[Nek5000-users] Example 'turbChannel' Emergency exit
nek5000-users at lists.mcs.anl.gov
nek5000-users at lists.mcs.anl.gov
Wed Apr 14 07:42:46 CDT 2010
Fred,
we can reproduce your problem and we try to come up with a solution soon.
Stefan
On Apr 14, 2010, at 10:37 AM, nek5000-users at lists.mcs.anl.gov wrote:
> Hi Fred,
>
> please attach a full logfile.
>
> Stefan
>
>
> On Apr 14, 2010, at 10:25 AM, nek5000-users at lists.mcs.anl.gov wrote:
>
>> Hello NEKs,
>>
>> in the last day I had a couple of problems with my runs, so I started again the turbChannel example on our machine to get a better feeling for the parameters. When I run the turbChannel example, the run stopped after 5172 time steps with an 'emergency exit' cause the CFL number is getting to high. Do you know from where does this occur?? I just added the output of the last time steps.
>>
>> Best,
>> Fred
>>
>>
>> 5165 2.582500000E+01 3.916990657E-03 1.659821813E-03 3.694680560E-01 e2
>> Step 5166, t= 2.5830000E+01, DT= 5.0000000E-03, C= 2.079 3.4805E+04 1.3937E+01
>> Solving for fluid
>> 5166 PRES alph1n 8.7741E+02 4.2415E+01 2.0687E+01 20
>> 5166 PRES halpha 20 1.1643E+01 -3.7137E+00 3.6211E-01 -2.0448E-01 -1.6916E+00 8.2524E-01 1.1625E+00 8.9342E-01 -1.6984E-01 -2.2222E-01
>>
>> 5166 PRES gmres: 75 8.8674E-06 1.0000E-05 8.5433E-02 4.1833E+00 9.7743E+00
>> 5166 Hmholtz VELX: 11 1.5456E-09 1.0149E+00 1.0000E-08
>> 5166 Hmholtz VELY: 11 3.0012E-09 1.9688E+00 1.0000E-08
>> 5166 Hmholtz VELZ: 11 2.5093E-09 1.8625E+00 1.0000E-08
>> L1/L2 DIV(V) : 4.9352E-18 9.2917E-01
>> L1/L2 QTL : 0.0000E+00 0.0000E+00
>> L1/L2 DIV(V)-QTL: 4.9352E-18 9.2917E-01
>> WARNING: DIV(V)-QTL too large!
>> 5166 2.5830E+01 1.3669E+01 Fluid done
>> Calculating eddy visosity
>> 5166 2.583000000E+01 3.926052513E-03 1.662276122E-03 3.689963050E-01 e2
>> Step 5167, t= 2.5835000E+01, DT= 5.0000000E-03, C= 2.889 3.4820E+04 1.4982E+01
>> Solving for fluid
>> 5167 PRES alph1n 1.5542E+03 7.1980E+02 2.1591E+00 1
>> 5167 PRES halpha 1 1.4480E+01
>> 5167 PRES gmres: 86 9.7160E-06 1.0000E-05 9.3445E-01 4.7986E+00 1.1231E+01
>> 5167 Hmholtz VELX: 12 5.8389E-09 1.3413E+00 1.0000E-08
>> 5167 Hmholtz VELY: 13 3.9482E-09 2.9638E+00 1.0000E-08
>> 5167 Hmholtz VELZ: 13 3.5924E-09 2.6194E+00 1.0000E-08
>> L1/L2 DIV(V) : 3.1068E-18 1.2785E+00
>> L1/L2 QTL : 0.0000E+00 0.0000E+00
>> L1/L2 DIV(V)-QTL: 3.1068E-18 1.2785E+00
>> WARNING: DIV(V)-QTL too large!
>> 5167 2.5835E+01 1.5275E+01 Fluid done
>> Calculating eddy visosity
>> 5167 2.583500000E+01 3.993359862E-03 1.664692380E-03 3.685384235E-01 e2
>> Step 5168, t= 2.5840000E+01, DT= 5.0000000E-03, C= 3.423 3.4837E+04 1.6588E+01
>> Solving for fluid
>> 5168 PRES alph1n 3.9778E+03 3.8710E+03 1.0276E+00 2
>> 5168 PRES halpha 2 1.2944E+01 6.2999E-01
>> 5168 PRES gmres: 79 9.2196E-06 1.0000E-05 4.3331E+00 4.4083E+00 1.0437E+01
>> 5168 Hmholtz VELX: 14 4.7243E-09 2.0176E+00 1.0000E-08
>> 5168 Hmholtz VELY: 14 6.8219E-09 4.6788E+00 1.0000E-08
>> 5168 Hmholtz VELZ: 15 1.8252E-09 4.0913E+00 1.0000E-08
>> L1/L2 DIV(V) : -1.4831E-18 2.0942E+00
>> L1/L2 QTL : 0.0000E+00 0.0000E+00
>> L1/L2 DIV(V)-QTL: -1.4831E-18 2.0942E+00
>> WARNING: DIV(V)-QTL too large!
