grid process   1  1
grid size = (  8  6)
process grid size = (  2  2)
 
initial values:
 
      0.00      0.00      0.00      0.00      0.00
      0.00    101.00    102.00    103.00      0.00
      0.00    201.00    202.00    203.00      0.00
      0.00    301.00    302.00    303.00      0.00
      0.00    401.00    402.00    403.00      0.00
      0.00      0.00      0.00      0.00      0.00
 
values after boundary exchange:
 
      0.00      0.00      0.00      0.00      0.00
      0.00    101.00    102.00    103.00    104.00
      0.00    201.00    202.00    203.00    204.00
      0.00    301.00    302.00    303.00    304.00
      0.00    401.00    402.00    403.00    404.00
      0.00    501.00    502.00    503.00    504.00
 
