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SomajitDey/install_ifort_ifx.md

Last active April 8, 2024 08:21
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Install INTEL Fortran compiler ifort for free on Ubuntu(WSL2). Also install MKL. OpenMP and OpenMPI runtime for coarray support.
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install_ifort_ifx.md

My route:

  1. 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
  2. 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"
  3. sudo apt update
  4. sudo apt install intel-oneapi-compiler-fortran
  5. Optional: sudo apt install intel-oneapi-mkl
  6. In ~/.bashrc: source /opt/intel/oneapi/setvars.sh > /dev/null
@eginer
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eginer commented Apr 26, 2023

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

@saeedsltm
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saeedsltm commented Nov 1, 2023 •
edited

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

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

@leila-etsa
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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")

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