Visible to Intel only — GUID: GUID-9105FC6A-7159-4767-879E-D0C97CC99FA2
Visible to Intel only — GUID: GUID-9105FC6A-7159-4767-879E-D0C97CC99FA2
Use Modulefiles with Linux*
There are two methods for configuring your environment in Linux*:
Use modulefiles, as described on this page
Most of the component tool folders contain one or more modulefile scripts that configure the environment variables needed by that component to support development work. Modulefiles are an alternative to using the setvars.sh script to set up the development environment. Because modulefiles do not support arguments, multiple modulefiles are available for oneAPI tools and libraries that support multiple configurations (such as a 32-bit configuration and a 64-bit configuration).
Tmod 3.2.10 (compiler modulefile requires 4.1, see below)
Tcl version 8.4
Lmod version 8.2.10
Test which version is installed on your system using the following command:
module --version
Each modulefile automatically verifies the Tcl version on your system when it runs.
If your modulefile version is not supported, a workaround may be possible. See Using Environment Modules with Intel Development Tools for more details.
As of the oneAPI 2021.4 release you can use the icc modulefile to setup the icc and ifort compilers if you are using version 3.2.10 of the Tcl Environment Modules. A future oneAPI release will resolve the support for the compiler modulefile.
The oneAPI modulefile scripts are located in a modulefiles directory inside each component folder (similar to how the individual vars scripts are located). For example, in a default installation, the ipp modulefiles script(s) are in the /opt/intel/ipp/latest/modulefiles/ directory.
Due to how oneAPI component folders are organized on the disk, it can be difficult to use the oneAPI modulefiles directly where they are installed. Therefore, a special modulefiles-setup.sh script is provided in the oneAPI installation folder to make it easier to work with the oneAPI modulefiles. In a default installation, that setup script is located here: /opt/intel/oneapi/modulefiles-setup.sh
The modulefiles-setup.sh script locates all modulefile scripts that are part of your oneAPI installation and organizes them into a single directory of versioned modulefiles scripts.
Each of these versioned modulefiles scripts is a symlink that points to the modulefiles located by the modulefiles-setup.sh script. Each component folder includes (at minimum) a “latest” version modulefile that will be selected, by default, when loading a modulefile without specifying a version label. If you use the --ignore-latest option when running the modulefiles-setup.sh script, the modulefile with the higest semver version will be loaded if no version is specified by the module_load command.
Creating the modulefiles Directory
Run the modulefiles-setup.sh script.
Running the modulefiles-setup.sh script creates the modulefiles output folder, which is organized like the following example (the precise list of modulefiles depends on your installation). In this example there is one modulefile for configuring the Intel® Advisor environment and two modulefiles for configuring the compiler environment (the compiler modulefile configures the environment for all Intel compilers). If you follow the latest symlinks, they point to the highest version modulefile, per semver rules.
Update your MODULEFILESPATH to include to the modulefiles output folder that was created by the modulefiles-setup.sh script or run the moduleuse <folder_name> command.
Installing the Tcl Modulefiles Environment onto Your System
The instructions below will help you quickly get started with the Environment Modules utility on Ubuntu*. For full details regarding installation and configuration of the module utility, see http://modules.sourceforge.net/.
$ sudo apt update
$ sudo apt install tcl
$ sudo apt install environment-modules
Confirm that the local copy of tclsh is new enough (see the beginning of this page for a list of supported versions):
$ echo 'puts [info patchlevel] ; exit 0' | tclsh
8.6.8
To test the module installation, initialize the module alias.
$ source /usr/share/modules/init/sh
$ module
Source the module alias init script (.../modules/init/sh) in a global or local startup script to ensure the module command is always available. At this point, the system should be ready to use the module command as shown in the following section.
Getting Started with the modulefiles-setup.sh Script
The following example assumes you have:
installed tclsh on to the Linux development system
installed the Environment Modules utility (i.e., module) onto the system
sourced the .../modules/init/sh (or equivalent) module init command
installed the oneAPI toolkits required for your oneAPI development
$ cd <oneapi-root-folder> # cd to the oneapi_root install directory
$ ./modulefiles-setup.sh # run the modulefiles setup script
$ module use modulefiles # use the modulefiles folder created above
$ module avail # will show tbb/X.Y, etc.
$ module load tbb # loads tbb/X.Y module
$ module list # should list the tbb/X.Y module you just loaded
$ module unload tbb # removes tbb/X.Y changes from the environment
$ module list # should no longer list the tbb/X.Y env var module
Before the unload step, use the env command to inspect the environment and look for the changes that were made by the modulefile you loaded. For example, if you loaded the tbb modulefile, the command will show you some of the env changes made by that modulefile (inspect the modulefile to see all of the changes it will make):
$ env | grep -i "intel"
Versioning
The oneAPI toolkit installer uses version folders to allow oneAPI tools and libraries to exist in a side-by-side layout. These versioned component folders are used by the modulefiles-setup.sh script to create the versioned modulefiles. The script organizes the symbolic links it creates in the modulefiles output folder as <modulefile-name>/version, so that each respective modulefile can be referenced by version when using the module command.
$ module avail
---------------- modulefiles -----------------
ipp/1.1 ipp/1.2 compiler/1.0 compiler32/1.0
Multiple modulefiles
A tool or library may provide multiple modulefiles within its modulefiles folder. Each becomes a loadable module. They will be assigned a version per the component folder from which they were extracted.
Understanding How the modulefiles are Written when using oneAPI
Symbolic links are used by the modulefiles-setup.sh script to gather all the available modulefiles into a single modulefiles folder. This means that the actual modulefile scripts are not moved or modified. As a consequence, the ${ModulesCurrentModulefile} variable points to the symlink to each modulefile, not to the actual modulefile located in the respective installation folders. To determine the full path to the actual modulefiles, each modulefile starts with a statement like this:
[ file readlink ${ModulesCurrentModulefile} ]
to get a direct reference to the original modulefile in the product install directory. This is done because the actual install location can be customized and is, therefore, unknown at runtime and must be deduced. For that reason, the actual modulefile cannot be moved outside of the installed location, otherwise it will not be able to locate the absolute path to the library or application that it must configure.
For a better understanding, review the modulefiles included with the installation. Most include comments explaining how they resolve symlink references to a real file, as well as parsing the version number (and version directory). They also include checks to insure that the installed TCL is an appropriate version level.
Use of the module load Command by modulefiles
Several of the modulefiles use the module load command to ensure that any required dependent modules are also loaded. There is no attempt to specify the version of those dependent modulefiles. This means you have the option to load a specific version of a dependent module prior to loading the module that requires that dependent module. If you do not preload a dependent module, the latest available version is loaded.
This is by design because it gives you the flexibility to control the environment. For example, you may have installed an updated version of a library that you want to test against a previous version of the compiler. Perhaps the updated library has a bug fix and you are not interested in changing the version of any other libraries in your build. If the dependent modulefiles were hard-coded to require a specific dependent version of this library, you could not perform such a test.
Additional Resources
For more information about modulefiles, see: