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The strange thing is that after these parallelisations The algorithm performed worse. I think this has to do with the granularity of the parallelism, because we aren't solving 1000 by 1000 matrices but a very large amount of 20 by 20 matrices, the parallelism isn't splitting into all that much and some of that may be faster off serial. Where our serial solution could solve up to 20 cities, this parallelised version can't solve more than 16 without taking minutes.
Another approach would have been to parallelise the whole nodes instead of the operations in them, but this is a little bit difficult because for each node to exist, the parent needs to have been evaluated already.
