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Benchmarks

Machine Description

HP 9000 N-Class

Machine Type

HP 9000 N-Class

Number of Processors

8

Processor Type and Speed

PA-8500 @440MHz

Memory Installed (Gbytes)

16

Memory Used by FMS (Gbytes)

8

Operating System

HP-UX Version B.11.00

Problem Description

Code Used

FMS Example 11

Matrix Sparsity

Full

Matrix Symmetry

Symmetric

Data Type

16 Byte Complex

Number of Equations

Various

Number of Vectors

1

Results

Date Started

12/22/99

12/22/99

Number of Equations

50,000

100,000

Matrix Storage Size (Gbytes)

22.59

85.32

Factoring CPU Time (Hr:Min:Sec)

38:21:13

296:41:00

Factoring Wall Time (Hr:Min:Sec)

5:11:29

38:49:43

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

0:00:29

0:01:55

Megaflops per Processor

1,207

1,248

Overall Megaflops

8,918

9,538

Parellel Speedup

7.39 out of 8

7.64 out of 8

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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