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Intel® OpenMP C++/Fortran Compiler for Hyper-Threading Technology

by Xinmin Tian, Aart Bik, Milind Girkar, Paul Grey, Hideki Saito, and Ernesto SuSoftware Solutions Group, Intel Corporation

Authored by Hideki Ido (Intel) Last updated on 12/31/2018 - 14:00
Article

internal threshold was exceeded

In very large, complex functions, loops preceded by OpenMP directives may not be threaded. Compiler may emit the warning remark: "An internal threshold was exceeded: loops may not be vectorized or parallelized. Try to reduce routine size."
Authored by Martyn Corden (Intel) Last updated on 12/26/2018 - 13:11
Article

OMP: Error #15: Initializing libguide.lib, but found libguide40.dll already initialized.

Linker error generated when different parts of a program try to link both the static and dynamic versions of the OpenMP runtime. The solution is to expilcitly call out either a dynamic or static link.
Authored by Last updated on 12/26/2018 - 11:33
Article

How to use Intel® Compiler OpenMP* Compatibility Libraries on Windows*

The Intel® Compilers provide an OpenMP* runtime library to enable mixed Microsoft Visual C++* and Intel Compiler builds that both use OpenMP*.
Authored by admin Last updated on 05/25/2018 - 15:30
Article

Intel® Professional Edition Compilers 11.1 Fixes List

This page lists fixes that have been made in Intel Professional Edition Compilers 11.1.
Authored by Elizabeth S (Intel) Last updated on 05/25/2018 - 15:30
Article

Automatic Parallelization with Intel® Compilers

With automatic parallelization, the compiler detects loops that can be safely and efficiently executed in parallel and generates multithreaded code.
Authored by admin Last updated on 07/04/2019 - 21:33
Article

Using KMP_AFFINITY to create OpenMP* thread mapping to OS proc IDs

This article explains how to create your own OpenMP* thread mapping to OS proc IDs with Intel® C/C++ and Fortran compiler, by setting environment variable KMP_AFFINITY. It also provides some thread affinity demo results on when use different settings.
Authored by Last updated on 05/25/2018 - 15:30
Article

Recommended Settings for Calling Intel® Math Kernel Library Routines from Multi-Threaded Applications

Recommended settings for calling Intel MKL routines from multi-threaded1 applications
Authored by Konstantin Arturov (Intel) Last updated on 04/12/2019 - 11:55
Article

Don't Use the OpenMP* THREADPRIVATE 'Compatibility' Option when Everything is Compiled by Intel

The Intel C++ and Fortran compilers for Windows* and Linux* provide 'legacy' and 'compatibility' implementations of the OpenMP THREADPRIVATE directive. The 'compatibility' option should not be used when everything is compiled by Intel compilers.
Authored by Kenneth Craft (Intel) Last updated on 07/08/2019 - 15:12