Hello Barry,

Thanks for offering to look at this.

I configured a different version that does not have the debugger and the results are a lot faster but the efficiency is still similar.  Below you'll see the results.  

n Tp  Efficiency
-------------------------------------
1 162 1
2 110 0.74
4 47 0.86
8 24 0.84
16 12 0.84
32 6 0.84

I'm also including the output of the log_summary for n =1 and 2.  

As I said before, this is an SMP machine so I would expect it to be better than the typical cluster.  That being said I am still learning how this works.

I am very happy that I managed to get some encouraging results in a day.  

Cheers, Francis