chore(ci): parallel ci #91
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Great, thank you @KnorpelSenf ! |
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Currently, all tasks are in the same job. As a result, CI takes almost 10 minutes to run.
These changes split up this large job into many smaller ones, one for each task. That way, they can be executed concurrently. This cuts CI times by ~10X with cache and still by ~2X without cache.
This causes some actions like the system setup to be performed repeatedly for each job, but the impact of this can be reduced by skipping the most expensive steps such as installing CPLEX and building all solvers. Instead, we only install the necessary system deps and only build the solver relevant for each test. (If you still do not want to perform the remaining computations redundantly for some reason, that's not a big deal, feel free to leave a comment and close this—it's just a suggestion.)