Merge pull request #2502 from devitocodes/groupby #7238

Job	Run time
pytest-ubuntu-py311-gcc11-noomp-base	53m 27s
pytest-ubuntu-py311-gcc11-noomp-adjoint	39m 37s
pytest-ubuntu-py312-gcc12-omp-base	1h 11m 20s
pytest-ubuntu-py312-gcc12-omp-adjoint	51m 39s
pytest-ubuntu-py39-gcc7-omp-base	55m 56s
pytest-ubuntu-py39-gcc7-omp-adjoint	40m 48s
pytest-ubuntu-py310-gcc10-noomp-base	53m 46s
pytest-ubuntu-py310-gcc10-noomp-adjoint	41m 12s
pytest-ubuntu-py312-gcc13-omp-base	1h 10m 18s
pytest-ubuntu-py312-gcc13-omp-adjoint	51m 53s
pytest-ubuntu-py39-gcc9-omp-base	55m 11s
pytest-ubuntu-py39-gcc9-omp-adjoint	40m 23s
pytest-osx-py312-clang-omp-base	34m 16s
pytest-docker-py39-gcc-omp-base	47m 33s
pytest-docker-py39-gcc-omp-adjoint	35m 51s
pytest-docker-py39-icx-omp-base	47m 0s
pytest-docker-py39-icx-omp-adjoint	43m 13s
	13h 53m 23s

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