>> 5168 2.5840E+01 1.4678E+01 Fluid done
>> Calculating eddy visosity
>> 5168 2.584000000E+01 4.200707570E-03 1.667064185E-03 3.681057305E-01 e2
>> Step 5169, t= 2.5845000E+01, DT= 5.0000000E-03, C= 5.530 3.4853E+04 1.5991E+01
>> Solving for fluid
>> 5169 PRES alph1n 7.2030E+03 3.1162E+03 2.3115E+00 3
>> 5169 PRES halpha 3 -6.0424E+01 -1.0653E+01 -8.4291E+00
>> 5169 PRES gmres: 97 9.6453E-06 1.0000E-05 3.9350E+00 5.4119E+00 1.2493E+01
>> 5169 Hmholtz VELX: 11 4.1711E-09 1.9124E+00 1.0000E-08
>> 5169 Hmholtz VELY: 11 7.0818E-09 3.3758E+00 1.0000E-08
>> 5169 Hmholtz VELZ: 11 9.3833E-09 4.3104E+00 1.0000E-08
>> L1/L2 DIV(V) : 5.4916E-18 2.0864E+00
>> L1/L2 QTL : 0.0000E+00 0.0000E+00
>> L1/L2 DIV(V)-QTL: 5.4916E-18 2.0864E+00
>> WARNING: DIV(V)-QTL too large!
>> 5169 2.5845E+01 1.6361E+01 Fluid done
>> Calculating eddy visosity
>> 5169 2.584500000E+01 4.167598852E-03 1.701730652E-03 3.676193877E-01 e2
>> Step 5170, t= 2.5850000E+01, DT= 5.0000000E-03, C= 6.006 3.4871E+04 1.7673E+01
>> Solving for fluid
>> 5170 PRES alph1n 3.8504E+03 2.1151E+03 1.8205E+00 4
>> 5170 PRES halpha 4 -4.5903E+00 2.8727E+00 1.4775E+00 -3.0313E+01
>> 5170 PRES gmres: 95 9.5031E-06 1.0000E-05 2.9323E+00 5.3008E+00 1.2248E+01
>> 5170 Hmholtz VELX: 11 2.9823E-09 2.3489E+00 1.0000E-08
>> 5170 Hmholtz VELY: 11 5.2939E-09 5.2327E+00 1.0000E-08
>> 5170 Hmholtz VELZ: 11 8.5864E-09 6.0722E+00 1.0000E-08
>> L1/L2 DIV(V) : -1.3376E-19 1.6752E+00
>> L1/L2 QTL : 0.0000E+00 0.0000E+00
>> L1/L2 DIV(V)-QTL: -1.3376E-19 1.6752E+00
>> WARNING: DIV(V)-QTL too large!
>> 5170 2.5850E+01 1.6120E+01 Fluid done
>> Calculating eddy visosity
>> 5170 2.585000000E+01 4.085734913E-03 1.716209642E-03 3.671058529E-01 e2
>> Step 5171, t= 2.5855000E+01, DT= 5.0000000E-03, C= 4.227 3.4888E+04 1.7434E+01
>> Solving for fluid
>> 5171 PRES alph1n 5.0358E+03 1.2448E+03 4.0456E+00 5
>> 5171 PRES halpha 5 -6.9028E+00 -1.4184E+00 -4.2028E+01 -1.2786E+01 -2.1059E+01
>> 5171 PRES gmres: 92 9.4249E-06 1.0000E-05 1.6822E+00 5.1338E+00 1.1887E+01
>> 5171 Hmholtz VELX: 11 2.1456E-09 2.9780E+00 1.0000E-08
>> 5171 Hmholtz VELY: 11 5.3606E-09 7.0811E+00 1.0000E-08
>> 5171 Hmholtz VELZ: 11 5.8359E-09 6.8710E+00 1.0000E-08
>> L1/L2 DIV(V) : -1.6210E-17 3.1098E+00
>> L1/L2 QTL : 0.0000E+00 0.0000E+00
>> L1/L2 DIV(V)-QTL: -1.6210E-17 3.1098E+00
>> WARNING: DIV(V)-QTL too large!
