
- Type finalization
- Polymorphism and runtime type determination, including the SELECT TYPE construct
- Abstract and generic interfaces
- Declaration of abstract types and deferred bindings
- PASS attribute
- User-defined derived type I/O
- New I/O specifiers, including SIGN= and DECIMAL= (DC and DP edit descriptors)
- Asynchronous I/O as defined by Fortran 2003, including the WAIT statement
- User-specified control of rounding during format conversion using the ROUND= specifier and new edit descriptors
- Handling of IEEE infinity and non-a-number in REAL and COMPLEX editing
- Support of PAD= specifier on INQUIRE operations
Scoping and data manipulation enhancements
- Renaming of defined operators on USE statements
- Fortran 2003 VOLATILE statement
- MAX, MIN, MAXLOC, MINLOC, MAXVAL, and MINVAL intrinsics for character types
- COMPLEX literals
- Pointer assignment and initialization expression enhancements
- Improved structure constructors
- Allocatable enhancements, including resizing on assignment and MOVE_ALLOC intrinsic
- Explicit type specification in an array constructor
- Generic bindings for interfaces, defined operators, and defined assignment
- VALUE attribute for characters of length greater than one and derived types with allocatable components
- Procedure pointers, procedure declaration statement, and procedure pointers as derived type components
- Generalization of the MODULE PROCEDURE statement
- Deferred CHARACTER length
Intrinsic function enhancements
- Allow REAL type for COUNT_RATE argument of SYSTEM_CLOCK
- Allow boz-literal constants on INT, REAL, CMPLX, and DBL intrinsics
- Allow a new KIND argument on all instrinsics mandated by Fortran 2003
- Return signed zero results from the ATAN2, LOG, and SQRT intrinsics
- Add SELECTED_CHAR_KIND intrinsic
- Enhanced STOP statement
- Increased the maximum number of continuation lines
The following new invocation commands are introduced in XL Fortran V11.1 to instruct the compiler to more closely adhere to Fortran 2003 language standards when compiling your applications:
- xlf2003_r (for threaded applications)
Architecture and processor support
The -qarch and -qtune compiler options control the code generated by the compiler. These compiler options adjust the instructions, scheduling, and other optimizations for a specified target processor or range of processors.
New default setting for -qarch, -qtune
The -qtune=balanced suboption is new for this release and becomes the default -qtune setting when certain -qarch settings are specified. Using -qtune=balance instructs the compiler to tune generated code for optimized performance across a range of recent processor architectures, including POWER6.
New compiler options for POWER6 processors
The -qipa compiler option also adds a new architecture cloning suboption, -qipa=clonearch=pwr6, to support interprocedural analysis (IPA) optimizations on POWER6 processors.
- XL Fortran V11.1 introduces many new performance-related compiler options and directives.
- New directives for this release include PowerPC cache control and POWER6 prefetch extensions and cache control.
Accessibility by people with disabilities
A U.S. Section 508 Voluntary Product Accessibility Template (VPAT) containing details on accessibility compliance can be requested at
Section 508 of the U.S. Rehabilitation Act
XL Fortran Advanced Edition for Linux, V11.1 is capable as of July 27, 2007, when used in accordance with associated IBM documentation, of satisfying the applicable requirements of Section 508 of the Rehabilitation Act, provided that any assistive technology used with the product properly interoperates with it. A US Section 508 Voluntary Product Accessibility Template (VPAT) can be requested via the IBM Web site at
Back to top
XL Fortran Advanced Edition for Linux, V11.1 is part of the family of IBM compilers that support a number of platforms. It joins XL C Enterprise Edition for AIX® and XL C/C++ Enterprise Edition for AIX on System p, XL C/C++ Advanced Edition for Linux and XL Fortran Advanced Edition for AIX on System i and System p, XL C/C++ for z/OS®, ILE C/C++ for OS/400® on System i, and C/C++ for z/VM®. The code base for all of these compilers (C, C++, and Fortran) is the same. This facilitates source-level portability of your applications from these platforms to Linux.
