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

Robert Moucha rmoucha at gmail.com
Sun Jul 5 15:10:51 PDT 2015


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


More information about the Aspect-devel mailing list