Arm Compiler for Linux

Arm Compiler for Linux (ACfL) is a suite of tools containing Arm C/C++ Compiler (armclang), Arm Fortran Compiler (armflang), and Arm Performance Libraries (ArmPL). It is tailored to the development of High Performance Computing (HPC) applications.

Arm Compiler for Linux runs on 64-bit Arm machines, it is not a cross-compiler.

You do not require any additional license to use Arm Compiler for Linux.

What Arm-based hardware is supported by Arm Compiler for Linux (ACfL)?

Arm Compiler for Linux supports all 64-bit Arm based server-class hardware .

Ensure you are using a supported Linux distribution .

Confirm you are using an Arm machine by running:

    

        
        
uname -m

    

The output should be:

    

        
        aarch64

        
    

If you see a different result, you are not using an Arm computer running 64-bit Linux.

What pre-requisites do I need to install for ACfL?

If any of the following tools are not already installed by your Linux distribution, you must install them before installing Arm Compiler for Linux. These packages can be installed with the appropriate package manager for your OS:

• SLES: awk environment-modules glibc-devel gzip python3 tar
• RHEL: environment-modules glibc-devel procps python3
• Amazon Linux: environment-modules glibc-devel gzip procps python3 tar
• Ubuntu: environment-modules libc6-dev python3

The minimum supported version for Python is version 3.6.

You must have at least 2 GB of free hard disk space to both download and unpack the Arm Compiler for Linux package. You must also have an additional 6 GB of free space to install the package.

For example:

    

        
        
sudo apt update
sudo apt install -y python-is-python3 libc6-dev

    

You are now ready to install ACfL manually or with Spack .

How do I download and install ACfL using the install script?

Use an Arm recommended script to select, download, and install your preferred ACfL package.

    

        
        
bash <(curl -L https://developer.arm.com/-/cdn-downloads/permalink/Arm-Compiler-for-Linux/Package/install.sh)

    

How do I download and install ACfL manually?

How do I download ACfL with wget?

Download releases from the command line using wget. Install wget if not present.

    

        
        
sudo apt install wget

    

How do I fetch the appropriate ACfL installer?

ACfL installation packages are available to download from Arm Developer . Individual Arm Performance Libraries (ArmPL) packages are also available.

Fetch the ACfL installers:

Ubuntu Linux:

    

        
        
wget  https://developer.arm.com/-/cdn-downloads/permalink/Arm-Compiler-for-Linux/Version_24.10.1/arm-compiler-for-linux_24.10.1_Ubuntu-22.04_aarch64.tar

    

Red Hat Linux:

    

        
        
wget https://developer.arm.com/-/cdn-downloads/permalink/Arm-Compiler-for-Linux/Version_24.10.1/arm-compiler-for-linux_24.10.1_RHEL-9_aarch64.tar

    

How do I install ACfL?

To install Arm Compiler for Linux on your 64-bit Linux Arm machine extract the package and run the installation script.

Each command sequence includes accepting the license agreement to automate the installation and installing Environment Modules.

Ubuntu Linux:

    

        
        
sudo -E apt-get -y install environment-modules python3 libc6-dev
tar -xvf arm-compiler-for-linux_24.10.1_Ubuntu-22.04_aarch64.tar
cd ./arm-compiler-for-linux_24.10.1_Ubuntu-22.04
sudo ./arm-compiler-for-linux_24.10.1_Ubuntu-22.04.sh --accept

    

Red Hat Linux:

    

        
        
sudo yum -y install environment-modules python3 glibc-devel
tar -xvf arm-compiler-for-linux_24.10.1_RHEL-9_aarch64.tar
cd ./arm-compiler-for-linux_24.10.1_RHEL-9
sudo ./arm-compiler-for-linux_24.10.1_RHEL-9.sh --accept

    

How do I download and install ACfL using System Packages?

How do I install ACfL on Ubuntu Linux 20.04 and 22.04?

Arm Compiler for Linux is available to install with the Ubuntu system package manager apt command.

How do I set up the ACfL package repository?

Add the ACfL apt package repository to your system. These instructions apply for Ubuntu 22.04. You can check the available versions for other releases.

After that, the ACfL Ubuntu package repository is now ready to use. Run the commands below to install the dependencies needed.

    

        
        
sudo apt update
sudo apt install -y wget gnupg gpg environment-modules python3 libc6-dev
wget -qO - https://developer.arm.com/packages/ACfL%3AUbuntu-22/jammy/Release.key | sudo tee /etc/apt/trusted.gpg.d/developer-arm-com.asc
echo "deb https://developer.arm.com/packages/ACfL%3AUbuntu-22/jammy/ ./" | sudo tee /etc/apt/sources.list.d/developer-arm-com.list
sudo apt update

    

Install Arm Compiler for Linux with:

    

        
        
sudo apt install acfl -y

    

How do I install ACfL on Amazon Linux 2023?

Arm Compiler for Linux is available to install with either the dnf or yum system package manager.

How do I install ACfL from the Amazon Linux 2023 package repository?