XL Fortran now supports a majority of the Fortran 2003 standard. The following programming language specifications for Fortran are supported:
- ISO/IEC 1539-1:1991(e) and ANSI X3.198-1992 (referred to as Fortran 90 or F90)
- ISO/IEC 1539-1:1997 (referred to as Fortran 95 or F95)
Extensions to the Fortran 95 standard
- Industry extensions that are found in Fortran products from various compiler vendors
- Extensions specified in SAA® Fortran
- The majority of the Fortran 2003 standard, except for derived type parameters, but including object-oriented programming
- Common Fortran language extensions as defined by other compiler vendors, in addition to those defined by IBM
In addition to the standardized language levels, XL Fortran supports language extensions, including:
- OpenMP V2.5 extensions to support portable parallelized programming
- Language extensions to support vector programming
With representation from the IBM compiler development team on the Fortran language standards committee and on the OpenMP industry specifications committee, IBM is in a position to understand the latest updates, clarifications, and recommendations to the Fortran and OpenMP standards. Support of programming language standards allows for portability of your source code among a variety of compiler implementations.
Business Partner information
If you are a Direct Reseller - System Reseller acquiring products from IBM, you may link directly to Business Partner information for this announcement. A PartnerWorld ID and password are required (use IBM ID).
Back to top
Product information is available via the Offering Information Web site
Also, visit the Passport Advantage® Web site
Back to top
No publications are shipped with this program.
The IBM Publications Center
The Publications Center is a worldwide central repository for IBM product publications and marketing material with a catalog of 70,000 items. Extensive search facilities are provided. Payment options for orders are via credit card (in the U.S.) or customer number for 20 countries. A large number of publications are available online in various file formats, and they can all be downloaded by all countries, free of charge.
Displayable softcopy publications: The publications for XL Fortran Advanced Edition for Linux, V11.1 are offered in displayable softcopy form.
All unlicensed manuals are included.
The files are shipped on the CD-ROM.
All unlicensed manuals are also available from the XL Fortran Web site at
Back to top
For XL Fortran Advanced Edition for Linux, V11.1:
One of the following systems supported by your Linux distributions:
- POWER technology-based system (POWER4 or higher)
- BladeCenter® JS20
- BladeCenter JS21
- System p
- System i
- Approximately 200 MB for program packages
- Minimum of 2 GB for paging
- Minimum of 512 MB for temporary files
Note: High levels of optimization may require more space for paging and temporary files.
For XL Fortran Advanced Edition for Linux, V11.1
One of the following Linux distributions:
- SUSE Linux Enterprise Server 10 (SLES 10) Service Pack 1 for IBM POWER
- Red Hat Enterprise Linux AS 5 (RHEL5) for IBM POWER
An instance of GNU Compiler Collection (GCC)
- SLES 10 gcc 4.1.2, or later
- RHEL5 gcc 4.1.1, or later
- Perl 5.0, or later, to run the installation utility
- Graphical desktop environment such as K Desktop Environment (KDE) for applications or GNOME
- Frames-capable HTML browser to access help and other web pages
- Frames-capable browser to access HTML documentation
- Portable Document Format (PDF) viewer to access PDF documentation
For information regarding XL Fortran, visit
For information regarding IBM Application Development, visit
The XL Fortran Advanced Edition for Linux, V11.1 package contains:
- One CD-ROM containing the XL Fortran Advanced Edition for Linux, V11.1 compiler
- Passport Advantage customer letter
- Passport Advantage media pack pointer sheet
This program, when downloaded from a Web site, contains the applicable IBM license agreement, and License Information, if appropriate, and will be presented for acceptance at the time of installation of the program. For future reference, the license and License Information will be stored in a directory such as LICENSE.TXT.
Security, auditability, and control
XL Fortran Advanced Edition for Linux, V11.1 uses the security and auditability features of the host hardware or software. The customer is responsible for evaluation, selection, and implementation of security features, administrative procedures, and appropriate controls in application systems and communication facilities.
