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LAIPE2 Exhibits a Consistent Performance On Intel and AMD Processors

[Posted by Jenn-Ching Luo on July 23, 2016 ]


        A consistent performance of LAIPE2 on Intel Xeon and AMD Opteron could be predictable. Generally, any software, not in any special instructions, could have a consistent performance on different processor architectures. LAIPE 2 is one of them, without any special instructions. A consistent performance could be expected. This post uses timing results to show it.

TESTING EXAMPLE

Compute [C]=[A][B], where matrices [A], [B] and [C] are 4-byte real matrix. Matrix [A] is of order (15,000-by-11,000), and matrix [B] is of order (11,000-by-12,000), and matrix [C] is of order (15,000-by-12,000).

The LAIPE2 subroutine laipe$matmul_4 is called to perform the computation. gfortran is the compiler for the executable. The compilation option included -O3, and the executable was linked against neuloop4. neuloop4 is a library for homogeneous soft core computing.

COMPUTER 1

Computer: a Dell PowerEdge R815 with quad Opteron 6168, a total of 48 cores.
Operating System: Core of Windows Server 2008 R2

COMPUTER 2

Computer: a Dell PoweEdge R810 with quad Intel Xeon L7555, a total of 32 physical cores. Because L7555 can run at a higher frequency when using 2 or less cores, processor's turbo boost was disabled for the purpose to measure speedup. Further, logical core (e.g., hyper-threading) was also disabled for the same purpose.
Operating System: Core of Windows Server 2008 R2

SPEEDUP AND PARALLEL EFFICIENCY ON AMD OPTERON

        First, let us see performance on AMD Opteron. The computer has 48 cores. Speedup and parallel efficiency are listed in the table below.

        From the table, we can see one to twenty cores can yield an almost perfect speedup; 35 cores yields an efficiency 90%; 48 cores can speed up the computation to 39x. Matrix multiplication is a good example of parallel computing. The detailed timing results are appended in this post for reference.

Number
of Cores Elapsed
Time (sec) Speedup Efficiency
(%) 1 3493.63 1.0000 100.00 2 1730.18 2.0192 100.96 3 1151.58 3.0338 101.13 4 865.85 4.0349 100.87 5 691.38 5.0531 101.06 6 580.70 6.0162 100.27 7 497.99 7.0155 100.22 8 434.81 8.0348 100.43 9 387.62 9.0130 100.14 10 350.72 9.9613 99.61 11 323.08 10.8135 98.30 12 295.59 11.8192 98.46 13 271.01 12.8912 99.16 14 254.64 13.7199 98.00 15 238.63 14.6404 97.60 16 225.39 15.5004 96.88 17 214.50 16.2873 95.81 18 201.57 17.3321 96.29 19 192.85 18.1158 95.35 20 183.69 19.0192 95.10 21 175.14 19.9476 94.99 22 169.01 20.6711 93.96 23 161.34 21.6538 94.15 24 156.10 22.3807 93.25 25 148.01 23.6040 94.42 Le 5863 coq sportif - Le Le Coq Sportif sportif R1000 "Fear" 659c9f3 26 144.46 24.1841 93.02 27 138.31 25.2594 93.55 28 135.66 25.7528 91.97 29 129.12 27.0572 93.30 30 127.03 27.5024 91.67 31 123.46 28.2977 91.28 32 119.61 29.2085 91.28 33 116.50 29.9882 90.87 34 114.44 30.5280 89.79 35 110.90 31.5025 90.01 36 108.17 32.2976 89.72 37 105.57 33.0930 89.44 38 103.37 33.7973 88.94 39 102.02 34.2446 87.81 40 100.34 34.8179 87.04 41 96.71 36.1248 88.11 42 96.21 36.3125 86.46 43 94.50 36.9696 85.98 44 92.76 37.6631 85.60 45 92.32 37.8426 84.09 46 90.62 38.5525 83.81 47 90.62 38.5525 82.03 48 88.58 39.4404 82.17

SPEEDUP AND PARALLEL EFFICIENCY ON INTEL XEON

        Next, let us see performance on Inten Xeon. The computer has 32 physical cores. Speedup and parallel efficiency are listed in the table below. It also shows a performance of high efficiency, consistent to results on AMD Opteron.