>> 5171 2.5855E+01 1.5761E+01 Fluid done
>> Calculating eddy visosity
>> 5171 2.585500000E+01 4.389947285E-03 1.720108719E-03 3.665677180E-01 e2
>> Step 5172, t= 2.5860000E+01, DT= 5.0000000E-03, C= 14.041 3.4905E+04 1.7076E+01
>> Solving for fluid
>> 5172 PRES alph1n 9.0973E+04 3.3755E+04 2.6951E+00 6
>> 5172 PRES halpha 6 -5.1818E+02 -1.4428E+02 -8.2239E+02 -5.2616E+01 6.5613E+01 2.1168E+02
>> 5172 PRES gmres: 132 9.6516E-06 1.0000E-05 4.3975E+01 7.3637E+00 1.7181E+01
>> 5172 Hmholtz VELX: 32 8.9325E-09 4.2902E+01 1.0000E-08
>> 5172 Hmholtz VELY: 33 6.7432E-09 1.0998E+02 1.0000E-08
>> 5172 Hmholtz VELZ: 33 8.7122E-09 9.2142E+01 1.0000E-08
>> L1/L2 DIV(V) : -4.3714E-18 1.8897E+01
>> L1/L2 QTL : 0.0000E+00 0.0000E+00
>> L1/L2 DIV(V)-QTL: -4.3714E-18 1.8897E+01
>> WARNING: DIV(V)-QTL too large!
>> 5172 2.5860E+01 2.3473E+01 Fluid done
>> Calculating eddy visosity
>> 5172 2.586000000E+01 4.640317048E-02 1.721776888E-03 3.660847580E-01 e2
>> CFL, Ctarg! 77.0972671240189 2.00000000000000
>>
>> 5173 2.5860E+01 Write checkpoint:
>>
>> 5173 2.5860E+01 OPEN: turbChannel.fld06
>>
>> 1 Emergency exit: 5173 time = 25.8599999999991
>> Latest solution and data are dumped for post-processing.
>> *** STOP ***
>>
>> 0 Emergency exit: 5173 time = 25.8599999999991
>> Latest solution and data are dumped for post-processing.
>> *** STOP ***
>> 0 opcount 7939907566848.00
>> 1 opcount 7939907566848.00
>> TOTAL OPCOUNT 15879815133696.0
>> opnode 0 subcl4 0.000000 0
>> opnode 0 ascol5 0.000000 0
>> opnode 0 invcl3 0.1355809E+10 10344
>> opnode 0 vlsum 0.1355809E+10 2648064
>> opnode 0 inver2 0.1355809E+10 10344
>> opnode 0 cadd2 0.2033713E+10 15516
>> opnode 0 admcol 0.2033713E+10 5172
>> opnode 0 invcl1 0.2033713E+10 15516
>> opnode 0 vsqrt 0.3389915E+10 2663583
>> opnode 0 opa2cl 0.4067426E+10 5172
>> opnode 0 subcl3 0.4067426E+10 15516
>> opnode 0 sub3 0.4747952E+10 37499
>> opnode 0 sub2 0.1152359E+11 8001078
>> opnode 0 opcv3c 0.1219992E+11 15513
>> opnode 0 add3s2 0.1220228E+11 31032
>> opnode 0 VLSC2 0.1285580E+11 49041
>> opnode 0 cadd 0.1391945E+11 106197
>> opnode 0 invcl2 0.1423639E+11 19891515
>> opnode 0 opcolv 0.2643827E+11 67236
>> opnode 0 add2s1 0.2927781E+11 111686
>> opnode 0 glsc2 0.3054948E+11 116537
>> opnode 0 ADD3 0.3129265E+11 61118464
>> opnode 0 cmult 0.4078676E+11 64159596
>> opnode 0 addcl4 0.4189481E+11 106544
>> opnode 0 col3 0.6824224E+11 32173287
>> opnode 0 ADD2 0.8181750E+11 85243418
>> opnode 0 glsc3 0.8983806E+11 228470
>> opnode 0 addcl3 0.1057688E+12 63724056
>> opnode 0 col2 0.2130625E+12 254874963
>> opnode 0 add2s2 0.3703272E+12 1412686
>> opnode 0 VLSC3 0.4606404E+12 1171469
>> opnode 0 mxm 0.6246592E+13 -1613811570
>> total time 34934.7607588768 34931.1205290364
>> copy time 0 0.000000000000000E+000 0.000000000000000E+000
>> mxmf time 0 0.000000000000000E+000 0.000000000000000E+000
>> inv3 time 10344 15.3735277652740 4.401097798307057E-004
>> invc time 19891515 146.002576589584 4.179727829464278E-003
>> mltd time 62064 4038.74821758270 0.115620345308577
>> cdtp time 15516 437.695099830627 1.253023359118396E-002
