omp and theadpool should be tested separately.

  the test is evaluated on fugaku A64FX cpu, which has 4 numa domains, and core id is from 12 to 59.

  
  //**************************************************************
  // test omp
  // compile command  mpic++ -O3 main.cpp -o main -pthread -fopenmp
  //**************************************************************
  threadpool.omp_thread();

  //**************************************************************
  // test threadpool
  // compile command  mpic++ -O3 main.cpp -o main -pthread
  //**************************************************************
  threadpool.start_pthread();
  threadpool.control_pthread();