Cache NEST source build in CI and parallelize compile#843
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The NEST build from source (~18 min per Ubuntu job) dominates CI time. Cache the ~/.local install tree keyed on NEST/OS/Python version so it is rebuilt only on a cache miss, and use make -j to parallelize the compile when a rebuild is needed.
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coverage: 71.113%. first build — apdavison:ci-cache-nest-build into NeuralEnsemble:master |
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The NEST build from source (~18 min per Ubuntu job) dominates CI time. Cache the ~/.local install tree keyed on NEST/OS/Python version so it is rebuilt only on a cache miss, and use make -j to parallelize the compile when a rebuild is needed.