IBM Software Services has the breadth, depth, and reach to manage your services needs. You can leverage the deep technical skills of our lab-based, software services team and the business consulting, project management, and infrastructure expertise of our IBM Global Services team. Also, we extend our IBM Software Services reach through IBM Business Partners to provide an unmatched portfolio of capabilities. Together, we provide the global reach, intellectual capital, industry insight, and technology leadership to support any critical business need.
To learn more about IBM Software Services or to contact a Software Services sales specialist, visit
Back to top
Product Group: IBM XL Fortran Product Identifier Description: XL Fortran PID: 5724-S74 Product Category: XL Fortran
Part number or Program name PID number Charge metric XL Fortran Advanced Edition 5724-S74 Authorized user for Linux, V11.1 Concurrent user XL Fortran Advanced Edition BA0IKML Authorized user for Linux, V11.1 Concurrent user
A concurrent user is one and only one individual within or outside your enterprise. The number of PoEs required is for the highest number of users simultaneously accessing the program or any program components either directly or indirectly (via a multiplexing program, device, or application server) through any means on behalf of the user.
An authorized user is one and only one individual (named or unnamed) within or outside your enterprise. A PoE must be obtained for each individual user accessing the program in any manner. A program licensed under an authorized user PoE may be installed on a single computer or server, and accessed by multiple users, provided that a PoE has been obtained for each individual user accessing the program either directly or indirectly (via a multiplexing program, device, or application server) through any means on behalf of the user.
Part Program name/description number XL Fortran Advanced Edition for Linux, V11.1 BA0IKML Media Package Multilingual XL Fortran Advanced Edition for Linux D54L2LL authorized user LIC+SW MAINT 12 Months XL Fortran Advanced Edition for Linux E01M4LL authorized user ANNUAL SW MAINT RNWL XL Fortran Advanced Edition for Linux D54L3LL authorized user SW MAINT REINSTATE 12 Months XL Fortran Advanced Edition for Linux D54KWLL concurrent user LIC+SW MAINT 12 Months XL Fortran Advanced Edition for Linux E01M1LL concurrent user ANNUAL SW MAINT RNWL XL Fortran Advanced Edition for Linux D54KZLL concurrent user SW MAINT REINSTATE 12 Months
Passport Advantage customer: Media Pack entitlement details
Customers with active Maintenance or subscription for the products listed below are entitled to receive the corresponding media pack.
Entitled Maintenance Offerings description XL Fortran Advanced Edition for Linux Media Pack description Part number XL Fortran Advanced Edition Media Pack Multilingual V11 BA0IKML 5724-S74 XL Fortran Advanced Edition V11.1 for Linux Basic License one-time charge Feature Feature description number XL Fortran Advanced Edition for Linux, V11.1 0192 Per authorized user with 1 Year SW Maintenance XL Fortran Advanced Edition for Linux, V11.1 0193 Per concurrent user with 1 Year SW Maintenance Media supply Description feature number XL Fortran Advanced Edition for Linux, V11.1 5809 Media Pack Multilingual
This software license includes Software Maintenance, previously referred to as Software Subscription and Technical Support.
Extending coverage for a total of three years from date of acquisition may be elected. Order the program number, feature number, and quantity to extend coverage for your software licenses. If maintenance has expired, specify the after license feature number.
The following tables contain the PIDs and feature numbers for IBM XL Fortran Advanced Edition for Linux that were previously announced. The information is presented again for your convenience during the ordering process.
