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  1. Vectorization and Optimization Reports | Intel® Developer Zone

    https://software.intel.com/en-us/articles/vectorization-and-optimization-reports

    Sep 6, 2012 ... This chapter describes how to run and interpret Intel® C/C++ Compiler and Intel® Fortran Compiler vectorization and optimization reports.

  2. An Introduction to Vectorization with the Intel® Fortran Compiler

    https://software.intel.com/sites/default/files/An_Introduction_to_Vectorization_with_Intel_Fortran_Compiler_021712.pdf

    the Intel® Fortran Compiler will scale over systems using current and future Intel ... be built at default optimization settings (/O2 or -O2) or higher. Add the ...

  3. Getting the Most out of your Intel® Compiler with the New ...

    https://software.intel.com/en-us/articles/getting-the-most-out-of-your-intel-compiler-with-the-new-optimization-reports

    Oct 8, 2014 ... Modern optimizing compilers can often make code transformations that ... with /Q. The switches are the same for both C/C++ and Fortran compilers. ... SIMD load instructions in a vectorized loop are most efficient when the data ...

  4. Getting Started with Intel Compiler Pragmas and Directives | Intel ...

    https://software.intel.com/en-us/articles/getting-started-with-intel-composer-xe-2013-compiler-pragmas-and-directives

    Nov 25, 2013 ... Fortran Directives: Compiler directives are special commands that ... Please read the presentation Vectorization: Pragma/Directive SIMD for an overview. ... The above are key optimization pragmas/directives with which every ...

  5. New Vectorization Diagnostics starting from Intel® Fortran Compiler ...

    https://software.intel.com/en-us/articles/intel-fortran-15-vectorization-diagnostics

    May 26, 2015 ... To obtain a vectorization report use Intel® Fortran Compiler options: ... was not vectorized: compile time constraints prevent loop optimization.

  6. vec-report, Qvec-report | Intel® Developer Zone

    https://software.intel.com/en-us/node/522949

    High-Level Optimizations (HLO) Overview ... Interprocedural Optimization (IPO) ...... Script for Annotating Intel C++ & Fortran Compilers Vectorization Reports, ...

  7. Guided

    https://software.intel.com/sites/default/files/Compiler_QRG_2013.pdf

    A Step-by-Step Approach to Application Tuning with Intel® Compilers .... For Fortran only: makes local arrays automatic and may ... code by the compiler vectorizer at optimization level –O2 or higher and asserts absence of dependencies.

  8. Explicit Vector Programming in Fortran | Intel® Developer Zone

    https://software.intel.com/en-us/articles/explicit-vector-programming-in-fortran

    May 5, 2014 ... Auto-vectorization has its limitations. The compiler must be conservative, and not make any optimizations that could lead to different results ...

  9. What are PEEL and REMAINDER loops? (Fortran and C ...

    https://software.intel.com/en-us/articles/what-are-peel-and-remainder-loops-fortran-vectorization-support

    Oct 28, 2014 ... The vectorization component of the optimization report produced by the Intel® Compiler version 15 may contain remarks such as:

  10. The Importance of Vectorization for Intel® Many Integrated Core ...

    https://software.intel.com/en-us/articles/the-importance-of-vectorization-for-intel-many-integrated-core-architecture-intel-mic

    Mar 26, 2013 ... Ways of doing this range from calling suitably optimized library functions to writing ... For the Intel® Compiler, vectorization is the unrolling of a loop combined with ... 1, ifort -openmp -offload-option,mic,compiler, "-vec-report2" ...

  11. Diagnostic 15521: loop was not vectorized: explicitly compute the ...

    https://software.intel.com/en-us/articles/fdiag15521

    Oct 8, 2014 ... Product Version: Intel® Fortran Compiler 15.0 and above Cause: When using Intel® Fortran Compiler's optimization options: /O3 /Qopt-report:2 ...

  12. Diagnostic 15532: Loop was not vectorized: compile time constraints ...

    https://software.intel.com/en-us/articles/fdiag15532

    Oct 29, 2014 ... Product Version: Intel(R) Visual Fortran Compiler XE 15.0 or a later version ... not vectorized: compile time constraints prevent loop optimization.

  13. Vectorization with the Intel® Compilers (Part I) | Intel® Developer Zone

    https://software.intel.com/en-us/articles/vectorization-with-the-intel-compilers-part-i

    Apr 23, 2012 ... The high performance Intel® C++/Fortran compilers offer programmers a rich set of machine independent and machine specific optimizations to ...

  14. Intel Vectorization Tools | Intel® Developer Zone

    https://software.intel.com/en-us/articles/intel-vectorization-tools

    May 26, 2015 ... An Introduction to Vectorization with the Intel® Fortran Compiler ... Quick- Reference Guide to optimization with Intel® Compilers version 15, For ...

  15. Further Vectorization Features of the Intel® Compiler

    https://software.intel.com/sites/default/files/managed/80/06/New-Vectorization-Features-of-the-Intel-Compiler-slides.pdf

    Become familiar with the Intel® Compiler's optimization report at ... User Forums for the Intel® C++ and Fortran Compilers for Windows*,. Linux* and OS X*, and ...

  16. VecAnalysis Python* Script for Annotating Intel C++ & Fortran ...

    https://software.intel.com/en-us/articles/vecanalysis-python-script-for-annotating-intelr-compiler-vectorization-report

    Jan 16, 2013 ... ... XE 2013 Update 2 and later) vectorization reports produced at -vec-report7. ... Python* Script for Annotating Intel C++ & Fortran Compilers Vectorization Reports .... about compiler optimizations, see our Optimization Notice.

  17. Vectorization Diagnostics for Intel® Fortran Compiler 14.0 or below ...

    https://software.intel.com/en-us/articles/intel-fortran-vectorization-diagnostics

    Dec 24, 2013 ... Vectorization Diagnostics for Intel® Fortran Compiler 14.0 or below ... information about compiler optimizations, see our Optimization Notice.

  18. Fortran Array Data and Arguments and Vectorization | Intel ...

    https://software.intel.com/en-us/articles/fortran-array-data-and-arguments-and-vectorization

    Sep 6, 2012 ... This document provides examples to various array types in Fortran and their ... In the case where compiler generates unit stride vectorized code, it is ..... This allows compiler to make optimizations for assumed-shaped arrays.

  19. Diagnostic 15543: loop was not vectorized: loop with function call ...

    https://software.intel.com/en-us/articles/fdiag15543

    Jan 7, 2015 ... ... with function call not considered an optimization candidate. (Fortran). Martyn Corden (Intel)'s picture Submitted by Martyn Corden (Intel) on January 7, 2015 .... We can instruct the compiler to vectorize the loop by providing a ...

  20. Diagnostic 15319: loop was not vectorized: novector directive used ...

    https://software.intel.com/en-us/articles/fdiag15319

    Oct 2, 2014 ... When using NOVECTOR directive in code, the vectorization report generated using Intel® Fortran Compiler's optimization and vectorization ...

For more complete information about compiler optimizations, see our Optimization Notice.