Results for generic cases

In this part, all the cases are taken in account.


Table: Timing comparison of different runs with Bak on XT4, XE6 and best combination for generic cases on XE6
Nb. Procs Bak XT4 Bak XE6 Best Comb.
16 199.154 218.722 214.409
32 106.790 98.113 92.137
64 63.129 57.494 53.182
128 42.036 39.360 33.556
256 27.471 29.492 24.347
512 22.137 25.951 20.363


One can observe that the speedup is slightly greater on average than the no frozen combination routines runs, a surprising result but the differences are small and when the above runs were performed large variations in runtime were observed. On average, the best combination is faster than the Bak version on XT4, and faster than the one on XE6. A peak is reached for 512 processes, with speedup compare to XE6. Another one is noticed for 128 cores with a time reduction of compare to XT4.


Table: Variation rate of different runs of best combination for generic cases on XE6 with Bak on XT4 and XE6
<#1329#> Best combination  
  Bak XT4 Bak XE6
16 7.66 -1.97  
32 -13.72 -6.10  
64 -15.76 -7.50  
128 -20.65 -15.25  
256 -11.37 -17.45  
512 -8.01 -21.53  
Average -10.31 -11.63  


Valène Pellissier 2011-08-24