add debug prints #217

Job	Run time
fortran (ubuntu-latest, gcc, 12)	48s
fortran (ubuntu-latest, gcc, 11)	37s
fortran (ubuntu-latest, intel-classic, 2021.10)	1m 54s
fortran (macos-latest, gcc, 13)	16s
fortran (macos-latest, intel-classic, 2021.10)	3m 10s
fortran (macos-13, gcc, 13)	24s
fortran (macos-13, gcc, 12)	25s
fortran (macos-13, gcc, 11)	51s
fortran (macos-13, intel-classic, 2021.10)	57s
fortran (ubuntu-latest, nvidia-hpc, 20.11)	2m 50s
fortran (ubuntu-latest, nvidia-hpc, 23.11)	4m 12s
fortran (ubuntu-latest, intel-classic, 2021.1)	1m 37s
fortran (ubuntu-latest, intel-classic, 2021.12)	1m 21s
fortran (ubuntu-latest, intel, 2024.1)	1m 23s
fortran (ubuntu-latest, intel, 2021.1)	1m 29s
fortran (ubuntu-latest, gcc, 10)	54s
fortran (ubuntu-latest, gcc, 9)	42s
	23m 50s

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