Her breath caught. “How?”
She was running VASP—the Vienna Ab initio Simulation Package—version 5.4.2. It was a glorious, powerful fortress of Fortran code, but it had a known bug in its DFT-D3 dispersion correction when handling heavy alkalis. A bug that skewed lithium data by exactly 15 millielectronvolts. A tiny, maddening, paper-ruining error.
She looked at the file size: 47.2 MB.
gunzip patch.5.4.4.16052018.gz patch -p0 < patch.5.4.4.16052018 Use code with caution. Copied to clipboard 4. Configuring the Build
N E dE d eps ncg rms rms(c) DAV: 1 0.523293482179E+04 0.12345E+03 -0.54321E+02 256 0.923E+01 DAV: 2 0.512345678901E+04 -0.10948E+03 -0.43210E+01 320 0.234E+01
If you are working in computational materials science, you have likely encountered the vasp.5.4.4.tar.gz archive. This version remains a reliable workhorse for Density Functional Theory (DFT) calculations. However, since VASP is , getting it running requires more than just a git clone .