Chapter 1: Installation Prerequisites for Linux

This document describes the steps necessary to correctly install and configure all Ansys, Inc. products
on Linux platforms for Release 2024 R1. These products include:

• Electronics

– Ansys Icepak (includes Ansys CFD-Post)

• Fluids

– Ansys Dynamic Reporting

– Ansys CFD-Post only

– Ansys CFX (includes Ansys CFD-Post)

– Ansys Chemkin

– Ansys EnSight

– Ansys FENSAP-ICE

– Ansys Fluent (includes Ansys CFD-Post)

– Ansys Forte

– Ansys ICEM CFD

– Ansys Model Fuel Library (Encrypted)

– Ansys Polyflow (includes Ansys CFD-Post)

– Ansys Reaction Workbench

– Ansys TurboGrid

• Ansys Geometry Interfaces

– ACIS

– CATIA, Version 5

– NX

– Parasolid

• Optical

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Installation Prerequisites for Linux

– Ansys Speos HPC

• PIDO (Optimization)

– Ansys optiSLang

• Platform

– DCS (Distributed Compute Services

– Remote Solve Manager Standalone Services

• Structures

– Ansys Additive

– Ansys Aqwa

– Ansys Autodyn

– Ansys LS-DYNA

– Ansys Customization Files for User-Programmable Features

– Ansys Mechanical Products (includes Mechanical APDL, Mechanical and Ansys Composite PrepPost,
where supported)

– Ansys Motion

– Ansys Sherlock

Notes

Not all products may be available on all Linux platforms. See the remainder of this document for
detailed information on which products are available on which platforms.

At Release 2024 R1, Ansys BladeGen, Vista CCD, Vista CPD, Vista RTD, and Vista AFD are not supported
on Linux platforms.

Ansys Workbench is installed by default as product components to most Ansys, Inc. products. Ansys
Workbench is not installed as part of the products under Ansys Additional Tools. Ansys Workbench in-
cludes the following applications:

• DesignModeler

• Design Exploration

• Meshing

• Remote Solve Manager

• Fluent Meshing

• EKM Client

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2 information of ANSYS, Inc. and its subsidiaries and affiliates.
 System Prerequisites

Important Notice
If you wish to run multiple releases of Ansys, Inc. software, you MUST install them chronologically (that
is, Release 2023 R2 followed by Release 2024 R1). If you install an earlier release after installing Release
2024 R1, you will encounter licensing issues that may prevent you from running any products/releases.
If you need to install an earlier release after you have already installed Release 2024 R1, you MUST un-
install Release 2024 R1, then re-install the releases in order.

1.1. System Prerequisites

Ansys, Inc. Release 2024 R1 products are supported on the Linux platforms and operating system levels
listed in the following tables. Patches listed may be superseded by newer versions; see your vendor for
the most current version. See the individual Platform Certification Specifics in this guide for more in-
formation on specific platform requirements. For up-to-date information on hardware platforms or op-
erating systems that have been certified, go to the Platform Support section of the Ansys Website.

Table 1.1: Supported Linux Platforms

Platform Processor Operating System Platform Availability

architecture
(directory name)
Linux x64 EM64T/Opteron 64 Red Hat Enterprise Linux 7.8 - linx64 Download
7.9, Red Hat Enterprise Linux / USB
8.4 - 8.8 , SUSE Linux Enterprise
Server and Desktop 12 SP5,
SUSE Linux Enterprise Server
and Desktop 15 SP2 - SP4,
CentOS 7.8 - 7.9, Ubuntu LTS
Desktop and Server 20.04 &
22.04
For detailed and current support information, see the Platform Support section of the Ansys Website.

Supported Platforms for High Performance Computing

See the discussions on Configuring Distributed Ansys and Configuring Ansys CFX Parallel for detailed
information on supported platforms for distributed computing.

Supported Products By Platform

For a complete list of products supported by each platform, see the Platform Support by Applic-
ation PDF on the Platform Support section of the Ansys Website.

