On 9/12/23 23:29, Ananya Bijaya wrote:
I have installed Dealii 9.4.2 using "spack install dealii" on Ubuntu 20.04
inside WSL. When I try to mpirun step-17 and step-18 I either encounter an
error message (attached at the end) when the number of cores is more than two
or for two cores the memory consumption is huge. In my case, the entire 48 gb
of my laptop is getting used.
From the online discussions, I gather this is because of METIS installation.
How do I fix it?
Ananya,
I must admit that I don't know. The error code -3 corresponds to
METIS_ERROR_MEMORY = -3, /*!< Returned due to insufficient memory */
which is perhaps not surprising given that something is trying to allocate 103
TB of memory.
I tried step-17, and it works on my system. So this must be something specific
to Windows. How exactly are you calling the program? With MPI via mpirun? I
don't have experience with running MPI on Windows, but would have assumed that
this is generally not a great idea.
Best
Wolfgang
--
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Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
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