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  1. Kubuntu Linux (release "utopic", kernel 3.16)
  2. Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz
  3. compiles and tests OK
  4.  
  5. n = 1024
  6. determining the best chunk size for float
  7. chunk size 8: 1.86028e-06
  8. chunk size 16: 1.40421e-06
  9. chunk size 32: 1.17402e-06
  10. chunk size 64: 1.11498e-06
  11. chunk size 128: 9.58237e-07
  12. chunk size 256: 9.23128e-07
  13. chunk size 512: 9.11191e-07
  14. chunk size 1024: 9.08579e-07
  15. best chunk: 1024
  16. best time: 9.08579e-07
  17. determining the best chunk size for double
  18. chunk size 8: 3.29332e-06
  19. chunk size 16: 2.36048e-06
  20. chunk size 32: 1.94324e-06
  21. chunk size 64: 1.98802e-06
  22. chunk size 128: 1.80054e-06
  23. chunk size 256: 1.72109e-06
  24. chunk size 512: 1.66247e-06
  25. chunk size 1024: 1.6797e-06
  26. best chunk: 512
  27. best time: 1.66247e-06
  28.  
  29. n = 1048576
  30. determining the best chunk size for float
  31. chunk size 8: 0.00369423
  32. chunk size 16: 0.00320329
  33. chunk size 32: 0.00312558
  34. chunk size 64: 0.00286498
  35. chunk size 128: 0.00274406
  36. chunk size 256: 0.00270245
  37. chunk size 512: 0.00270243
  38. chunk size 1024: 0.00266547
  39. chunk size 2048: 0.00266664
  40. chunk size 4096: 0.00267172
  41. chunk size 8192: 0.00268671
  42. chunk size 16384: 0.00317652
  43. chunk size 32768: 0.00316331
  44. chunk size 65536: 0.00323725
  45. chunk size 131072: 0.00372942
  46. chunk size 262144: 0.00376311
  47. chunk size 524288: 0.00392896
  48. chunk size 1048576: 0.00404745
  49. best chunk: 1024
  50. best time: 0.00266547
  51. determining the best chunk size for double
  52. chunk size 8: 0.00779088
  53. chunk size 16: 0.0068221
  54. chunk size 32: 0.00635093
  55. chunk size 64: 0.00627091
  56. chunk size 128: 0.00635275
  57. chunk size 256: 0.00675343
  58. chunk size 512: 0.00685923
  59. chunk size 1024: 0.00626505
  60. chunk size 2048: 0.00640567
  61. chunk size 4096: 0.00674111
  62. chunk size 8192: 0.00780933
  63. chunk size 16384: 0.00728472
  64. chunk size 32768: 0.00746304
  65. chunk size 65536: 0.0089764
  66. chunk size 131072: 0.00861257
  67. chunk size 262144: 0.00860238
  68. chunk size 524288: 0.00905242
  69. chunk size 1048576: 0.0117367
  70. best chunk: 1024
  71. best time: 0.00626505
  72.  
  73. n = 134217728
  74. determining the best chunk size for float
  75. chunk size 8: 0.889763
  76. chunk size 16: 0.827813
  77. chunk size 32: 0.805698
  78. chunk size 64: 0.796822
  79. chunk size 128: 0.811615
  80. chunk size 256: 0.809803
  81. chunk size 512: 0.814068
  82. chunk size 1024: 0.805384
  83. chunk size 2048: 0.810903
  84. chunk size 4096: 0.814415
  85. chunk size 8192: 0.825155
  86. chunk size 16384: 1.07452
  87. chunk size 32768: 0.887679
  88. chunk size 65536: 0.891754
  89. chunk size 131072: 1.16518
  90. chunk size 262144: 1.15539
  91. chunk size 524288: 1.03168
  92. chunk size 1048576: 1.13955
  93. chunk size 2097152: 1.25294
  94. chunk size 4194304: 1.58874
  95. chunk size 8388608: 1.66725
  96. chunk size 16777216: 1.6401
  97. chunk size 33554432: 1.59993
  98. chunk size 67108864: 1.73619
  99. chunk size 134217728: 1.61428
  100. best chunk: 64
  101. best time: 0.796822
  102. determining the best chunk size for double
  103. chunk size 8: 2.28784
  104. chunk size 16: 2.2358
  105. chunk size 32: 2.43778
  106. chunk size 64: 2.21546
  107. chunk size 128: 2.32584
  108. chunk size 256: 1.92211
  109. chunk size 512: 2.23991
  110. chunk size 1024: 2.15217
  111. chunk size 2048: 2.40803
  112. chunk size 4096: 2.17168
  113. chunk size 8192: 2.8076
  114. chunk size 16384: 2.0949
  115. chunk size 32768: 2.59554
  116. chunk size 65536: 3.02774
  117. chunk size 131072: 2.1791
  118. chunk size 262144: 2.46926
  119. chunk size 524288: 2.37893
  120. chunk size 1048576: 2.95173
  121. chunk size 2097152: 3.50388
  122. chunk size 4194304: 3.59663
  123. chunk size 8388608: 4.19989
  124. chunk size 16777216: 3.4334
  125. chunk size 33554432: 3.2218
  126. chunk size 67108864: 3.1185
  127. chunk size 134217728: 3.56364
  128. best chunk: 256
  129. best time: 1.92211
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