The processor option of our workstation is Intel Xeon X5550 2.ttGHz/8MB. It has 4 cpus and each cpu has 2 cores. In my code, I have set OMP_NUM_THREADS=8 and MKL_NUM_THREADS=8 by the commands omp_set_num_threads (8) and mkl_set_num_threads (8). But the mkl part, where the DSS and LAPACK are used to factorize some sparse and full matrices, only can call 4 threads. While the other c++ part runs with 8 threads. How can I call 8 threads at the mkl part? Thanks so much!