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Version

Module

Available on

2025.0.0

compiler/intel-compilers/2025.0.0

Noctua 1, Noctua 2

2024.2.0

compiler/intel-compilers/2024.2.0

Noctua 1, Noctua 2

2024.0.0

compiler/intel-compilers/2024.0.0

Noctua 1, Noctua 2

2023.2.1

compiler/intel-compilers/2023.2.1

Noctua 1, Noctua 2

2023.1.0

compiler/intel-compilers/2023.1.0

Noctua 1, Noctua 2

2022.2.1

compiler/intel-compilers/2022.2.1

Noctua 1, Noctua 2

2022.1.0

compiler/intel-compilers/2022.1.0

Noctua 1, Noctua 2

2022.0.1

compiler/intel-compilers/2022.0.1

Noctua 1, Noctua 2

2021.4.0

compiler/intel-compilers/2021.4.0

Noctua 1, Noctua 2

2021.2.0

compiler/intel-compilers/2021.2.0

Noctua 2

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If you need support in using this software or example job scipts please contact pc2-support@uni-paderborn.de.

General options for optimization

These general compiler options are valid for Intel C compiler (icx), C++ compiler (icpx) and Fortran compiler (ifx).

-On: control for code optimization

-O0: disable all optimizations (reduce compilation time and useful for debugging)

-O1: enable optimizations for speed and disable some optimizations that increase code size and affect speed

-O2: enable optimizations for speed and vectorization

-O3: perform -O2 optimizations and enable more aggressive loop transformations

-Ofast: set certain aggressive options to improve the speed of your application

-Os: enable -O2 optimizations that do not increase code size

-debug debug-level: enable generation of debugging information

some choices for debug-level are:

none: disable generation of debugging information

minimal: generate line number information for debugging

full: generate complete debugging information

-fp-model fp-semantics: control the semantics of floating-point calculations

some choices for fp-semantics are:

precise: disable optimizations that are not value-safe on floating-point data

fast=1: enable more aggressive optimizations on floating-point data

fast=2: may produce faster and less accurate results

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Special option on Noctua 1

The microarchitecture of Intel Xeon Skylake SP 6148 on Noctua 1 is Skylake SP. The AVX-512 instructions are supported. The following compiler options can be used to generate optimized binary executable.

-xCORE-AVX512 -qopt-zmm-usage=high

Special option on Noctua 2

The microarchitecture of AMD Milan 7763 on Noctua 2 is Zen 3. The AVX-2 instructions are supported. The following compiler options can be used to generate optimized binary executable.

-march=core-avx2

or

-axCORE-AVX2