Program Name: XL Fortran Advanced Edition V11.1 for Linux Maintenance IASP PID: 5733-A99 (SW Maintenance No Charge Registration, SW Maintenance 1 Year Renewal) Description Feature number Per authorized user SW Maintenance No Charge 4879 Registration Per authorized user SW Maintenance 1 Year 4880 Renewal Per concurrent user SW Maintenance No Charge 4881 Registration Per concurrent user SW Maintenance 1 Year 4882 Renewal Program Name: XL Fortran Advanced Edition V11.1 for Linux Maintenance IASP PID: 5733-D05 (SW Maintenance 1 Year After License) Description Feature number Per authorized user SW Maintenance 1 Year 4877 After License Per concurrent user SW Maintenance 1 Year 4878 After License Program Name: XL Fortran Advanced Edition V11.1 for Linux Maintenance IASP PID: 5733-D03 (SW Maintenance 3 Year Registration) Description Feature number Per authorized user SW Maintenance 3 Year 4885 Registration Per concurrent user SW Maintenance 3 Year 4886 Registration Program Name: XL Fortran Advanced Edition V11.1 for Linux Maintenance IASP PID: 5733-D04 (SW Maintenance 3 Year Renewal) Description Feature number Per authorized user SW Maintenance 3 Year 4887 Renewal Per concurrent user SW Maintenance 3 Year 4888 Renewal Program Name: XL Fortran Advanced Edition V11.1 for Linux Maintenance IASP PID: 5733-D06 (SW Maintenance 3 Year After License) Description Feature number Per authorized user SW Maintenance 3 Year 4883 After License Per concurrent user SW Maintenance 3 Year 4884 After License
Customers who purchased XL Fortran Advanced Edition V10.1 for Linux or previous version of XL Fortran for Linux with valid maintenance are entitled to receive XL Fortran Advanced Edition V11.1 for Linux at no charge. Eligible customer should add the applicable PID and media supply feature number from the table below, to their existing maintenance record.
Description PID number Media supply feature number XL Fortran Advanced 5724-S74 5809 Edition V11.1 for Linux Media Pack Multilingual
Back to top
|Terms and conditions|
The information provided in this announcement letter is for reference and convenience purposes only. The terms and conditions that govern any transaction with IBM are contained in the applicable contract documents such as the IBM International Program License Agreement, IBM International Passport Advantage Agreement, and the IBM Agreement for Acquisition of Software Maintenance.
Agreement: IBM International Program License Agreement including the License Information (LI) document and Proof of Entitlement (PoE) govern your use of the program. PoEs are required for all authorized use. Part number products only, offered outside of Passport Advantage, where applicable, are license only and do not include Software Maintenance.
This software license includes Software Maintenance, previously referred to as Software Subscription and Technical Support.
Agreement for acquisition of Software Maintenance: The IBM Agreement for Acquisition of Software Maintenance (Z125-6011) applies for maintenance and does not require customer signatures.
License information form number: L-MCHN-72RSGR
The program's License Information will be available for review on the IBM Software License Agreement Web site
Limited warranty: Yes
Limited warranty: IBM warrants that when the program is used in the specified operating environment, it will conform to its specifications. The warranty applies only to the unmodified portion of the program. IBM does not warrant uninterrupted or error-free operation of the program or that IBM will correct all program defects. You are responsible for the results obtained from the use of the program.
IBM provides you with access to IBM databases containing information on known program defects, defect corrections, restrictions, and bypasses at no additional charge. Consult the IBM Software Support Guide for further information at
IBM will maintain this information for at least one year after the original licensee acquires the program (warranty period).
Program technical support: Technical support of a program product will be available for a minimum of three years from the general availability date, as long as your Software Maintenance is in effect. This technical support allows you to obtain assistance (via telephone or electronic means) from IBM for product-specific, task-oriented questions regarding the installation and operation of the program product. Software Maintenance also provides you with access to updates, releases, and versions of the program. You will be notified, via announcement letter, of discontinuance of support with 12 months' notice. If you require additional technical support from IBM, including an extension of support beyond the discontinuance date, contact your IBM representative or IBM Business Partner. This extension may be available for a fee.
Money-back guarantee: If for any reason you are dissatisfied with the program and you are the original licensee, you may obtain a refund of the amount you paid for it, if within 30 days of your invoice date you return the program and its PoE to the party from whom you obtained it. If you downloaded the program, you may contact the party from whom you acquired it for instructions on how to obtain the refund.
