Fix FLOPs inconsistency and add using_sparse_model flag #30656

Job	Run time
build-packages / build-packages (pytorch)	28s
build-packages / build-packages (fabric)	23s
build-packages / build-packages (lightning)	23s
build-packages / merge-artifacts	9s
install-pkg (ubuntu-22.04, notset, 3.10)	1m 42s
install-pkg (macOS-14, fabric, 3.11)	32s
install-pkg (macOS-14, fabric, 3.10)	1m 3s
install-pkg (ubuntu-22.04, fabric, 3.10)	1m 32s
install-pkg (ubuntu-22.04, lightning, 3.10)	1m 48s
install-pkg (macOS-14, pytorch, 3.11)	35s
install-pkg (macOS-14, pytorch, 3.10)	55s
install-pkg (ubuntu-22.04, pytorch, 3.11)	1m 41s
install-pkg (ubuntu-22.04, fabric, 3.11)	1m 26s
install-pkg (macOS-14, lightning, 3.11)	38s
install-pkg (macOS-14, lightning, 3.10)	1m 8s
install-pkg (ubuntu-22.04, notset, 3.11)	1m 33s
install-pkg (ubuntu-22.04, pytorch, 3.10)	1m 37s
install-pkg (windows-2022, fabric, 3.10)	1m 12s
install-pkg (windows-2022, pytorch, 3.10)	1m 38s
install-pkg (macOS-14, notset, 3.10)	54s
install-pkg (macOS-14, notset, 3.11)	40s
install-pkg (windows-2022, lightning, 3.10)	1m 58s
install-pkg (ubuntu-22.04, lightning, 3.11)	1m 45s
install-pkg (windows-2022, notset, 3.11)	1m 58s
install-pkg (windows-2022, pytorch, 3.11)	2m 7s
install-pkg (windows-2022, lightning, 3.11)	2m 3s
install-pkg (windows-2022, notset, 3.10)	1m 57s
install-pkg (windows-2022, fabric, 3.11)	1m 40s
install-pkg-guardian	2s
	35m 27s

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