        On 28 cores, the computation was speeded up to 27x, 97% parallel performance, which is almost perfect; 32 cores improved the computing up to 28x, and yielded a parallel efficiency 87%. The performance was consistent to the one on AMD Opteron.

        The detailed timing results are appended in this post for reference.

Number
of Cores Elapsed
Time (sec) Speedup Efficiency
(%) 1 5678.17 1.0000 100.00 2 2839.25 1.9999 99.99 3 1896.50 2.9940 99.80 4 1420.37 3.9977 99.94 5 1136.58 4.9958 99.92 6 955.10 5.9451 99.09 7 820.92 3.9168 98.81 8 745.72 7.6143 95.18 9 63.60 8.8225 98.03 10 574.71 9.8801 98.80 11 548.58 10.3507 94.10 12 489.73 11.5945 96.62 13 457.27 12.4175 95.52 14 418.39 13.5715 96.94 15 406.26 13.9767 93.18 16 383.34 14.8124 92.58 17 357.17 15.8977 93.52 18 323.36 17.5599 97.56 19 325.95 17.4204 91.69 20 291.63 19.4705 97.35 21 277.24 20.4811 97.53 22 263.85 21.5204 97.82 23 255.29 22.2420 96.70 24 256.92 22.1009 92.09 25 240.10 23.6492 94.60 26 250.77 22.6429 87.09 27 243.02 23.3650 86.54 28 208.07 27.2897 97.46 29 224.42 25.3015 87.25 30 219.13 25.9123 86.37 31 213.16 26.6381 85.93 32 204.39 27.7811 86.82

TIMING RESULTS ON AMD OPTERON

        The following has detailed timing results implemented on AMD Opteron.

  number of cores: 1
      Elapsed Time (Seconds): 3493.63
      CPU Time in User Mode (Seconds): 3491.97
      CPU Time in Kernel Mode (Seconds): 1.31
      Total CPU Time (Seconds): 3493.28

  number of cores: 2
      Elapsed Time (Seconds): 1730.18
      CPU Time in User Mode (Seconds): 3452.29
      CPU Time in Kernel Mode (Seconds): 0.16
      Total CPU Time (Seconds): 3452.44

  number of cores: 3
      Elapsed Time (Seconds): 1151.58
      CPU Time in User Mode (Seconds): 3452.69
      CPU Time in Kernel Mode (Seconds): 0.36
      Total CPU Time (Seconds): 3453.05

  number of cores: 4
      Elapsed Time (Seconds): 865.85
      CPU Time in User Mode (Seconds): 3453.10
      CPU Time in Kernel Mode (Seconds): 0.41
      Total CPU Time (Seconds): 3453.50

  number of cores: 5
      Elapsed Time (Seconds): 691.38
      CPU Time in User Mode (Seconds): 3454.36
      CPU Time in Kernel Mode (Seconds): 0.44
      Total CPU Time (Seconds): 3454.80

  number of cores: 6
      Elapsed Time (Seconds): 580.70
      CPU Time in User Mode (Seconds): 3456.53
      CPU Time in Kernel Mode (Seconds): 0.44
      Total CPU Time (Seconds): 3456.97
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  number of cores: 7
      Elapsed Time (Seconds): 497.99
      CPU Time in User Mode (Seconds): 3460.30
      CPU Time in Kernel Mode (Seconds): 0.31
      Total CPU Time (Seconds): 3460.62

  number of cores: 8
      Elapsed Time (Seconds): 434.81
      CPU Time in User Mode (Seconds): 3463.38
      CPU Time in Kernel Mode (Seconds): 0.70
      Total CPU Time (Seconds): 3464.08

