[Nek5000-users] help

nek5000-users at lists.mcs.anl.gov nek5000-users at lists.mcs.anl.gov
Mon Feb 8 04:05:51 CST 2016


Hi neks,
i need your help to understand what happen during my simulations runs.

1) - I start a new sim and set the iotime to 2.00 s in .rea file and all 
work correctly.
       Now I restart my sim from the last file wrote before, and I see 
it run but it doesn't write new files.
       If  I drop the iotime to,for example, 0.5s,the sim go on and 
write more than four files.
       So why if I set iotime equal 2s nek5000 doesn't write anything 
and if I set  iotime to 0.5 nek
       write correctly over 2s?
      This is the last screen printed:

  Solving for fluid T T T
        2307    PRES alph1n  2.4872E-01  1.0591E-01  2.3483E+00     1
        2307    PRES halpha     1  1.9233E-02
      2307 PRES gmres:    5  8.8294E-06  1.0000E-05  1.5316E-04 
2.1182E+00  2.7194E+00    F
     2307  1  2.8670E-01  1.7757E-03  1.6146E+02   5 alph1x
   2307 halpha   5  1.1392E-01  6.4126E-02  1.9957E-02  1.3173E-02 
7.5946E-03
        2307    Hmholtz VELX:      4   7.7538E-09   1.7757E-03 1.0000E-08
     2307  2  2.9984E-01  9.8403E-04  3.0471E+02   5 alph1x
   2307 halpha   5  1.1120E-01  7.9115E-02  2.6727E-02  7.0552E-03 
2.0218E-03
        2307    Hmholtz VELY:      4   5.3019E-09   9.8403E-04 1.0000E-08
     2307  3  3.3424E-01  9.4197E-04  3.5483E+02   5 alph1x
   2307 halpha   5  1.2703E-01  8.4245E-02  2.8403E-02  7.2785E-03 
1.9445E-03
        2307    Hmholtz VELZ:      4   5.1587E-09   9.4197E-04 1.0000E-08
                L1/L2 DIV(V)    :  -2.5232E-17   8.1201E-03
                L1/L2 QTL       :   0.0000E+00   0.0000E+00
                L1/L2 DIV(V)-QTL:  -2.5232E-17   8.1201E-03
        2307   9.1310E+01  7.0010E+00 Fluid done
Step   2308, t= 9.1319540E+01, DT= 1.0000000E-02, C=  0.348 2.0401E+04 
7.4189E+00
  Solving for fluid T T T
        2308    PRES alph1n  2.5051E-01  1.0694E-01  2.3425E+00     2
        2308    PRES halpha     2  1.8189E-02  6.7561E-03
      2308 PRES gmres:    5  8.0852E-06  1.0000E-05  1.5471E-04 
2.5837E+00  3.1443E+00    F
     2308  1  2.8670E-01  1.1724E-03  2.4453E+02   6 alph1x
   2308 halpha   6  1.0646E-01  7.2246E-02  2.5549E-02  1.6177E-02 
1.5435E-02  3.6983E-03
        2308    Hmholtz VELX:      4   7.6167E-09   1.1724E-03 1.0000E-08
     2308  2  2.9981E-01  6.6475E-04  4.5101E+02   6 alph1x
   2308 halpha   6  1.0042E-01  8.8049E-02  3.7024E-02  1.2498E-02 
4.7047E-03  2.0487E-03
        2308    Hmholtz VELY:      4   5.6393E-09   6.6475E-04 1.0000E-08
     2308  3  3.3420E-01  6.6358E-04  5.0363E+02   6 alph1x
   2308 halpha   6  1.1612E-01  9.4096E-02  3.9493E-02  1.3028E-02 
4.5878E-03  1.9661E-03
        2308    Hmholtz VELZ:      4   5.2639E-09   6.6358E-04 1.0000E-08


