[Pw_forum] Error: ...excited on signal 9 (killed)

[Ilya Ryabinkin]

Try fewer MPI threads (-np parameter) than 8 or compile with openmp and set
-np 1 but play with OMP_NUM_THREADS environmental variable.

Overall, seems like you have problems with memory per MPI process -- it's
hard to say without knowing of the details of your calculations.
Ultimately, you might NOT be able to complete calculations on your machine
-- you'll need to go to a small cluster, e.g. 32 nodes each of those has,
let say, 32-64 GiB of RAM

--
Ilya

On Sat, Dec 23, 2017 at 1:58 AM, Amar Singh <amarsingh122014 at rediffmail.com>
wrote:

> Dear Friends,
> ​I am trying a vc-relax on a 320 atom supercell on a 40 processor/256 GB
> RAM system. As soon as the first iteration starts, run is terminated with
> following message.
> *mpi has noticed that process rank 14 with PID 25185 n node Linux-mix
> excited on signal 9 (killed).*
>
> ​With increasing numbers of processors (8 - 160), "Estimated total
> allocated dynamic RAM" is increasing and reached to >450 GB. But problem
> remains same, and run fails with same error message. Besides, for smaller
> supercells (10 - 40 atoms), this problem does not appear at all.
> Will appreciate any suggestion. Thanks Amar
>
>
>
>
>
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> Pw_forum at pwscf.org
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>



-- 
*******************************************************
                    Ilya Ryabinkin
                 Postdoctoral Scholar
          Physical and Environmental Sciences
           University of Toronto Scarborough
  http://www.utsc.utoronto.ca/~aizmaylov/Members.html
*******************************************************
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