  number of cores: 9
      Elapsed Time (Seconds): 387.62
      CPU Time in User Mode (Seconds): 3468.37
      CPU Time in Kernel Mode (Seconds): 0.30
      Total CPU Time (Seconds): 3468.67

  number of cores: 10
      Elapsed Time (Seconds): 350.72
      CPU Time in User Mode (Seconds): 3472.94
      CPU Time in Kernel Mode (Seconds): 0.53
      Total CPU Time (Seconds): 3473.47

  number of cores: 11
      Elapsed Time (Seconds): 323.08
      CPU Time in User Mode (Seconds): 3479.23
Diesel Magnete Exposure I-Sneaker, Zapatillas Altas Para Hombre Azul (T6065 - Blue Nights Pr052) , El hombre que conducía el coche Patines Calzado casual calzado casual clásico de alta calidad brown Diadora Heritage - Sneakers Equipe Stone Wash 12 para Hombre y Mujer C7438 - Bco-profundo Carmine Azul-rojo , El hombre que conducía el coche Patines Calzado casual calzado casual clásico de alta calidad blue , DC Shoes Men s Trase Slip-On TX Low Top Sneakers blanco/negro , El hombre que conducía el coche Patines Calzado casual calzado casual clásico de alta calidad black Frau Verona 28A4 Slip on Hombre Blue El hombre que conducía el coche Patines Calzado casual calzado casual clásico de alta calidad blue , El Naturalista N5363, Alpargatas para Hombre Gris (Grafito) , Toms - Navy MicrostripeTrimmed - Espadrillas Hombre Azul , El hombre que conducía el coche Patines Calzado casual calzado casual clásico de alta calidad gray Zapatos De Fútbol De Los Hombres De Alta Calidad Zapatos De Entrenamiento Zapatos Casuales De Los Deportes gris , El hombre que conducía el coche Patines Calzado casual calzado casual clásico de alta calidad black , Zapatos Deportivos Ocasionales Del Verano De Los Hombres Zapatos Corrientes Zapatos De Malla Zapatos Respirables Respirables Ligeros Del Paño 9 , El hombre que conducía el coche Patines Calzado casual calzado casual clásico de alta calidad black , Toms Classics 1001A07, Alpargatas Hombre Toffee Coated Linen/Stripe Diadora Heritage - Sneakers Equipe Stone Wash 12 para Hombre y Mujer 75013 - Guijarro Gris El hombre que conducía el coche Patines Calzado casual calzado casual clásico de alta calidad gray El hombre que conducía el coche Patines Calzado casual calzado casual clásico de alta calidad orange Puma - Trinomic Disc Blaze CT Blanc , El hombre que conducía el coche Patines Calzado casual calzado casual clásico de alta calidad Navy Blue El hombre que conducía el coche Patines Calzado casual calzado casual clásico de alta calidad Orange GOLDGOD Zapatos De Hombres Salvajes Marea Zapatos Deportivos Zapatos De Cuero De Los Ho Black , Diadora Heritage - Zapatillas de deporte para mujer Grigio-Bianco El hombre que conducía el coche Patines Calzado casual calzado casual clásico de alta calidad Khaki , Diadora Heritage - Sneakers Equipe Stone Wash 12 para Hombre y Mujer Blu TOMS Classic, Alpargata para Hombre Rojo (Black Cherry Heritage Canvas 601) Oliver Sweeney Hombres Ante Alpargatas de Ives Café Café Crocs Walu Luxe lienzo Slip-on del holgazán - ,
      CPU Time in Kernel Mode (Seconds): 0.45
      Total CPU Time (Seconds): 3479.68

  number of cores: 12
      Elapsed Time (Seconds): 295.59
      CPU Time in User Mode (Seconds): 3488.31
      CPU Time in Kernel Mode (Seconds): 0.50
      Total CPU Time (Seconds): 3488.81

