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-   -   Killed by signal 8 after first timestep (http://www.cfd-online.com/Forums/openfoam-solving/60392-killed-signal-8-after-first-timestep.html)

matthias December 9, 2005 09:06

Hi, i have already compiled
 
Hi,

i have already compiled OpenFOAM on a decAlpha with tru64 and MPICH2.
Now, i get several errors, when i run e.g. simpleFoam on a Mesh with ~750000 cells.

5: [5] Case : rans
5: [5] Nprocs : 6
0: Reading field p
0:
0: Reading field U
0:
0: Reading/calculating face flux field phi
0:
0: Selecting incompressible transport model Newtonian
0: Selecting turbulence model kEpsilon
0:
0: Starting time loop
0:
0: Time = 1
0:
0: BICCG: Solving for Ux, Initial residual = 1, Final residual = 0.000590631, No Iterations 1
0: BICCG: Solving for Uy, Initial residual = 1, Final residual = 0.000505842, No Iterations 1
0: BICCG: Solving for Uz, Initial residual = 1, Final residual = 0.000449929, No Iterations 1
0: ICCG: Solving for p, Initial residual = 1, Final residual = 0.00997279, No Iterations 134
0: ICCG: Solving for p, Initial residual = 0.00894237, Final residual = 8.40657e-05, No Iterations 107
0: ICCG: Solving for p, Initial residual = 0.00318344, Final residual = 3.1132e-05, No Iterations 109
0: time step continuity errors : sum local = 0.0359926, global = -0.000188972, cumulative = -0.000188972
rank 2 in job 2 wsp05.fms.uni-rostock.de_1525 caused collective abort of all ranks
exit status of rank 2: killed by signal 8
rank 3 in job 2 wsp05.fms.uni-rostock.de_1525 caused collective abort of all ranks
exit status of rank 3: killed by signal 8
rank 4 in job 2 wsp05.fms.uni-rostock.de_1525 caused collective abort of all ranks
exit status of rank 4: killed by signal 8
rank 5 in job 2 wsp05.fms.uni-rostock.de_1525 caused collective abort of all ranks
exit status of rank 5: killed by signal 8
rank 1 in job 2 wsp05.fms.uni-rostock.de_1525 caused collective abort of all ranks
exit status of rank 1: killed by signal 8

The mpd process is started perfectly on every machine, when i run mpdtrace, then it shows the workstations.

If i decompose the mesh into 12 regions, then i get an error like this,

...
new cannot satisfy memory request, this ...

on ervery machine and i don't know why. Because of this i have to decompose in less regions; by the error at the beginning of the post i took 6 processors.

So, my questions are:

What do these errors mean?
How can i solve them, then i would like to take more than 6 processors. However it has to work with 6 ones first before i can switch up.

mfg,
Matthias


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