ring_mpi():
  FORTRAN77/MPI version
  Measure time required to transmit data
  around a ring of processes
 
  The number of processes is        8
 
  Timings based on     10 experiments
  N double precision values were sent
  in a ring transmission starting and ending at process 0
  and using a total of      8 processes.
 
         N           T min           T ave           T max
 
       100    0.100136E-04    0.974178E-04    0.876665E-03
      1000    0.355244E-04    0.574589E-04    0.234127E-03
     10000    0.214100E-03    0.484824E-03    0.211811E-02
    100000    0.134587E-02    0.218136E-02    0.601387E-02
   1000000    0.865507E-02    0.126188E-01    0.409617E-01
 
ring_mpi():
  Normal end of execution.