  number of cores: 13
      Elapsed Time (Seconds): 271.01
      CPU Time in User Mode (Seconds): 3483.75
      CPU Time in Kernel Mode (Seconds): 0.51
      Total CPU Time (Seconds): 3484.27

  number of cores: 14
      Elapsed Time (Seconds): 254.64
      CPU Time in User Mode (Seconds): 3505.55
      CPU Time in Kernel Mode (Seconds): 0.39
      Total CPU Time (Seconds): 3505.94

  number of cores: 15
      Elapsed Time (Seconds): 238.63
      CPU Time in User Mode (Seconds): 3529.73
      CPU Time in Kernel Mode (Seconds): 0.62
      Total CPU Time (Seconds): 3530.35

  number of cores: 16
      Elapsed Time (Seconds): 225.39
      CPU Time in User Mode (Seconds): 3536.64
      CPU Time in Kernel Mode (Seconds): 0.78
      Total CPU Time (Seconds): 3537.42

  number of cores: 17
      Elapsed Time (Seconds): 214.50
      CPU Time in User Mode (Seconds): 3565.95
      Kamik Waterbug9g, Botas de Nieve Unisex Niños Grau (Charcoal-charbon) Joseph Cheaney & Sons - Botas hombre - Pleaser DELIGHT-3025 Blk Str Faux Leather/Blk Matte UK 7 (EU 40) - , Zapatos De Hombre Nuevo Estilo para Sandalias De Verano Cuero Casual Baotou Costura Firme Beach Al Aire Libre... - Nike PerformanceLUNAREPIC Low Flyknit 2 - Zapatillas Neutras - Black - Hi-Tec Jackson Hole 400 - Botas de senderismo de Piel para hombre Negros-marrón ZQZQ Hebilla, Hombres, Negocios, Ropa Formal, Zapatos De Cuero, Calzado De Hombre, Inglaterra Brown Hogan Hombre HXM00N09041LNDU806 Azul Cuero Zapatillas El hombre que conducía el coche Patines Calzado casual calzado casual clásico de alta calidad Beige NBWE Zapatos Deportivos Respirables De Cuero Para Hombres Zapatos Deportivos Ocasionales De Skate Para Hombres,41 Converse All Star Customized Unisex - Zapatos Personalizados (Producto Artesano) River - mysChuck Taylor - zapatilla baja Unisex, para niños - TGKHUS Sandalias Plataforma Plataforma Gruesa Talón 15Cm - , Art Heathrow, Botines para Mujer - , Camel Active Aged 77, Botas Estilo Motero para Mujer - Hunter Original Tall Adjustable W24893 - Botas de caucho unisex - MORENA - Mocasines para mujer - , mysChuck Taylor - Zapatillas altas Mujer - Dr. Martens Mujer Mallow Rosa yelena Sandalias - , HUAIHAIZ Tacones altosSandalias de verano espeso, zapatos de mujer de alta Heel Shoes 37 negro - Reebok Zigkick Wild Trail zapatillas de running Flight Blue/Navy/Impact Blue/Solar Pink , mysChuck Taylor - Tobillo bajo Mujer , Melvin & HamiltonAmelie 5 - Botines Chelsea Mujer Marrón , Reebok R Crossfit Nano 7.0, Zapatillas de Running Unisex Negro (Black/White/Primal Red) , RYKÄ - Zapatillas para deportes de interior para mujer 40,5 (9) - , Reitstiefel TURIN, 35, N (43/33.5) - 35 , QQWWEERRTT Moda Zapatos de Suela Gruesa de Las Mujeres de Invierno nuevos Zapatos de Cuero Estudiantes universales Zapatos de Plataforma de Alto Ocio Zapatos,38,Negro negro MUYII Zapatos Casuales Gruesos De Las Mujeres Zapatos Casuales Profundos Decorativos Del Metal De La Cabeza,Black-40 Black , Skechers Go Step Lite, Mary Janes para Mujer Gris (Charcoal) , Saucony Running Progrid Integrity St2 - - Mujer negro/gris CPU Time in Kernel Mode (Seconds): 0.73
      Total CPU Time (Seconds): 3566.68

