wiki:exp1_par

Parallélisme

Référence de l'expérience :

Parallelization profiling:

The number of threads used for the parallelism is: 16.

  • The number of total loops is 37 containing 82 total modules.
  • The number of parallelized loop is 28 containing 59 modules,
  • the percentage of parallel loops is 75.6757%
  • and the percentage of modules that have been parallelized is 71.9512%.
  • There are 5 modules not present in an order directive.

In the backward procedure:

  • The number of atomic update in the parallel regions is 109, the total number of update is 428.
  • The percentage of atomic update is 25.4673%

Résultats

m1qn3: output mode is 6

number of iterations: 15

number of simulations: 52

realized relative precision on g: 0.55E-01

norm of x = 0.19348639E+04

f = 0.17069031E+03

norm of g = 0.70167274E+01

résultat détaillé :

run duration

  • sequential (old version): 994s
  • sequential (new version): 330s
  • parallèle : 206s
  • speedup : 1,6 (amdahl (à la louche sur le nb de modules parallélisés)= 3,1)
Last modified 6 years ago Last modified on 04/27/11 15:26:00