Introduction

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Release 4.2 of f77 is available under Solaris 2.x operating environment on SPARC, Intel x86, and PowerPC platforms. Release 1.2 of f90 is only available under Solaris 2.x on SPARC systems.

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Note - Features in this guide identified as being unique to a particular system environment or hardware platform are so indicated. However, most aspects of the compilers on these platforms are the same, including functionality, behavior, and features. The multiprocessor features are available as part of the Sun WorkShop on SPARC with Solaris 2.x, and requires a WorkShop license. See the Fortran README files for details.

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• Conform to the ANSI X3.9-1978 (f77) and ISO/IEC 1539-1:1991 (f90) Fortran standards. NIST (formerly GSA and NBS) validates it at appropriate intervals.

• Conform to the standards FIPS 69-1, BS 6832, and MIL-STD-1753.

• Provide an IEEE standard 754-1985 floating-point package.

• Provide support on SPARC® systems for optimization exploiting features of SPARC V8, including the SuperSPARC^TM implementation. These features are defined in the SPARC Architecture Manual: Version 8.

If you invoke the compiler, and a license is available, the compiler starts. If no license is available, your request for a license is put on a queue, and your compile continues when a license becomes available. A single license can be used for any number of simultaneous compiles by a single user on a single machine.

To run Fortran and the various utilities, several licenses may be required, depending on the package you have purchased.

Fortran parallelization features require a Sun Workshop^TM license. See the Fortran README files for details.

• Global program checking for consistency in definition and use of arguments, commons, parameters, and so on, across routines.

• Performance tuning and code optimization capabilities, including global and peephole scalar optimizations, and optimizations based upon run-time performance timings.

• Automatic and explicit loop parallelization is integrated tightly with the compiled code optimizer.

• For f77, many VAX®/VMS® Fortran 5.0 extensions, including:

  • NAMELIST
  • DO WHILE
  • Structures, records, unions, maps
  • Variable format expressions

• Fortran 77 programs may utilize many of the following VMS extensions, to make them portable over both SPARC and VAX systems:

  • Recursion
  • Pointers
  • Double-precision complex
  • Quadruple-precision real (SPARC and PowerPC only)
  • Quadruple-precision complex (SPARC and PowerPC only)

• Interoperability between routines written in C, C++, or Pascal and Fortran programs, since these languages have common calling conventions.

• asa

This utility is a Fortran output filter for printing files that have Fortran carriage-control characters in column one. Use asa to transform files formatted with Fortran carriage-control conventions into files formatted according to UNIX line-printer conventions. See asa(1).

• fsplit

This utility splits one Fortran file of several routines into several files, each with one routine per file. Use fsplit on Fortran 77 source files. See fsplit(1)

• gprof

Profile program run-time performance by procedure. (This utility is available if you do a developer install, rather than an end user install of Solaris 2.x; it is also included if you install the SUNWbtool package.)

• tcov

Profile program run-time performance by statement.

• sbrowser

The SourceBrowser is a Fortran 77 source code and call graph browser that finds occurrences of any symbol in all source files, including header files. It is included with dbx.

• f90browse

An interactive source code and call graph browser for Fortran 90.

• error

A utility to merge compiler error messages with the Fortran source file. (This utility is included if you do a developer install, rather than an end user install of Solaris 2.x; it is also included if you install the SUNWbtool package.)

• -Xlist

An option to check across routines for consistency of arguments, commons, and so on.

• Sun WorkShop

The WorkShop provides a number of debugging utilities such as dbx and a data visualizer, presented within an easy-to-use graphical framework.

Each subprogram in the Sun Performance Library performs the same operation and has the same interface as the standard library versions, but is generally much faster and possibly more accurate.

See the performance_library README file for details.