CRIHAN  - Mars 2001
Outils d’optimisation - Page 55
5- I. load balancing MPI : ntx = 200
•+-----------+--------+--------+--------++--------+
•| ntx = 200 |   p0   |   p1   |   2p   ||   1p   |
•+-----------+--------+--------+--------++--------+
•|  calcul   |   7.87 |  11.02 |  18.89 ||  24.04 |
•+-----------+--------+--------+--------++--------+
•|  erreur   |   6.10 |   2.04 |   8.14 ||  13.55 |  A(2) = 37.70 / 18.88 = 1.99
•+-----------+--------+--------+--------++--------+  E(2) = 100%
•|  total    |  18.88 |  18.88 |  37.70 ||  37.68 |
•+-----------+--------+--------+--------++--------+
•+-----------+--------+--------+--------+--------+--------++--------+
•| ntx = 200 |   p0   |   p1   |   p2   |   p3   |   4p   ||   1p   |
•+-----------+--------+--------+--------+--------+--------++--------+
•|  calcul   |   4.31 |   4.18 |   3.76 |   4.86 |  17.11 ||  24.04 |
•+-----------+--------+--------+--------+--------+--------++--------+
•|  erreur   |   1.83 |   2.24 |   3.00 |   3.02 |  10.09 ||  13.55 |  A(4) = 3.37
•+-----------+--------+--------+--------+--------+--------++--------+  E(4) =  84%
•|  total    |  11.13 |  11.15 |  11.16 |  11.16 |  44.67 ||  37.68 |
•+-----------+--------+--------+--------+--------+--------++--------+
•+-----------+--------+--------+--------+--------+--------+--------+--------+--------+--------++--------+
•| ntx = 200 |   p0   |   p1   |   p2   |   p3   |   p4   |   p5   |   p6   |   p7   |   8p   ||   1p   |
•+-----------+--------+--------+--------+--------+--------+--------+--------+--------+--------++--------+
•|  calcul   |   3.01 |   2.76 |   2.02 |   2.59 |   2.45 |   2.42 |   2.39 |   2.51 |  20.15 ||  24.04 |
•+-----------+--------+--------+--------+--------+--------+--------+--------+--------+--------++--------+
•|  erreur   |   1.51 |   1.17 |   1.98 |   1.47 |   1.44 |   1.66 |   1.33 |   0.99 |  11.55 ||  13.55 |  A(8) = 3.95
•+-----------+--------+--------+--------+--------+--------+--------+--------+--------+--------++--------+  E(8) =  49%
•|  total    |   9.53 |   9.50 |   9.52 |   9.54 |   9.53 |   9.55 |   9.54 |   9.55 |  76.35 ||  37.68 |
•+-----------+--------+--------+--------+--------+--------+--------+--------+--------+--------++--------+