[aspect-devel] convection-box-3d example hangs when more than one node is used

Robert Moucha rmoucha at gmail.com
Fri Jul 17 15:23:05 PDT 2015


Hi Timo,

Yes I still have the same problem. It occurs with the following cook
books (have not tried all, but it looks like anything to do with time
stepping is causing the hang):

convection-box
convection-box-3d
shell_simple_2d
van-keken-discontinuous

Thanks
Rob

> Hey Robert,
>
> sorry for only getting back to this now. Any update on your problem?
> Does this happen with every .prm file (like a simple 2d problem)?
>
> On Sun, Jul 5, 2015 at 6:10 PM, Robert Moucha <rmoucha at gmail.com> wrote:
>> OK, it appears that I solved last-weeks issue with the files, turns
>> out one of the nodes did not have the correct paths (thanks).
>>
>> However, now I am still having problems when using more than one node,
>> this time ASPECT just hangs on time step 1, no error, the
>> solution-00000 files are created on each of the nodes than nothing.
>>
>> It runs fine on a single node. I should point out that the ASPECT
>> example stokes.prm as well as Citcoms runs on the cluster without
>> issues.
>>
>> Here is the log.txt for the convection-box-3d.prm -- thanks in advance Rob
>>
>> -----------------------------------------------------------------------------
>> -- This is ASPECT, the Advanced Solver for Problems in Earth's ConvecTion.
>> --     . version 1.3
>> --     . running in OPTIMIZED mode
>> --     . running with 12 MPI processes
>> --     . using Trilinos
>> -----------------------------------------------------------------------------
>>
>> Number of active cells: 512 (on 4 levels)
>> Number of degrees of freedom: 20381 (14739+729+4913)
>>
>> *** Timestep 0:  t=0 seconds
>>    Solving temperature system... 0 iterations.
>>    Rebuilding Stokes preconditioner...
>>    Solving Stokes system... 29 iterations.
>>
>> Number of active cells: 1583 (on 5 levels)
>> Number of degrees of freedom: 63622 (46077+2186+15359)
>>
>> *** Timestep 0:  t=0 seconds
>>    Solving temperature system... 0 iterations.
>>    Rebuilding Stokes preconditioner...
>>    Solving Stokes system... 30+4 iterations.
>>
>> Number of active cells: 3256 (on 5 levels)
>> Number of degrees of freedom: 122269 (88647+4073+29549)
>>
>> *** Timestep 0:  t=0 seconds
>>    Solving temperature system... 0 iterations.
>>    Rebuilding Stokes preconditioner...
>>    Solving Stokes system... 30+4 iterations.
>>
>> Number of active cells: 9010 (on 6 levels)
>> Number of degrees of freedom: 333145 (241677+10909+80559)
>>
>> *** Timestep 0:  t=0 seconds
>>    Solving temperature system... 0 iterations.
>>    Rebuilding Stokes preconditioner...
>>    Solving Stokes system... 30+4 iterations.
>>
>>    Postprocessing:
>>      RMS, max velocity:                  57.6 m/s, 176 m/s
>>      Temperature min/avg/max:            0 K, 0.5 K, 1 K
>>      Heat fluxes through boundary parts: 7.682e-07 W, -7.682e-07 W,
>> 1.685e-15 W, 2.362e-15 W, -1 W, 1 W
>>      Writing graphical output:
>> /state/partition1/RMOUCHA/output/solution-00000
>>
>> *** Timestep 1:  t=8.87115e-05 seconds
>>
>>
>> ------------------------------------------------------------
>> Robert Moucha
>> Assistant Professor of Geophysics
>> Department of Earth Sciences
>> 204 Heroy Geology Lab
>> Syracuse University
>> Syracuse, NY, 13244-1070
>> _______________________________________________
>> Aspect-devel mailing list
>> Aspect-devel at geodynamics.org
>> http://lists.geodynamics.org/cgi-bin/mailman/listinfo/aspect-devel
>
>
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-- 
------------------------------------------------------------
Robert Moucha
Assistant Professor of Geophysics
Department of Earth Sciences
204 Heroy Geology Lab
Syracuse University
Syracuse, NY, 13244-1070


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