  number of cores: 18
      Elapsed Time (Seconds): 201.57
      CPU Time in User Mode (Seconds): 3550.77
      CPU Time in Kernel Mode (Seconds): 0.44
      Total CPU Time (Seconds): 3551.21

  number of cores: 19
      Elapsed Time (Seconds): 192.85
      CPU Time in User Mode (Seconds): 3573.61
      CPU Time in Kernel Mode (Seconds): 0.81
      Total CPU Time (Seconds): 3574.42

  number of cores: 20
      Elapsed Time (Seconds): 183.69
      CPU Time in User Mode (Seconds): 3577.45
      CPU Time in Kernel Mode (Seconds): 0.64
      Total CPU Time (Seconds): 3578.09

  number of cores: 21
      Elapsed Time (Seconds): 175.14
      CPU Time in User Mode (Seconds): 3585.39
      CPU Time in Kernel Mode (Seconds): 0.78
      Total CPU Time (Seconds): 3586.17

  number of cores: 22
      Elapsed Time (Seconds): 169.01
      CPU Time in User Mode (Seconds): 3603.50
      CPU Time in Kernel Mode (Seconds): 1.01
      Total CPU Time (Seconds): 3604.51

  number of cores: 23
      Elapsed Time (Seconds): 161.34
      CPU Time in User Mode (Seconds): 3605.79
      CPU Time in Kernel Mode (Seconds): 0.86
      Total CPU Time (Seconds): 3606.65

  number of cores: 24
      Elapsed Time (Seconds): 156.10
      CPU Time in User Mode (Seconds): 3608.88
      CPU Time in Kernel Mode (Seconds): 0.86
      Total CPU Time (Seconds): 3609.74

  number of cores: 25
      Elapsed Time (Seconds): 148.01
      CPU Time in User Mode (Seconds): 3621.45
      CPU Time in Kernel Mode (Seconds): 0.86
      Total CPU Time (Seconds): 3622.31

  number of cores: 26
      Elapsed Time (Seconds): 144.46
      CPU Time in User Mode (Seconds): 3626.06
      CPU Time in Kernel Mode (Seconds): 0.81
      Total CPU Time (Seconds): 3626.87

  number of cores: 27
      Elapsed Time (Seconds): 138.31
      CPU Time in User Mode (Seconds): 3626.41
      CPU Time in Kernel Mode (Seconds): 0.97
      Total CPU Time (Seconds): 3627.38

  number of cores: 28
      Elapsed Time (Seconds): 135.66
      CPU Time in User Mode (Seconds): 3641.73
      CPU Time in Kernel Mode (Seconds): 1.08
      Total CPU Time (Seconds): 3642.81

  number of cores: 29
      Elapsed Time (Seconds): 129.12
      CPU Time in User Mode (Seconds): 3646.65
      CPU Time in Kernel Mode (Seconds): 0.83
      Total CPU Time (Seconds): 3647.48

  number of cores: 30
      Elapsed Time (Seconds): 127.03
      CPU Time in User Mode (Seconds): 3655.20
      CPU Time in Kernel Mode (Seconds): 0.89
      Total CPU Time (Seconds): 3656.09

  number of cores: 31
      Elapsed Time (Seconds): 123.46
      CPU Time in User Mode (Seconds): 3669.52
      CPU Time in Kernel Mode (Seconds): 1.03
      Total CPU Time (Seconds): 3670.55

  number of cores: 32
      Elapsed Time (Seconds): 119.61
      CPU Time in User Mode (Seconds): 3673.14
      CPU Time in Kernel Mode (Seconds): 1.03
      Total CPU Time (Seconds): 3674.17

  number of cores: 33
      Elapsed Time (Seconds): 116.50
      CPU Time in User Mode (Seconds): 3688.46
      CPU Time in Kernel Mode (Seconds): 0.98
      Total CPU Time (Seconds): 3689.44

