| Directory / File | Purpose | | :--- | :--- | | src/ | The Fortran source code ( .F and .f files). This is the heart of VASP. | | makefile.include | The master configuration file. You must edit this for your specific HPC environment. | | build/ | A newer structure (introduced around 5.4.4) for out-of-source builds to keep source tree clean. | | arch/ | Example makefile templates for various compilers (Intel, GNU, NEC, Cray). | | lib/ | Pre-compiled libraries (e.g., for FFTW, LAPACK). | | testsuite/ | A suite of input files (INCAR, POSCAR, POTCAR, KPOINTS) to verify your build is correct. |
A: No. Parallel I/O was unstable in 5.4.4. Use 6.x for large-scale I/O. vasp.5.4.4.tar.gz
| Error Message | Probable Cause | Solution | | :--- | :--- | :--- | | Fatal error: Cannot open file 'prec.inc' | Missing preprocessing step. | Run make veryclean; make again. Ensure -DMPI is set. | | undefined reference to 'cheev_' | LAPACK/BLAS not linked correctly. | Add -mkl (Intel) or -lblas -llapack (GNU) to LLIBS . | | forrtl: severe (174): SIGSEGV | Stack size too small. | Set ulimit -s unlimited in your job script. | | Error: Type mismatch in argument at compilation | Old compiler incompatibility. | Use ifort version ≥ 18, or add -fallow-argument-mismatch for GCC≥10. | | Directory / File | Purpose | |
cd testsuite/ make test This runs over 50 short calculations. Look for PASS results. Create a directory with testsuite/Si/ . Run mpirun -np 4 vasp_std . Compare your total energy and forces with the reference OUTCAR provided. For version 5.4.4, a silicon primitive cell should yield exactly -10.66142203 eV/atom . Part 7: Common Troubleshooting for vasp.5.4.4.tar.gz Even with the mature 5.4.4, errors are common. Here is a log of frequent issues. You must edit this for your specific HPC environment
While newer features like machine learning and GPU acceleration are tempting, the reliability of VASP 5.4.4 means it will continue to run on university clusters and supercomputers for years to come. Master the compilation and use of this tarball, and you master the backbone of modern DFT simulation. Q: Can I use vasp.5.4.4.tar.gz on macOS? A: Only with significant effort using GNU compilers and a non-standard MPI stack. It is not recommended.