Parallelization for AdjMatrices #3289

Job	Run time
codecheck / codecheck	44m 39s
docker / docker (fedora39)	19m 57s
docker / docker (rocky8)	24m 58s
conda / conda (ubuntu-20.04)	11m 50s
linux / linux (-doc-mpi-)	39m 31s
linux / linux (-mpi-)	51m 34s
conda / conda (macos-12)	8m 23s
mac / macports (macos-12)	26m 14s
conda / conda (macos-14)	2m 47s
mac / macports (macos-14)	8m 56s
linux / linux (-coverage-mpi-)	1h 1m 8s
mac / macsimple (macos-12)	8m 59s
mac / macports (+allmodules, macos-12)	44m 24s
linux / linux (-debug-)	35m 41s
mac / macsimple (macos-14)	6m 4s
linux / linux (-debug-mpi-)	45m 16s
linux / linux (-intel-)	9m 19s
linux / linux (-pycv-mpi-)	19m 55s
	7h 49m 35s

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