  number of cores: 34
      Elapsed Time (Seconds): 114.44
      CPU Time in User Mode (Seconds): 3695.40
      CPU Time in Kernel Mode (Seconds): 0.76
      Total CPU Time (Seconds): 3696.16

  number of cores: 35
      Elapsed Time (Seconds): 110.90
      CPU Time in User Mode (Seconds): 3707.72
      CPU Time in Kernel Mode (Seconds): 0.80
      Total CPU Time (Seconds): 3708.52

  number of cores: 36
   

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  Elapsed Time (Seconds): 108.17
      CPU Time in User Mode (Seconds): 3725.34
      CPU Time in Kernel Mode (Seconds): 0.90
      Total CPU Time (Seconds): 3726.24

  number of cores: 37
      Elapsed Time (Seconds): 105.57
      CPU Time in User Mode (Seconds): 3745.55
      CPU Time in Kernel Mode (Seconds): 1.00
      Total CPU Time (Seconds): 3746.55

  number of cores: 38
      Elapsed Time (Seconds): 103.37
      CPU Time in User Mode (Seconds): 3757.44
      CPU Time in Kernel Mode (Seconds): 1.05
      Total CPU Time (Seconds): 3758.49

  number of cores: 39
      Elapsed Time (Seconds): 102.02
      CPU Time in User Mode (Seconds): 3773.71
      CPU Time in Kernel Mode (Seconds): 1.33
      Total CPU Time (Seconds): 3775.04

  number of cores: 40
      Elapsed Time (Seconds): 100.34
      CPU Time in User Mode (Seconds): 3801.43
      CPU Time in Kernel Mode (Seconds): 0.98
      Total CPU Time (Seconds): 3802.42

  number of cores: 41
      Elapsed Time (Seconds): 96.71
      CPU Time in User Mode (Seconds): 3818.86
      CPU Time in Kernel Mode (Seconds): 0.92
      Total CPU Time (Seconds): 3819.78

  number of cores: 42
      Elapsed Time (Seconds): 96.21
      CPU Time in User Mode (Seconds): 3843.96
      CPU Time in Kernel Mode (Seconds): 1.15
      Total CPU Time (Seconds): 3845.11

  number of cores: 43
      Elapsed Time (Seconds): 94.50
      CPU Time in User Mode (Seconds): 3854.24
      CPU Time in Kernel Mode (Seconds): 1.22
      Total CPU Time (Seconds): 3855.46

  number of cores: 44
      Elapsed Time (Seconds): 92.76
      CPU Time in User Mode (Seconds): 3879.04
      CPU Time in Kernel Mode (Seconds): 1.29
      Total CPU Time (Seconds): 3880.34

  number of cores: 45
      Elapsed Time (Seconds): 92.32
      CPU Time in User Mode (Seconds): 3910.18
      CPU Time in Kernel Mode (Seconds): 1.26
      Total CPU Time (Seconds): 3911.44

  number of cores: 46
      Elapsed Time (Seconds): 90.62
      CPU Time in User Mode (Seconds): 3942.27
      CPU Time in Kernel Mode (Seconds): 1.31
      Total CPU Time (Seconds): 3943.58

  number of cores: 47
      Elapsed Time (Seconds): 90.62
      CPU Time in User Mode (Seconds): 3984.56
      CPU Time in Kernel Mode (Seconds): 1.11
      Total CPU Time (Seconds): 3985.67

  number of cores: 48
      Elapsed Time (Seconds): 88.58
      CPU Time in User Mode (Seconds): 4025.09
      CPU Time in Kernel Mode (Seconds): 1.12
      Total CPU Time (Seconds): 4026.21

TIMING RESULTS ON INTEL XEON

        The following has detailed timing results implemented on Intel Xeon.

