[gmx-users] Installation of 4.0.5 on Cray XD1- gmxtest

Mark Abraham Mark.Abraham at anu.edu.au
Thu Sep 3 00:47:02 CEST 2009


Dean Cuebas wrote:
> Dear colleagues,
> 
> After installation of 4.0.5 on my MacBook, all is fine after testing with
> gmxtest 4.0.4 
> (except for the [0-4]2[0-4] kernel errors that are noted in
> http://oldwiki.gromacs.org/index.php/Test-set)
> 
> But after install on Cray XD1, all is well except the kernel errors, AND
> bad virial errors in these:
> 
> FAILED. Check files in aminoacids
> FAILED. Check files in field
> FAILED. Check files in tip4p
> FAILED. Check files in tip4pflex
> FAILED. Check files in water
> 
> I know that the oldwiki says " It is normal for GROMACS 4.0-4.0.5 to fail
> gmxtest-4.0.4 on tip4p, tip4pflex, perhaps some others,..."
> 
> but I just wanted to check for sure that these errors are in the gmxtest,
> and not my installation.
> 
> the energies are fine, but the checkvir.out for the water test results in
> the following:
> 
> Vir-ZY           step  23:      -132.302,  step  23:     -130.526
> Vir-YZ           step  24:      -46.1021,  step  24:     -45.3469
> Vir-XZ           step  30:      -3955.79,  step  30:     -3909.04
> Vir-ZX           step  30:      -3953.66,  step  30:     -3908.28
> Vir-ZZ           step  30:      -4260.19,  step  30:     -4381.16
> Vir-XZ           step  31:      -3754.27,  step  31:     -3700.21
> Vir-ZX           step  31:       -3752.9,  step  31:     -3701.78
> Vir-ZZ           step  31:      -3976.42,  step  31:     -4100.35
> Vir-XZ           step  32:       -3234.1,  step  32:     -3170.21
> Vir-ZX           step  32:      -3232.99,  step  32:      -3170.8
> Vir-ZY           step  32:      -522.406,  step  32:     -528.714
> Vir-ZZ           step  32:      -3343.25,  step  32:     -3476.03
> Vir-XY           step  33:        190.88,  step  33:      193.219
> Vir-XZ           step  33:      -2207.41,  step  33:     -2132.02
> Vir-YZ           step  33:      -296.469,  step  33:      -308.25
> Vir-ZX           step  33:       -2207.1,  step  33:     -2130.68
> Vir-ZY           step  33:      -297.242,  step  33:      -308.24
> Vir-ZZ           step  33:      -3395.03,  step  33:      -3528.7
> Vir-XZ           step  34:       -1261.6,  step  34:     -1169.32
> Vir-YZ           step  34:       253.726,  step  34:       241.23
> Vir-ZX           step  34:      -1260.16,  step  34:     -1171.26
> Vir-ZY           step  34:       255.451,  step  34:      240.019
> Vir-ZZ           step  34:      -4326.35,  step  34:     -4443.42
> Vir-XZ           step  35:      -733.406,  step  35:     -628.372
> Vir-YZ           step  35:       984.893,  step  35:      970.402
> Vir-ZX           step  35:      -734.102,  step  35:     -629.179
> Vir-ZY           step  35:       984.288,  step  35:      970.839
> Vir-ZZ           step  35:      -5252.03,  step  35:     -5375.68
> Vir-XZ           step  36:      -563.935,  step  36:     -447.161
> Vir-ZX           step  36:      -562.932,  step  36:     -445.203
> Vir-ZZ           step  36:      -5485.69,  step  36:     -5641.42
> Vir-XY           step  37:       1808.55,  step  37:      1779.78
> Vir-XZ           step  37:      -518.982,  step  37:     -412.322
> Vir-YX           step  37:       1808.47,  step  37:       1780.3
> Vir-YZ           step  37:       1023.48,  step  37:       1050.7
> Vir-ZX           step  37:      -518.936,  step  37:     -412.305
> Vir-ZY           step  37:       1023.99,  step  37:      1051.44
> Vir-ZZ           step  37:      -5184.18,  step  37:     -5410.04
> Vir-XY           step  38:       1039.88,  step  38:         1024
> Vir-XZ           step  38:      -276.865,  step  38:     -193.253
> Vir-YX           step  38:       1039.43,  step  38:      1023.67
> Vir-YZ           step  38:       535.852,  step  38:      632.737
> Vir-ZX           step  38:       -277.38,  step  38:     -192.959
> Vir-ZY           step  38:       535.738,  step  38:      632.855
