Error in run with mesh phantom

Running and Runtime Errors
1

Dear experts,

I tried to run the mesh phantom for AP exposure, but the simulation got frozen and the following is printed in the log file. Can you please guide regarding the error? I have observed two things

  1. The freezing issue and the error are appearing when I am using more than one spawn.
  2. If no spawn is used, it ran (tested with lower history). However, the usrbin ouput showed single value (attached), instead of all the regions. Do I need to score different variable for mesh phantom?

Regards,

Riya

testMesh_04001.log (2.6 KB)

source_newgen.f (20.9 KB)

1
11331×855 51 KB

2
2995×182 26.5 KB

3

Hi @riya

from the backtrace it seems it is a system error running low in memory.

Could you please share your input file so we can check

V.

4

Dear @vasilis ,

Thank you for the guidance. I could run the input smoothly on a higher RAM machine with more cores in it.

Regards,

Riya

5

You have to be careful with the meshes, they are memory eaters. If you look the output of FLUKA or flair it will report that for the phantom it needs about 1.7Gb or RAM plus you need about 1Gb for FLUKA and several 100Mb for the neutron XS.

More over if you launch though flair, flair will need the same memory for loading the UMESH

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