out_nd

 Performance counter stats for './pr_recip -g 25 -n 3':

        621,786.08 msec task-clock                #   21.747 CPUs utilized          
             1,452      context-switches          #    0.002 K/sec                  
                24      cpu-migrations            #    0.000 K/sec                  
         5,138,391      page-faults               #    0.008 M/sec                  
 1,883,257,113,552      cycles                    #    3.029 GHz                    
 1,101,683,477,253      instructions              #    0.58  insn per cycle         
   175,833,038,394      branches                  #  282.787 M/sec                  
    16,977,795,703      branch-misses             #    9.66% of all branches        

      28.591494171 seconds time elapsed

     607.278022000 seconds user
      14.542205000 seconds sys