SomajitDey/install_ifort_ifx.md

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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

eginer commented Apr 26, 2023

Many thanks for this very simple and amazingly efficient repo/tuto !
You saved me a lot of troubles !

saeedsltm commented Nov 1, 2023 •

edited

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After installation how to use ifort? ifort command does not exist!

saeedsltm commented Nov 26, 2023

Fixed! maybe restaring kernel is the key point! Now its working, thanks a lot.

leila-etsa commented Nov 28, 2023

Thank you very much, specially for important note number 6 "In ~/.bashrc: source /opt/intel/oneapi/setvars.sh > /dev/null"

The only thing is that your MPI folder does not contain "mpif90" nor "mpiifort" and If you can add them, it will be complete.

I did these steps:

1- I downloaded Intel Fortran compiler and Intel MPI library from Intel site and Installed them.
2- In ~/.bashrc: export I_MPI_F90=ifort, in order that mpif90 uses Ifort not Gfortran.
3- In ~/.bashrc: source .../setvars.sh > /dev/null, in order to define necessary paths and variables. Instead of ... users should write the path of setvars.sh.

( Without doing step 3 and defining only Ifort and MPI path in .bashrc, I was getting this error: "mod_mpi_shared.F90(29): error #5102: Cannot open include file 'mpif.h' INCLUDE 'mpif.h")

superlbr commented May 3, 2024

ifort is now deprecated and will be discontinued late 2024..

Raghavenp commented Nov 30, 2024

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

Azadparvar commented Dec 31, 2024

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

Lars255 commented Jan 23, 2025

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

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.