Vasp 5.4.4 Installation

VASP is proprietary software. You must download vasp.5.4.4.pl2.tgz (or similar 5.4.4 patch version) from the VASP Portal. Once downloaded, extract the files: tar -zxvf vasp.5.4.4.pl2.tgz cd vasp.5.4.4.pl2 Use code with caution. 3. Creating makefile.include

: Intel Fortran ( ifort ) or GNU Fortran ( gfortran ).

make std # Standard version (most common) make gam # Gamma-only version (for specific high-symmetry calculations) make ncl # Non-collinear version (for spin-orbit coupling calculations)

VASP 5.4.4 uses a unique build system: a makefile and architecture-specific makefile.include files. Your job is to create a correct makefile.include for your system.

VASP uses a makefile.include file to define compiler paths and library links. Rather than writing one from scratch, copy a template from the arch/ directory that matches your environment. : cp arch/makefile.include.linux_intel ./makefile.include Use code with caution. vasp 5.4.4 installation

You should see three files: vasp_std , vasp_gam , and vasp_ncl . If you see them, your installation was successful! Step 6: Set Your Environment Variables

: It is common practice to add the line source /opt/intel/oneapi/setvars.sh to your ~/.bashrc to ensure the compilers and libraries are always available.

Now you are ready to compile VASP. The compilation process creates three different versions of VASP. : The standard version for normal calculations.

Directory structure (VASP 5.x)

Upon completion, the compiled executables will be located in subdirectories under /build/ ( build/std/ , build/gam/ , build/ncl/ ) and named vasp .

Run the following command to install all standard open-source prerequisites:

Before compiling VASP, ensure all necessary software, libraries, and a valid license are in place.

MPI module path not set. Solution:

: Run the make command to compile the executable versions. make std : Standard version for k-point sampling. make gam : Gamma-point only version (optimized for speed). make ncl : Non-collinear version (for spin-orbit coupling). make all : Compiles all three. 3. Verification

Before compiling VASP, you must install the required compilers, build tools, and development libraries. 1. Required Packages

: Unpack the tarball and apply any necessary maintenance patches provided by the VASP team.