3-D Industrial Code Results

This restricted access code used in industry is a three dimensional, transient laminar and turbulent CFD code. The predictions are made on a structured mesh and the solutions are obtained using a two-colour ADI solver. The code was developed for and is used by a major industrial company.

Code information: 4500 lines of source and 35 subroutines

Total Parallelization Time using ParaWise : Approximately 10 hours.

User Time: Approximately 30 minutes.

Results

Sun Fire E25K

Cray T3D

Cray T3E

IBM SP2

Transtech Paramid

Hewlett-Packard HP735

SUN FIRE E25K

2-D Partition
(30x30x142 test case)

Processors Speed Up

2 2.44

5 6.45

10 12.29

25 25.73

50 40.67

72 49.40

Results for Industrial CFD code on a 30x30x142 grid for a two-dimensional partitioning on the Sun Fire E25K (RWTH Aachen University).

CRAY T3D

1-D Partition

(30x30x142 test case)

2-D Partition

(30x30x142 test case)

Processors

Speed Up

Processors

Speed Up

4

3.78

4(2x2)

3.73

16

13.01

16(4x4)

11.29

64

24.21

64(8x8)

32.12

-

-

128(16x8)

47.24

Results for Industrial CFD code on a 30x30x142 grid on the Cray T3D for a one-dimensional and two-dimensional partitioning .

CRAY T3E

Processors	Speed Up
2-D Partition (30x30x142 test case)
4(2x2)	4.17
16(4x4)	16.94
32(8x4)	36.69
64(8x8)	63.21

Results for Industrial CFD code on a 30x30x142 grid on the Cray T3E for a two-dimensional partition.

IBM SP2

1-D Partition

(30x30x142 test case)

2-D Partition

(30x30x142 test case)

Processors Speed Up Processors Speed Up

2 2.29
2(2x1)
2.30

4 5.70 4(2x2) 4.54

12 16.51 12(6x2) 15.10

16 19.80 16(8x2) 18.43

Results for Industrial CFD code on a 30x30x142 grid on the IBM SP2 for a one-dimensional and two-dimensional partitioning.

Transtech Paramid

Processors	Time(secs)	Speed Up
1-D Partition (200x30x30 test case)
1	732.0	-
2	385.0	1.9
4	213.0	3.4
8	127.0	5.8

Hewlett-Packard HP735

Processors	Time(secs)	Speed Up
1-D Partition (1million cell problem)
1	2221.3	-
2	1137.1	1.6
3	792.0	1.9