1.1.1. CAD Support

The following CAD and auxiliary programs are supported on the indicated products and platforms.
Products are:

A = Mechanical APDL
W = Ansys Workbench

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Installation Prerequisites for Linux

I = Ansys ICEM CFD (standalone and Ansys Workbench Readers)

Table 1.2: CAD Support by Platform

Linux x64
CATIA 4.2.4 A, I
CATIA V5 R2022 W, I
CATIA V6 R2023.x W, I
Parasolid 35.1 A, W, I
ACIS 2022 A, W, I 1
NX 22065, 2212 5, 2306 5 A, W, I
STEP AP203, AP214, AP 242 A, W, I
IGES 4.0, 5.2, 5.3 A 2, W, I 3
GEMS I
Rhinoceros I4

1. For Ansys ICEM CFD standalone, ACIS 18.0.1 is the supported version for all platforms.

2. MAPDL supports 5.1 by default, but 5.2 is also supported if the IOPTN command is used.

3. IGES Versions 4.0, 5.2, and 5.3 are supported.

4. Support limited to Rhinoceros 3 and earlier.

5. Support limited to SuSE Linux Enterprise 15.

1.2. Disk Space and Memory Requirements

You will need the disk space shown here for each product for installation and proper functioning. The
numbers listed here are the maximum amount of disk space you will need. Depending on the options
selected for each product and shared product features, you may require less disk space when installing
multiple products.

Product Disk Space (GB)

Ansys Additive 37.0
Ansys Aqwa 22.0
Ansys Autodyn 22.0
Ansys CFD Post only 22.7
Ansys CFX 23.1
Ansys Chemkin 24.9
Ansys Customization Files for User-Programmable Features 22.8
Distributed Computing Services 10.5
Ansys Dynamic Reporting 24.3
Ansys EnSight 25.8

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 Requirements for the GPU Accelerator in Mechanical APDL

Product Disk Space (GB)

Ansys FENSAP-ICE 23.2
Ansys Fluent 36.9
Ansys Forte 28.1
Ansys Geometry Interfaces 12.5
Ansys ICEM CFD 22.5
Ansys Icepak 31.6
Ansys LS-DYNA 23.2
Ansys Mechanical Products 36.0
Ansys Model Fuel Library (Encrypted) 24.9
Ansys Motion 24.4
Ansys optiSLang 18.1
Ansys Polyflow 35.3
Ansys Reaction Workbench 24.9
Ansys Remote Solve Manager 15.7
Ansys Sherlock 33.8
Ansys Speos HPC 9.6
Ansys TurboGrid 23.0
Disk space required to install all products: 65.6

Memory Requirements

You must have a minimum of 8 GB of memory to run product installations, 16 or 32 GB of memory

is recommended.

1.3. Requirements for the GPU Accelerator in Mechanical APDL

Your system must meet the following requirements to use the GPU accelerator capability in Mechanical
APDL. For information on the most recently tested GPU cards, see the GPU Accelerator Capabilities
PDF on the Platform Support section of the Ansys Website.

• The machine(s) being used for the simulation must contain at least one GPU card. The following cards
are recommended:

AMD InstinctTM MI100, MI210, MI250, MI250x

NVIDIA H100
NVIDIA A10, A16, A30, A40, A100
NVIDIA RTX A4000, A5000, A6000
NVIDIA Tesla Series (any model)
NVIDIA Quadro RTX 6000, RTX 8000
NVIDIA Quadro GV100
NVIDIA Quadro GP100

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Installation Prerequisites for Linux

• When using the sparse solver or eigensolvers based on the sparse direct solver (for example, Block
Lanczos or subspace), only GPU devices with significant double precision performance (FP64) are re-
commended in order to achieve optimal performance. These include the following models:

AMD InstinctTM MI100, MI210, MI250, MI250x

NVIDIA H100
NVIDIA A30, A100
NVIDIA Tesla Series P100
NVIDIA Tesla Series V100
NVIDIA Quadro GV100
NVIDIA Quadro GP100

• GPU devices with at least 16GB of on-card memory are recommended in order to achieve meaningful
acceleration for most simulations in which the GPU card can be used.

• For NVIDIA GPU cards, the driver version must be 525.60.13 or newer.

• For AMD GPU cards, the following AMD link lists their

To install the AMD driver, you must perform the three-step procedure summarized below and described
in detail with specific Linux commands for different operating systems on the AMD page: .