  number of cores: 1
      Elapsed Time (Seconds): 5678.17
      CPU Time in User Mode (Seconds): 5677.11
      CPU Time in Kernel Mode (Seconds): 0.72
      Total CPU Time (Seconds): 5677.83

  number of cores: 2
      Elapsed Time (Seconds): 2839.25
      CPU Time in User Mode (Seconds): 5677.53
      CPU Time in Kernel Mode (Seconds): 0.30
      Total CPU Time (Seconds): 5677.83

  number of cores: 3
      Elapsed Time (Seconds): 1896.50
      CPU Time in User Mode (Seconds): 5678.12
      CPU Time in Kernel Mode (Seconds): 0.27
      Total CPU Time (Seconds): 5678.39

  number of cores: 4
      Elapsed Time (Seconds): 1420.37
      Le 5863 coq sportif - Le Le Coq Sportif sportif R1000 "Fear" 659c9f3 CPU Time in User Mode (Seconds): 5679.28
      CPU Time in Kernel Mode (Seconds): 0.41
      Total CPU Time (Seconds): 5679.68

  number of cores: 5
      Elapsed Time (Seconds): 1136.58
      CPU Time in User Mode (Seconds): 5680.54
      CPU Time in Kernel Mode (Seconds): 0.41
      Total CPU Time (Seconds): 5680.95

  number of cores: 6
      Elapsed Time (Seconds): 955.10
      CPU Time in User Mode (Seconds): 5682.24
      CPU Time in Kernel Mode (Seconds): 0.59
      Total CPU Time (Seconds): 5682.84

  number of cores: 7
      Elapsed Time (Seconds): 820.92
      CPU Time in User Mode (Seconds): 5694.96
      CPU Time in Kernel Mode (Seconds): 0.64
      Total CPU Time (Seconds): 5695.60

  number of cores: 8
      Elapsed Time (Seconds): 745.72
      CPU Time in User Mode (Seconds): 5911.72
      CPU Time in Kernel Mode (Seconds): 0.95
      Total CPU Time (Seconds): 5912.67

  number of cores: 9
      Elapsed Time (Seconds): 643.60
      CPU Time in User Mode (Seconds): 5737.51
      CPU Time in Kernel Mode (Seconds): 0.56
      Total CPU Time (Seconds): 5738.08

  number of cores: 10
      Elapsed Time (Seconds): 574.71
      CPU Time in User Mode (Seconds): 5726.95
      CPU Time in Kernel Mode (Seconds): 0.59
      Total CPU Time (Seconds): 5727.55

  number of cores: 11
      Elapsed Time (Seconds): 548.58
      CPU Time in User Mode (Seconds): 5964.87
      CPU Time in Kernel Mode (Seconds): 0.55
      Total CPU Time (Seconds): 5965.42

  number of cores: 12
      Elapsed Time (Seconds): 489.73
      CPU Time in User Mode (Seconds): 5822.60
      CPU Time in Kernel Mode (Seconds): 0.45
      Total CPU Time (Seconds): 5823.05

  number of cores: 13
      Elapsed Time (Seconds): 457.27
      CPU Time in User Mode (Seconds): 5874.45
      CPU Time in Kernel Mode (Seconds): 0.62
      Total CPU Time (Seconds): 5875.08

  number of cores: 14
      Elapsed Time (Seconds): 418.39
      CPU Time in User Mode (Seconds): 5794.88
      CPU Time in Kernel Mode (Seconds): 0.58
      Total CPU Time (Seconds): 5795.45

  number of cores: 15
      Elapsed Time (Seconds): 406.26
      CPU Time in User Mode (Seconds): 5994.48
      CPU Time in Kernel Mode (Seconds): 0.51
      Total CPU Time (Seconds): 5994.99

  number of cores: 16
      Elapsed Time (Seconds): 383.34
      CPU Time in User Mode (Seconds): 6040.25
      CPU Time in Kernel Mode (Seconds): 0.45
      Total CPU Time (Seconds): 6040.70

