Mixed precision `data_override_mod` #2399

Job	Run time
build (--disable-openmp, --with-yaml, --enable-deprecated-io)	11m 9s
build (--disable-openmp, --with-yaml, --disable-deprecated-io)	11m 8s
build (--disable-openmp, --enable-test-input=/home/unit_tests_input, --enable-deprecated-io)	11m 37s
build (--disable-openmp, --enable-test-input=/home/unit_tests_input, --disable-deprecated-io)	11m 7s
build (--enable-mixed-mode, --with-yaml, --enable-deprecated-io)	11m 25s
build (--enable-mixed-mode, --with-yaml, --disable-deprecated-io)	10m 28s
build (--enable-mixed-mode, --enable-test-input=/home/unit_tests_input, --enable-deprecated-io)	11m 32s
build (--enable-mixed-mode, --enable-test-input=/home/unit_tests_input, --disable-deprecated-io)	11m 2s
build (--disable-setting-flags, --with-yaml, --enable-deprecated-io)	11m 0s
build (--disable-setting-flags, --with-yaml, --disable-deprecated-io)	10m 54s
build (--disable-setting-flags, --enable-test-input=/home/unit_tests_input, --enable-deprecated-io)	11m 41s
build (--disable-setting-flags, --enable-test-input=/home/unit_tests_input, --disable-deprecated-io)	13m 47s
build (--with-mpi=no, --with-yaml, --enable-deprecated-io)	5m 46s
build (--with-mpi=no, --with-yaml, --disable-deprecated-io)	4m 7s
build (--with-mpi=no, --enable-test-input=/home/unit_tests_input, --enable-deprecated-io)	4m 40s
build (--with-mpi=no, --enable-test-input=/home/unit_tests_input, --disable-deprecated-io)	5m 24s
	2h 36m 47s

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