An optimized libcint branch for X86 platform
version 6.2.0 2026-10-16
(GPL licensed) qcint is a branch of libcint library. It provides exactly the same APIs as libcint. However, the code is optimized against SSE3, AVX, AVX2 and AVX-512 instructions. On x86_64 platform, qcint can be 5 ~ 50% faster than libcint. Please refer to libcint for more details of the features and installation instructions.
Qiming Sun osirpt.sun@gmail.com