  number of cores: 17
      Elapsed Time (Seconds): 357.17
      CPU Time in User Mode (Seconds): 5978.49
      CPU Time in Kernel Mode (Seconds): 0.51
      Total CPU Time (Seconds): 5979.00

  number of cores: 18
      Elapsed Time (Seconds): 323.36
      CPU Time in User Mode (Seconds): 5758.32
      CPU Time in Kernel Mode (Seconds): 0.53
      Alpargatas Total CPU Time (Seconds): 5758.85

  number of cores: 19
      Elapsed Time (Seconds): 325.95
      CPU Time in User Mode (Seconds): 6084.05
      CPU Time in Kernel Mode (Seconds): 0.53
      Total CPU Time (Seconds): 6084.58

  number of cores: 20
      Elapsed Time (Seconds): 291.63
      CPU Time in User Mode (Seconds): 5802.43
      CPU Time in Kernel Mode (Seconds): 0.73
      Total CPU Time (Seconds): 5803.16

  number of cores: 21
      Elapsed Time (Seconds): 277.24
      CPU Time in User Mode (Seconds): 5759.42
      CPU Time in Kernel Mode (Seconds): 0.76
      Total CPU Time (Seconds): 5760.18

  number of cores: 22
      Elapsed Time (Seconds): 263.85
      CPU Time in User Mode (Seconds): 5726.13
      CPU Time in Kernel Mode (Seconds): 0.55
      Total CPU Time (Seconds): 5726.67

  number of cores: 23
      Elapsed Time (Seconds): 255.29
      CPU Time in User Mode (Seconds): 5791.99
      CPU Time in Kernel Mode (Seconds): 0.67
      Total CPU Time (Seconds): 5792.66

  number of cores: 24
      Elapsed Time (Seconds): 256.92
      CPU Time in User Mode (Seconds): 6060.16
      CPU Time in Kernel Mode (Seconds): 0.70
      Total CPU Time (Seconds): 6060.86

  number of cores: 25
      Elapsed Time (Seconds): 240.10
      CPU Time in User Mode (Seconds): 5938.63
      CPU Time in Kernel Mode (Seconds): 0.66
      Total CPU Time (Seconds): 5939.29

  number of cores: 26
      Elapsed Time (Seconds): 250.77
      CPU Time in User Mode (Seconds): 6365.71
      CPU Time in Kernel Mode (Seconds): 0.81
      Total CPU Time (Seconds): 6366.53

  number of cores: 27
      Elapsed Time (Seconds): 243.02
      CPU Time in User Mode (Seconds): 6399.21
      CPU Time in Kernel Mode (Seconds): 0.90
      Total CPU Time (Seconds): 6400.11

  number of cores: 28
      Elapsed Time (Seconds): 208.07
      CPU Time in User Mode (Seconds): 5764.52
      CPU Time in Kernel Mode (Seconds): 0.78
      Total CPU Time (Seconds): 5765.30

  number of cores: 29
      Elapsed Time (Seconds): 224.42
      CPU Time in User Mode (Seconds): 6353.00
      CPU Time in Kernel Mode (Seconds): 0.61
      Total CPU Time (Seconds): 6353.61

  number of cores: 30
      Elapsed Time (Seconds): 219.13
      CPU Time in User Mode (Seconds): 6402.33
      3003425
3990726
4593511
5804718
10568250
10955734
12124921
13894534
14129165
CPU Time in Kernel Mode (Seconds): 0.59
      Total CPU Time (Seconds): 6402.92

  number of cores: 31
      Elapsed Time (Seconds): 213.16
      CPU Time in User Mode (Seconds): 6407.62
      CPU Time in Kernel Mode (Seconds): 0.67
      Total CPU Time (Seconds): 6408.29

  number of cores: 32
      Elapsed Time (Seconds): 204.39
      CPU Time in User Mode (Seconds): 6345.79
      CPU Time in Kernel Mode (Seconds): 0.69
      Total CPU Time (Seconds): 6346.48