> Vir-ZZ           step  38:      -4845.03,  step  38:     -5123.82
> Pressure (bar)   step  39:       77135.4,  step  39:      78214.5
> Vir-XY           step  39:       272.697,  step  39:      300.437
> Vir-XZ           step  39:        113.03,  step  39:      134.648
> Vir-YX           step  39:       273.549,  step  39:      300.282
> Vir-YY           step  39:      -12353.4,  step  39:     -12634.1
> Vir-YZ           step  39:      -86.8086,  step  39:      96.9297
> Vir-ZX           step  39:       114.745,  step  39:      135.612
> Vir-ZY           step  39:      -86.5166,  step  39:      98.2657
> Vir-ZZ           step  39:      -4626.46,  step  39:     -4880.27
> Pressure (bar)   step  40:       76118.8,  step  40:      76922.9
> Vir-XY           step  40:       28.5289,  step  40:      90.0801
> Vir-XZ           step  40:       -1032.5,  step  40:     -1186.33
> Vir-YX           step  40:       27.8441,  step  40:      89.0082
> Vir-YY           step  40:      -11921.6,  step  40:     -12276.8
> Vir-YZ           step  40:      -354.577,  step  40:     -80.0877
> Vir-ZX           step  40:      -1031.82,  step  40:     -1185.84
> Vir-ZY           step  40:      -355.184,  step  40:     -79.8926
> Vir-XY           step  41:      -256.858,  step  41:     -58.3765
> Vir-XZ           step  41:      -157.337,  step  41:     -333.937
> Vir-YX           step  41:      -256.052,  step  41:     -57.9436
> Vir-YY           step  41:      -11814.6,  step  41:     -12075.3
> Vir-YZ           step  41:      -393.582,  step  41:     -123.112
> Vir-ZX           step  41:      -157.198,  step  41:     -334.432
> Vir-ZY           step  41:      -393.264,  step  41:     -124.242
> Vir-ZZ           step  41:      -2190.59,  step  41:     -2163.87
> Vir-XX           step  42:      -12342.2,  step  42:     -12485.4
> Vir-XY           step  42:       -529.83,  step  42:     -230.243
> Vir-XZ           step  42:       1382.87,  step  42:      1254.87
> Vir-YX           step  42:      -531.684,  step  42:     -229.925
> Vir-YZ           step  42:      -782.548,  step  42:     -609.416
> Vir-ZX           step  42:       1381.31,  step  42:      1254.65
> Vir-ZY           step  42:      -783.091,  step  42:     -609.663
> Vir-ZZ           step  42:      -601.758,  step  42:      -679.94
> Pressure (bar)   step  43:       59922.1,  step  43:      60705.1
> Vir-XX           step  43:      -10707.8,  step  43:     -10946.3
> Vir-XY           step  43:       -1138.7,  step  43:     -896.666
> Vir-XZ           step  43:       2385.12,  step  43:      2301.16
> Vir-YX           step  43:      -1139.06,  step  43:     -898.088
> Vir-YZ           step  43:       -1426.5,  step  43:        -1367
> Vir-ZX           step  43:       2383.65,  step  43:      2301.23
> Vir-ZY           step  43:       -1426.9,  step  43:     -1366.28
> Vir-ZZ           step  43:       955.955,  step  43:      697.018
> Pressure (bar)   step  44:       51604.7,  step  44:      52918.7
> Vir-XX           step  44:       -8958.9,  step  44:     -9270.15
> Vir-XY           step  44:      -1737.15,  step  44:     -1670.68
> Vir-XZ           step  44:        2492.2,  step  44:      2361.59
> Vir-YX           step  44:      -1737.38,  step  44:     -1671.91
> Vir-YY           step  44:      -4254.76,  step  44:     -4337.05
> Vir-ZX           step  44:       2492.09,  step  44:      2360.84
> Vir-ZZ           step  44:       1750.38,  step  44:      1380.74
> Pressure (bar)   step  45:       45928.5,  step  45:      47411.2
> Vir-XX           step  45:      -7311.26,  step  45:     -7518.85
> Vir-XY           step  45:      -1878.87,  step  45:     -1964.91
> Vir-XZ           step  45:          1869,  step  45:      1760.99
> Vir-YX           step  45:      -1878.59,  step  45:     -1964.57
> Vir-YY           step  45:      -2732.33,  step  45:     -3002.29
> Vir-YZ           step  45:      -1477.76,  step  45:     -1554.38
> Vir-ZX           step  45:       1867.51,  step  45:      1762.29
