bench_sgi_28_o2

SGI Origin

Machine Description


					Model Number	Origin
					Number of Processors	28
					Processor Type	R12000 @ 400 MHz
					Operating System	IRIX64, Rel. 6.5

Problem and Results

Date Started	06/15/2000	06/13/2000	06/14/2000
Code Used	Example 11	Example 11	Example 11
Number of Equations	15,000	50,000	100,000
Number of Vectors	1	1	1
Matrix Sparsity	Full	Full	Full
Matrix Symmetry	Nonsymmetric with Pivoting	Nonsymmetric with Pivoting	Nonsymmetric with Pivoting
Data Type	16-byte Complex	16-byte Complex	16-byte Complex
Memory for FMS(Gbytes)	8	7	7
CPU Time (Day::Hr:Min:Sec)	3:47:06	5::14:05:13	44::03:28:25
Wall Time (Day::Hr:Min:Sec)	11:07	5:13:33	1::15:03:57
I/O Wait Time (Hr:Min:Sec)	Incore	1:58	5:14
Megaflops per Processor	660	690	706
Overall Megaflops	13,503	17,718	18,961
Parellel Speedup	20.44 out of 28	25.66 out of 28	27.12 out of 28

NOTES:

CPU Time is the total amount of User and System time used by all processors.

Wall Time is the elapsed time measured on a dedicated machine. This includes the time spent processing and any time spent waiting for I/O to complete.

I/O Wait Time is the total time spent waiting for I/O to complete that is not overlapped by asynchronous I/O.

Megaflops per Processor is the theoretical number of floating point operations performed, divided by the CPU time.

Overall Megaflops is the total number of floating point operations performed, divided by the Wall Time.

Parallel Speedup is overall increase in performance due to parallel processing.

Copyright © 2000 Multipath Corporation