Build support for the OpenMP (support parallel computing), requires >=sys-devel/gcc-4.2 built with USE="openmp"

Packages describing “openmp” as local USE flag

Package “openmp” Flag Description
sci-libs/blis Use openmp threadding model
sys-devel/clang-runtime Install sys-libs/libomp for -fopenmp support
sci-libs/caffe2 Use OpenMP for parallel code

All packages providing a “openmp” USE flag (105)