For clarification, note that (1) for programs acquired under the IBM International Passport Advantage offering, this term applies only to your first acquisition of the program and (2) for programs acquired under any of the IBM On/Off Capacity on Demand (On/Off CoD) software offerings, this term does not apply since these offerings apply to programs already acquired and in use by you.
Authorization for use on home/portable computer: The program may be stored on the primary machine and another machine, provided that the program is not in active use on both machines at the same time.
Volume orders (IVO): Yes. Contact your IBM representative.
Passport Advantage applies: Yes, and through the Passport Advantage Web site at
Software Maintenance applies: Yes. Software Maintenance, previously referred to as Software Subscription and Technical Support, is now included in the Passport Advantage Agreement. Installation and technical support for the products announced in this announcement is provided by the Software Maintenance offering of the IBM International Passport Advantage Agreement. This fee service enhances customer productivity by providing voice or electronic access into the IBM support organizations.
IBM includes one year of Software Maintenance with the initial license acquisition of each program acquired. The initial period of Software Maintenance can be extended by the purchase of a renewal option.
While your Software Maintenance is in effect, IBM provides you assistance for your routine, short duration installation and usage (how-to) questions, and code-related questions. IBM provides assistance via telephone and, if available, electronic access, only to your information systems (IS) technical support personnel during the normal business hours (published prime shift hours) of your IBM support center. (This assistance is not available to your end users.) IBM provides Severity 1 assistance 24 hours a day, every day of the year. For additional details, consult your IBM Software Support Guide at
Software Maintenance does not include assistance for the design and development of applications, your use of programs in other than their specified operating environment, or failures caused by products for which IBM is not responsible under this agreement.
For additional information about the Passport Advantage Agreement, visit the Passport Advantage Web site at
All distributed software licenses include Software Maintenance (Software Subscription and Technical Support) for a period of 12 months from the date of acquisition, providing a streamlined way to acquire IBM software and assure technical support coverage for all licenses. Extending coverage, for a total of three years from date of acquisition, may be elected. For additional information, refer to Changes to Distributed Software Products Model for Products Outside Passport Advantage 201-201 , dated July 10, 2001.
Variable charges apply: No
Educational allowance available
For Passport Advantage information and charges, contact your IBM representative or authorized IBM Business Partner. Additional information is also available on the following Passport Advantage Web site
Business Partner information: If you are an IBM Business Partner Distributor for Workstation Software acquiring products from IBM, you may link to Passport Advantage Online for resellers where you can obtain Business Partner pricing information. An IBM ID and password are required.
Information on charges is available at
Select "United States" and then click on "IBMLink 2000."
Back to top
The prices provided in this announcement are suggested retail prices for the U.S. only and are provided for your information only. Dealer prices may vary, and prices may also vary by country. Prices are subject to change without notice. For additional information and current prices, contact your local IBM representative.
One- time charge One- Program feature time Description number number charge XL Fortran Advanced Edition 5724-S74 0192 $1,030 for Linux, V11.1 per authorized User + 1 Yr SW Maint XL Fortran Advanced Edition 5724-S74 0193 1,540 for Linux, V11.1 per concurrent user + 1 Yr SW Maint
Back to top
To order, contact the Americas Call Centers, your local IBM representative, or your IBM Business Partner.
To identify your local IBM representative or IBM Business Partner, call 800-IBM-4YOU (426-4968).
Phone: 800-IBM-CALL (426-2255) Fax: 800-2IBM-FAX (242-6329) Internet: firstname.lastname@example.org Mail: IBM Americas Call Centers Dept. Teleweb Customer Support, 9th floor 105 Moatfield Drive North York, Ontario Canada M3B 3R1 Reference: RE001
The Americas Call Centers, our national direct marketing organization, can add your name to the mailing list for catalogs of IBM products.
Note: Shipments will begin after the planned availability date.
Back to top