Setting thread affinity on SMT or HT enabled systems for better performance For SMT (Simultaneou Mutli Threading) or HT (Hyper Threading) enabled systems, for. e.g: "Nehalem" based machines to get best MKL performance we recommend you to set thread affinity. Intel® Math Kernel Library SMT HT ON KMP_AFFINITY Thread Affinity Optimization Read more about Setting thread affinity on SMT or HT enabled systems for better performanceLog in to post comments