SomajitDey/install_ifort_ifx.md

Last active February 26, 2025 10:02

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Install INTEL Fortran compiler ifort for free on Ubuntu(WSL2). Also install MKL. OpenMP and OpenMPI runtime for coarray support.

Raw

install_ifort_ifx.md

Official Guide
VMagnin's post
NOTE: Make sure to do sudo apt update after adding intel's repositories to apt.
VMagnin's post regarding sourcing /opt/intel/oneapi/setvars.sh
Another useful source

My route:

curl -Lo- https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB | sudo gpg --dearmor -o /usr/share/keyrings/oneapi-archive-keyring.gpg
sudo tee /etc/apt/sources.list.d/oneAPI.list <<< "deb [signed-by=/usr/share/keyrings/oneapi-archive-keyring.gpg] https://apt.repos.intel.com/oneapi all main"
sudo apt update
sudo apt install intel-oneapi-compiler-fortran
Optional: sudo apt install intel-oneapi-mkl
In ~/.bashrc: source /opt/intel/oneapi/setvars.sh > /dev/null

Author

SomajitDey commented Jan 25, 2025

Thanks for your comments and sincere apologies for the delayed response.

@Raghavenp

Unpacking using "dearmor" in Step 1 is taking too long....is it normal?

Nope. I timed that step (i.e. curl piped to gpg). Here are my results:

real    0m1.049s
user    0m0.072s
sys     0m0.018s

@Azadparvar

Hello, when I wrote the first command, I faced that no valid OpenPGP data found. I could not fix it. Can you guide me?

Most probably, your curl failed. I suggest you use the option -f with curl.

@Lars255

Since ifort is deprecated, is this still possible? I tried to do this but the ifort command does not exist...

The installation described in this gist does automatically install the replacement for ifort, viz. ifx. So, simply use ifx command instead of ifort after the installation.