Gyro Timing Results on Teragrid

Application: Gyro

Platform: Teragrid at NCSA. | User Guide NCSA's TeraGrid cluster consists of 887 IBM cluster nodes: 256 nodes with dual 1.3 GHz Intel® Itanium® 2 processors (Phase 1) and 631 nodes with dual 1.5 GHz Intel® Itanium® 2 processors (Phase 2).

Simulation: B2-cy

UnInstrumented version results:

Timing.out files:16 | 32 | 64 | 128 | 192 | 256 | 384 | 512

 

Graphs from the data extracted from the above results:

 

 

Data for these graphs:

Processors NL NL_tr Coll Coll_tr lin_RHS field extras I/O
16 1.34E+02 1.13E+02 0.00E+00 8.05E-01 3.57E+01 2.09E+02 1.38E+01 6.58E-01
32 6.60E+01 5.89E+01 0.00E+00 3.53E-01 1.76E+01 1.08E+02 6.93E+00 4.49E-01
64 3.34E+01 3.34E+01 0.00E+00 1.36E-01 8.81E+00 5.92E+01 3.30E+00 2.68E-01
128 1.41E+01 2.26E+01 0.00E+00 6.73E-02 3.86E+00 3.05E+01 2.40E+00 2.41E-01
192 1.06E+01 1.06E+01 0.00E+00 4.73E-02 2.90E+00 2.27E+01 1.18E+00 1.87E-01
256 7.00E+00 9.31E+00 0.00E+00 3.41E-02 1.93E+00 1.78E+01 8.34E-01 2.01E-01
384 5.20E+00 7.09E+00 0.00E+00 2.65E-02 1.46E+00 1.53E+01 1.26E+00 1.86E-01
512 3.62E+00 3.87E+00 0.00E+00 1.93E-02 9.80E-01 1.30E+01 5.73E-01 1.58E-01

 

Processors

Total Time

Timesteps/sec

16

4.06E+03

0.246244767

32

2.08E+03

0.481000481

64

1.11E+03

0.901713255

128

5.89E+02

1.696928559

192

3.96E+02

2.522704339

256

2.98E+02

3.357958361

384

2.52E+02

3.969829297

512

1.77E+02

5.646527386