> Vir-ZY           step  45:      -1479.22,  step  45:        -1554
> Vir-ZZ           step  45:       1713.96,  step  45:      1330.91
> Pressure (bar)   step  46:       42430.9,  step  46:      43616.7
> Vir-XY           step  46:      -2107.65,  step  46:     -2271.88
> Vir-XZ           step  46:       798.872,  step  46:      727.563
> Vir-YX           step  46:      -2109.74,  step  46:      -2272.1
> Vir-YY           step  46:      -1768.94,  step  46:     -2089.67
> Vir-YZ           step  46:      -1332.56,  step  46:     -1408.74
> Vir-ZX           step  46:       800.354,  step  46:      724.807
> Vir-ZY           step  46:      -1330.64,  step  46:     -1409.12
> Vir-ZZ           step  46:       1143.19,  step  46:      852.741
> Vir-XX           step  47:      -5618.44,  step  47:     -5536.34
> Vir-XY           step  47:      -2469.99,  step  47:     -2566.83
> Vir-XZ           step  47:      -326.209,  step  47:     -432.586
> Vir-YX           step  47:      -2470.87,  step  47:      -2567.3
> Vir-YY           step  47:      -1102.94,  step  47:     -1312.51
> Vir-ZX           step  47:      -328.885,  step  47:     -434.294
> Vir-ZZ           step  47:      -20.5518,  step  47:     -72.1807
> Pressure (bar)   step  48:       43223.2,  step  48:      42524.7
> Vir-XX           step  48:      -5354.39,  step  48:     -5143.36
> Vir-XY           step  48:      -2809.38,  step  48:     -2736.35
> Vir-XZ           step  48:      -651.573,  step  48:      -817.92
> Vir-YX           step  48:      -2810.75,  step  48:     -2734.92
> Vir-YY           step  48:      -1143.24,  step  48:     -1095.92
> Vir-YZ           step  48:      -1053.42,  step  48:     -930.663
> Vir-ZX           step  48:      -651.381,  step  48:     -817.185
> Vir-ZY           step  48:      -1054.32,  step  48:     -931.654
> Vir-ZZ           step  48:      -1973.21,  step  48:     -1774.21
> Pressure (bar)   step  49:       46073.2,  step  49:      44880.8
> Vir-XX           step  49:      -6020.39,  step  49:     -5770.05
> Vir-XY           step  49:       -2904.9,  step  49:     -2625.09
> Vir-XZ           step  49:      -77.2606,  step  49:     -351.229
> Vir-YX           step  49:      -2903.51,  step  49:     -2623.71
> Vir-YY           step  49:      -1061.57,  step  49:     -957.809
> Vir-YZ           step  49:      -1163.56,  step  49:     -917.527
> Vir-ZX           step  49:      -76.4861,  step  49:     -350.882
> Vir-ZY           step  49:      -1163.53,  step  49:     -918.895
> Vir-ZZ           step  49:      -3378.99,  step  49:     -3031.39
> Pressure (bar)   step  50:       46893.3,  step  50:      44950.2
> Vir-XX           step  50:      -6211.69,  step  50:     -6027.86
> Vir-XY           step  50:      -2423.21,  step  50:     -1865.56
> Vir-XZ           step  50:       667.327,  step  50:      480.726
> Vir-YX           step  50:      -2422.22,  step  50:     -1865.69
> Vir-YY           step  50:      -3194.86,  step  50:      -2817.2
> Vir-YZ           step  50:       -2208.7,  step  50:     -2647.63
> Vir-ZX           step  50:       667.878,  step  50:      481.076
> Vir-ZY           step  50:      -2207.77,  step  50:     -2648.09
> Vir-ZZ           step  50:      -1482.41,  step  50:     -967.051
> 
> I just wanted to be sure that these diverging errors are actually errors in
> the test, (especially since I got NO such errors on the MacBook install of
> the exact same source files.)

Yes, that does look normal. These tests fail because MD is intrinsically 
irreproducible across architectures, and the virial components are about 
the most sensitive parts. A difference that is large enough to exceed 
the tolerances in gmxtest is inevitable, and once such a difference is 
observed, others will snowball.

Testing with double-precision (./configure --enable-double and 
./gmxtest.pl -double) can reduce the incidence of such reported 
failures, which might ease your mind somewhat.

Mark



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