Open maxitg opened 3 years ago
Documentation for attach_workspace
states that:
The full contents of the workspace are downloaded and copied into the directory the workspace is being attached at.
Therefore, if we persist the wolfram installation and attach on our four parallel jobs, it will download the wolfram installation on each one. DLC looks like it could be promising though.
We should even be able to cache it between builds similar to how you cache Python modules.
The problem
Due to tests parallelization #578, we are now downloading the docker image with Mathematica 4 times, which is redundant. We should figure out how to only download it once thus saving 3 minutes' worth of credits. If we download it prior to starting the testing job, we will also reduce the workflow duration by 1 minute.
Possible solution
wolfram-engine-download
job which is going to put it into the workspace.Alternative solutions
Circle CI has docker layer caching which might be useful here, however, it is not available on the free plan, and even if it was, it's quite expensive costing more credits than the entire WL testing job.