1. Download the "amdgpu-install" script to your system using the appropriate commands for
your operating system. Note that the version of amdgpu-install must come from the ROCm
5.7.0 page, and you only need to download the installer script (the full ROCm package is not
needed).

2. Install the "kernel-mode driver" with the following command

sudo amdgpu-install --usecase=dkms

3. Install the “libdrm-amdgpu” library to your operating system using the appropriate commands.

• To utilize a GPU device that is not on the recommended list of cards, set the following environment
variable:

ANSGPU_OVERRIDE=1

This is most beneficial when you wish to run on newer GPUs that were not available at the time of
release of this version of the Ansys program. If you choose to use this environment variable, you
should ensure that the GPU device that you wish to use is sufficiently powerful, in terms of both
double-precision compute power and on-card memory, to achieve meaningful acceleration for your
simulation. Using this environment variable with an underpowered CPU may actually decelerate your
simulation.

1.4. Additional Hardware and Software Requirements

• Based upon your platform version and installed products you may need to install additional Linux
libraries and packages. For a list of libraries and packages by product, see Installation Troubleshooting
- Mechanical APDL (p. ?).

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 Additional Hardware and Software Requirements

• Intel 64 / AMD64 system with a supported operating system version installed

• 8 GB of RAM

• 128 GB free on the hard drive is recommended

• A current default web browser must be installed to view the Ansys internet-based help document-
ation.

For a complete list of supported browsers, see the Browser Support PDF on the Platform Support
section of the Ansys Website.

Note that Google Chrome does not support the Linux platforms that Ansys supports.

For a local copy of the product documentation on your system, download an installable version from
the Ansys Download Center. Instructions for installing the Local Help are included with the download
package.

• TCP/IP for the license manager (see the Ansys Licensing Guide for more information on TCP/IP)

• Approximately twice as much swap space as memory. The amount of memory swap space on the
system may limit the size of the model that can be created and/or solved.

• Discrete graphics card with the latest drivers and compatible with the supported operating systems.
For full functionality, use of a recent NVIDIA Quadro or AMD FirePro card with at least 1 GB of discrete
video memory and supporting OpenGL version 4.5 or above. Intel Iris Pro Integrated graphics has
also been used successfully.

For information on the most recently tested graphics cards, see the Graphics Cards TestedPDF on
the Platform Support section of the Ansys Website.

Note:

– Vendor Legacy Support: To be compatible, legacy GL 4.5 compliant cards

should still be within the official legacy support period of their respective
graphics vendor, and must still be receiving regular driver updates. Visit the
appropriate vendor websites to review legacy hardware lists.

• A minimum screen resolution of: 1024 x 768 (4:3 aspect ratio), 1366 x 768 (16:9 aspect ratio) or 1280
x 800 (16:10 aspect ratio) with minimum 24 bit color. A higher screen resolution such as 1920x1080
(16:9) or 1920x1200 (16:10) is strongly recommended for most applications.

Note:

– A number of cosmetic display issues have been reported when running the install-
ation program on Linux platforms using AMD graphics cards. These issues do not
affect the installation functionality.

– Ultra High Definition (4K) Graphics Cards: Use of Ultra High Definition (4K)
graphics cards may cause a number of cosmetic display issues (including enlarged

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Installation Prerequisites for Linux

or reduced text and incorrect positioning of option labels). These issues do not affect
the functionality of the installation program.

• X11, OpenGL graphics libraries

• Mesa-libGL (OpenGL) is required to run data-integrated Ansys Workbench applications such as

Mechanical.

• For most applications, a three-button mouse is required to access all available functionality.

• PDF reader software is required to read the installation guides and other user documentation.

• Running Ansys Fluent or Ansys CFX on Cray systems requires a minimum of Cray Linux Environment
6.0 update 03 (based on SUSE Linux Enterprise Server 12).

• For Ansys CFX on Cray systems, in order to use the command-line application cfx5mondata, you
must ensure that library libsmime3.so is installed.

1.4.1. Speos HPC Software Requirements

Speos software offers the ability to run simulation jobs on a Linux cluster using the GPU Cores of the
machines. Speos HPC requires a minimum NVIDIA Quadro P6000 graphic adapter with a NVIDIA driver
535.104.05.

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