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Lahey/Fujitsu Fortran Express v7.1

Introduction

A complete installation of this product includes the following:

Lahey appreciates hearing your comments, suggestions, and observations. Any feedback is valuable to us. If you find bugs or other unexpected behavior let us know.

Get Started

To get started, you are encouraged to view the source code of the examples provided. See Getting Started in the LF Express User's Guide.

Additional Resources

The Fortran Web Forum offers a web-based interface to threaded discussions about Lahey Fortrans and related topics. It offers the ability to search both current discussions and an archive of postings from the Lahey E-mail Forum. In addition to the public discussions, it includes Frequently Asked Questions and Known Issues contributed by the Lahey Technical Support Team. Visit www.laheyforum.com to browse or participate in discussions.

Release Notes

  1. New features:
    • Optimization for the Pentium® 4 processor (-tp4 option)
    • Optimization for SSE2 (streaming SIMD extensions for Pentium® 4) architecture (-sse2 option)
    • Full unrolling of nested loops, loop splitting to promote loop exchange, and array optimizations (-o2 option)
    • Activate the zero flush mode of SIMD floating point (-zfm option)
    • Control of the level of loop unrolling (-unroll option)
    • Ability to allocate local variables on the heap (-varheap option)
    • Generate inlined user-defined external procedures (-inline option)
    • Removed limit on object file relocation addresses (-split option removed)
    • Improved performance of MATMUL intrinsic
    • Bug fixes
  2. Users of versions of LF95 prior to v5.70 should see ReadMe_Port_56.txt in the installation folder for more information.