Hello, Usage I use FEniCS 2019 in the original docker image quay.io/fenicsproject/stable:current to assemble an eigenvalue problem with sparse matrices, export it to scipy.sparse.csr_matrix and solve it with scipy.sparse.linalg.eigs. PC configuration Debian 11 architecture: x86_64 8 hyperthread…

It was sufficient to set the environment variable OPENBLAS_NUM_THREADS to the desired number of threads. Apologies for the spam.

SciPy in docker container not parallel

dokken March 3, 2022, 3:21pm 9

@Lukas-Babor I made a dockerfile for ubuntu 20.04 a while back (hopefully it still works).
See: How to install dolfin on Ubuntn-20.04 from source - #5 by dokken

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