Install ACfL and prerequisites from the Amazon Linux 2023 rpm package repository with dnf:

    

        
        
sudo dnf update -y
sudo dnf -y install 'dnf-command(config-manager)' procps psmisc make environment-modules
sudo dnf config-manager addrepo --from-repofile=https://developer.arm.com/packages/ACfL%3AAmazonLinux-2023/latest/ACfL%3AAmazonLinux-2023.repo
sudo dnf -y install acfl

    

Or using the equivalent yum commands:

    

        
        
sudo yum update -y
sudo yum -y install 'dnf-command(config-manager)' procps psmisc make environment-modules
sudo yum config-manager addrepo --from-repofile=https://developer.arm.com/packages/ACfL%3AAmazonLinux-2023/latest/ACfL%3AAmazonLinux-2023.repo
sudo yum -y install acfl

    

The ACfL tools are now ready to use.

How do I install ACfL on Red Hat Enterprise Linux (RHEL) 9?

Arm Compiler for Linux is available to install with either the dnf or yum system package manager.

How do I install ACfL from the RHEL 9 package repository?

Install ACfL and prerequisites from the RHEL 9 rpm package repository with dnf:

    

        
        
sudo dnf update -y
sudo dnf -y install 'dnf-command(config-manager)' procps psmisc make environment-modules
sudo dnf config-manager addrepo --from-repofile=https://developer.arm.com/packages/ACfL%3ARHEL-9/standard/ACfL%3ARHEL-9.repo
sudo dnf -y install acfl

    

Or using the equivalent yum commands:

    

        
        
sudo yum update -y
sudo yum -y install 'dnf-command(config-manager)' procps psmisc make environment-modules
sudo yum config-manager addrepo --from-repofile=https://developer.arm.com/packages/ACfL%3ARHEL-9/standard/ACfL%3ARHEL-9.repo
sudo yum -y install acfl

    

The ACfL tools are now ready to use.

How do I set up the environment for ACfL?

Arm Compiler for Linux uses environment modules to dynamically modify your user environment. Refer to the Environment Modules documentation for more information.

Set up the environment, for example, in your .bashrc and add module files. Then, list the available modules:

Ubuntu Linux:

    

        
        
echo ". /usr/share/modules/init/bash" >> $HOME/.bashrc
echo "module use /opt/arm/modulefiles" >> $HOME/.bashrc
source $HOME/.bashrc
module avail

    

Red Hat or Amazon Linux:

    

        
        
echo ". /usr/share/Modules/init/bash" >> $HOME/.bashrc
echo "module use /opt/arm/modulefiles" >> $HOME/.bashrc
source $HOME/.bashrc
module avail

    

To configure Arm Compiler for Linux:

    

        
        
module load acfl/24.10.1

    

To configure GCC:

    

        
        
module load gnu/14.2.0

    

ACfL is now ready to use .

How do I download and install ACfL with Spack?

Arm Compiler for Linux is available with the Spack package manager.

See the Arm Compiler for Linux and Arm PL now available in Spack blog for full details.

How do I set up Spack for ACfL?

Clone the Spack repository and add bin directory to the path:

    

        
        
git clone -c feature.manyFiles=true https://github.com/spack/spack.git
export PATH=/home/ubuntu/spack/bin:$PATH

    

Set up shell support:

    

        
        
. /home/ubuntu/spack/share/spack/setup-env.sh

    

Spack is now ready to use.

How do I install ACfL using Spack?

Download and install Arm Compiler for Linux with:

    

        
        
spack install acfl

    

If you wish to install just the Arm Performance Libraries, use:

    

        
        
spack install armpl-gcc

    

How do I set up the environment for ACfL using Spack?

Use the commands below to set up the environment:

    

        
        
spack load acfl
spack compiler find

    

ACfL is now ready to use .

How do I get started with the Arm C/C++ compiler?

To get started with the Arm C/C++ Compiler and compile a simple application follow the steps below.

Check that the correct compiler version is being used:

    

        
        
armclang --version

    

Create a text file named hello.c with the contents below.

    

        
        
#include <stdio.h>

int main()
{
    printf("Hello, C World!\n");
    return 0;
}

    

Build the application with:

    

        
        
armclang hello.c -o hello

    

Run the application with:

    

        
        
./hello

    

The program will output the string specified.

    

        
        Hello, C World!

        
    

How do I get started with the Arm Fortran compiler?

To get started with the Arm Fortran Compiler and compile a simple application follow the steps below.

Check that the correct compiler version is being used:

    

        
        
armflang --version

    

Create a text file named hello.f90 with the contents below.

    

        
        
program hello
  ! This is a comment line; it is ignored by the compiler
  print *, 'Hello, Fortran World!'
end program hello

    

Build the application with:

    

        
        
armflang hello.f90 -o hello

    

Run the application with:

    

        
        
./hello

    

The program will output the string specified.

    

        
        Hello, Fortran World!

        
    

How do I get started with Arm Performance Libraries?

To get started with the Arm Performance Libraries and learn how to select the optimal library for your system, follow the Get started with Arm Performance Libraries guide.