Synchronized Time Measurements with MPI_Wtime()

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  Hello,

  I got no answer in the thread for server developers. My question was how to get a synchronized cluster time

  Now I try another way:

  I found the function MPI_Wtime() for time measurements. Unfortunately the value MPI_WTIME_IS_GLOBAL is  set to 0, which means time measurement is not synchronized among the nodes.

  Is there a way to change this value to 1?

  According to some documentation I cannot use MPI_Attr_put() to change this value.

   

  Thx for your help!

   

  Tuesday, July 27, 2010 3:49 PM