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Benchmarks

Machine Description

SUNFIRE 6800

Machine Type

Sun Fire 6800

Number of Processors

24 UltraSPARC 3

Processor Speed (MHz)

750

Memory Installed (Gbytes)

48

Memory Used by FMS (Gbytes)

12

Operating System

SunOS Release 5.8

Problem Description

Code Used

FMS Example 11

Matrix Sparsity

Full

Matrix Symmetry

Nonsymmetric with Pivoting

Data Type

16 Byte Complex

Number of Equations

Various

Number of Vectors

1

Results

Date Started

3/12/2001

3/12/2001

3/12/2001

Number of Equations

15,000

50,000

100,000

Matrix Storage Size (Gbytes)

4.09

43.60

162.26

File Location

Memory

Disk

Disk

Factoring CPU Time (Day::Hr:Min:Sec)

2:04:46

3::01:06:01

24::09:25:37

Factoring Wall Time (Day::Hr:Min:Sec)

6:32

3:26:05

1::04:55:41

I/O Wait Time (Hr:Min:Sec)

0

10:13

1:15:43

Megaflops per Processor

1,202

1,266

1,265

Overall Megaflops

22,959

26,959

25,606

Parellel Speedup

20.2 out of 24

21.2 out of 24

20.4 out of 24

NOTES:

  1. CPU Time is the total amount of User and System time used by all processors.
  2. 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.
  3. I/O Wait Time is the total time spent waiting for I/O to complete that is not overlapped by asynchronous I/O. This is included in Wall Time.
  4. Megaflops per Processor is the theoretical number of floating point operations performed, divided by the CPU time.
  5. Overall Megaflops is the theoretical number of floating point operations performed, divided by the Wall Time.
  6. Parallel Speedup is overall increase in performance due to parallel processing.


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