Vasp 5.4.4 Installation Direct

Intel MKL or a combination of BLAS, LAPACK, and ScaLAPACK. FFT Library: FFTW3 (often included in Intel MKL). Step 1: Extracting the Source Code

A VASP 5.4.4 installation is never truly "finished". As you switch clusters, compilers, or libraries, revisit makefile.include . Treat it as a configuration document. Automate it with a script that checks for $MKLROOT , $MPIROOT , and writes the appropriate flags.

VASP is proprietary software. You must have a valid license to download the source code from the VASP Portal Compiler Requirements: Fortran-based . It typically requires Intel Compilers (ifort) or GNU Compilers (gfortran). Necessary Libraries: OpenMPI or Intel MPI for parallel execution. Linear Algebra: BLAS, LAPACK, and ScaLAPACK (often provided by FFTW libraries. HDF5 (Optional but recommended): For modern data output handling. VASP - Vienna Ab initio Simulation Package 2. Installation Workflow vasp 5.4.4 installation

Load necessary modules. For example, on many HPC clusters, you might run: module load intel/2023.2.1 intelmpi/2021.9.0 .

Or, with an example SLURM submission script: Intel MKL or a combination of BLAS, LAPACK, and ScaLAPACK

make all

To execute VASP from any directory on your system, add the binary path to your user environment profile ( ~/.bashrc ): As you switch clusters, compilers, or libraries, revisit

command to build the binaries. You can build all versions at once or individually. Purdue University : Builds all three main binaries ( : Builds the standard version for bulk systems. : Builds the Gamma-point only version for large supercells. : Builds the non-collinear version for spin-orbit coupling. Purdue University Knowledge Base: Anvil User Guide: Build your own VASP 5

: Fortran and C compilers (Intel ifort / icx or GNU gfortran / gcc ) MPI Library : For parallel execution (Intel MPI or OpenMPI)

Option B: Configuration for GNU Toolchain (gfortran + OpenMPI + OpenBLAS)

Ensure there are no "not found" errors listed among the shared library dependencies. Step 5: Post-Installation Environment Setup