2) - Another strange thing is the following:
        i run a simulation, it go on till name0.f000XX file. I restart 
the same simulation from name0.f000XX but Nek5000 is stucks in the 
following screen:

  Beginning session:
/datastor/eng/gualtieri/SIMULATIONS_NEK/RIB_3D_109/curve.rea


  timer accuracy:   9.5367432E-08 sec

  read .rea file
  nelgt/nelgv/lelt:      395328      395328        6200
  lx1  /lx2  /lx3 :           4           4           4

  mapping elements to processors
            0        6177        6177      395328      395328  NELV
            1        6177        6177      395328      395328  NELV
            2        6177        6177      395328      395328  NELV
            3        6177        6177      395328      395328  NELV
            4        6177        6177      395328      395328  NELV
            5        6177        6177      395328      395328  NELV
            6        6177        6177      395328      395328  NELV
            7        6177        6177      395328      395328  NELV
           10        6177        6177      395328      395328  NELV
           11        6177        6177      395328      395328  NELV
           12        6177        6177      395328      395328  NELV
           13        6177        6177      395328      395328  NELV
           14        6177        6177      395328      395328  NELV
           15        6177        6177      395328      395328  NELV
            8        6177        6177      395328      395328  NELV
            9        6177        6177      395328      395328  NELV
           32        6177        6177      395328      395328  NELV
           33        6177        6177      395328      395328  NELV
           23        6177        6177      395328      395328  NELV
           34        6177        6177      395328      395328  NELV
           24        6177        6177      395328      395328  NELV
           35        6177        6177      395328      395328  NELV
           25        6177        6177      395328      395328  NELV
           36        6177        6177      395328      395328  NELV
           26        6177        6177      395328      395328  NELV
           37        6177        6177      395328      395328  NELV
           27        6177        6177      395328      395328  NELV
           38        6177        6177      395328      395328  NELV
           28        6177        6177      395328      395328  NELV
           39        6177        6177      395328      395328  NELV
           29        6177        6177      395328      395328  NELV
           40        6177        6177      395328      395328  NELV
           30        6177        6177      395328      395328  NELV
           41        6177        6177      395328      395328  NELV
           31        6177        6177      395328      395328  NELV
           42        6177        6177      395328      395328  NELV
           16        6177        6177      395328      395328  NELV
           43        6177        6177      395328      395328  NELV
           17        6177        6177      395328      395328  NELV
           44        6177        6177      395328      395328  NELV
           18        6177        6177      395328      395328  NELV
           45        6177        6177      395328      395328  NELV
           19        6177        6177      395328      395328  NELV
           46        6177        6177      395328      395328  NELV
           20        6177        6177      395328      395328  NELV
           47        6177        6177      395328      395328  NELV
           21        6177        6177      395328      395328  NELV
           22        6177        6177      395328      395328  NELV
           60        6177        6177      395328      395328  NELV
           61        6177        6177      395328      395328  NELV
           62        6177        6177      395328      395328  NELV
           63        6177        6177      395328      395328  NELV
           48        6177        6177      395328      395328  NELV
           49        6177        6177      395328      395328  NELV
           50        6177        6177      395328      395328  NELV
           51        6177        6177      395328      395328  NELV
           52        6177        6177      395328      395328  NELV
           53        6177        6177      395328      395328  NELV
           54        6177        6177      395328      395328  NELV
           55        6177        6177      395328      395328  NELV
           56        6177        6177      395328      395328  NELV
           57        6177        6177      395328      395328  NELV
           58        6177        6177      395328      395328  NELV
           59        6177        6177      395328      395328  NELV
  element load imbalance:            0        6177        6177
  done :: mapping elements to processors

            0  objects found
  done :: read .rea file    25.415     sec

  setup mesh topology
    Right-handed check complete for  395328 elements. OK.
    setvert3d:   4     7585356    10747980     7585356     7585356
  call usrsetvert
  done :: usrsetvert

gs_setup: 534804 unique labels shared


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