FX-9370, x86open64, mpich2
On single processor
		User time		System time		  Total
np=1		 3803.676 		 1.637s 	 	1:03:25.94		 99.9%
np=2		 4672.951		 3.148s			  38:58.46 		199.9%
np=3		 5595.148		 4.990s			  31:07.05 		299.9%
np=4		 6830.864		 7.323s			  28:29.88 		399.9%
np=8	 	13543.150 		20.488s			  28:16.57 		799.4%

On 2 processors, Gbit ethernet interface
np=8 (4+4)	 5176.684 		394.380 		  23:13.31 		399.8%
np=16(8+8)       9969.056 		937.942 		  22:44.71 		799.2%