>> eslv time 0 0.000000000000000E+000 0.000000000000000E+000
>> pres time 5172 14242.1249115467 0.407720241888833
>> crsl time 90681 47.9217271804810 1.371892068009847E-003
>> crsl min 47.9217271804810
>> crsl max 53.2970800399780
>> crsl avg 50.6094036102295
>> hmhz time 15521 15087.4339959621 0.431919553895237
>> usbc time 5173 85.1574075222015 2.437866470713835E-003
>> axhm time 238766 6975.35609674454 0.199688873162437
>> advc time -1333526528 2.332305834658064E-310 6.676870938527185E-315
>> gop time 878153 62.8719458580017 1.799883453659598E-003
>> gop min 62.8719387054443
>> gop max 118.545093774796
>> gop avg 90.7085191011429
>> vdss time 25861 108.827995061874 3.115502549407525E-003
>> vdss min 108.827995061874
>> vdss max 108.830206155777
>> vdss avg 108.829100608826
>> dsum time 334612 471.267515897751 1.349133691563118E-002
>> dsum min 440.130956649780
>> dsum max 471.267515897751
>> dsum avg 455.699236273766
>> gsum time 0 0.000000000000000E+000 0.000000000000000E+000
>> dsnd time 0 0.000000000000000E+000 0.000000000000000E+000
>> dadd time 0 0.000000000000000E+000 0.000000000000000E+000
>> dsmx time 0 0.154825925827026 4.432320620757866E-006
>> dsmn time 0 1.043796539306641E-003 2.988156473363023E-008
>> slvb time 0 0.000000000000000E+000 0.000000000000000E+000
>> ddsl time 0 0.000000000000000E+000 0.000000000000000E+000
>> solv time 0 0.000000000000000E+000 0.000000000000000E+000
>> sett time 0 0.000000000000000E+000 0.000000000000000E+000
>> prep time 5173 12.7582430839539 3.652400178044276E-004
>> bsol time 0 0.000000000000000E+000 0.000000000000000E+000
>> bso2 time 0 0.000000000000000E+000 0.000000000000000E+000
>> # nid tusbc tdadd tcrsl tvdss tdsum tgop qqq
>> 0 8.5157E+01 0.0000E+00 4.7922E+01 1.0883E+02 4.7127E+02 6.2872E+01 qqq
>> 1 8.8959E+01 0.0000E+00 5.3297E+01 1.0883E+02 4.4013E+02 1.1855E+02 qqq
>>
>> call exitt: dying ...
>>
>> backtrace(): obtained 11 stack frames.
>> /data2/DATEN/frederik/nek5/examples/turbChannel/nek5000(print_stack_+0x26) [0x5d34ca]
>> /data2/DATEN/frederik/nek5/examples/turbChannel/nek5000(exitt_+0x34e) [0x6eb7ce]
>> /data2/DATEN/frederik/nek5/examples/turbChannel/nek5000(emerxit_+0x63c) [0x52deaa]
>> /data2/DATEN/frederik/nek5/examples/turbChannel/nek5000(setdt_+0xc9a) [0x52098a]
>> /data2/DATEN/frederik/nek5/examples/turbChannel/nek5000(settime_+0xb7) [0x4210a1]
>> /data2/DATEN/frederik/nek5/examples/turbChannel/nek5000(nek_advance_+0x27) [0x41d185]
>> /data2/DATEN/frederik/nek5/examples/turbChannel/nek5000(nek_solve_+0x2d1) [0x41d0d3]
>> /data2/DATEN/frederik/nek5/examples/turbChannel/nek5000(MAIN__+0x3b) [0x41bfaf]
>> /data2/DATEN/frederik/nek5/examples/turbChannel/nek5000(main+0x3c) [0x415b8c]
>> /lib/libc.so.6(__libc_start_main+0xda) [0x2aef191be4ca]
>> /data2/DATEN/frederik/nek5/examples/turbChannel/nek5000(for_write_seq_fmt_xmit+0x3a) [0x415aba]
>>
>> total elapsed time : 3.49348E+04 sec
>> total solver time incl. I/O : 3.49051E+04 sec
>> time/timestep : 6.74756E+00 sec
>> CPU seconds/timestep/DOF : 7.82568E-05 sec
>>
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