Fix FLOPs inconsistency and add using_sparse_model flag #30653

Job	Run time
build-packages / build-packages (fabric)	26s
build-packages / build-packages (lightning)	33s
build-packages / build-packages (pytorch)	32s
build-packages / merge-artifacts	12s
install-pkg (ubuntu-22.04, lightning, 3.11)	1m 48s
install-pkg (ubuntu-22.04, fabric, 3.10)	1m 27s
install-pkg (macOS-14, fabric, 3.10)	1m 2s
install-pkg (macOS-14, lightning, 3.10)	49s
install-pkg (ubuntu-22.04, pytorch, 3.11)	1m 36s
install-pkg (windows-2022, pytorch, 3.10)	1m 50s
install-pkg (macOS-14, pytorch, 3.11)	44s
install-pkg (ubuntu-22.04, lightning, 3.10)	1m 28s
install-pkg (windows-2022, lightning, 3.10)	2m 1s
install-pkg (windows-2022, pytorch, 3.11)	2m 3s
install-pkg (ubuntu-22.04, fabric, 3.11)	1m 29s
install-pkg (windows-2022, fabric, 3.10)	1m 31s
install-pkg (windows-2022, fabric, 3.11)	1m 53s
install-pkg (macOS-14, lightning, 3.11)	44s
install-pkg (macOS-14, notset, 3.10)	1m 7s
install-pkg (ubuntu-22.04, pytorch, 3.10)	1m 33s
install-pkg (windows-2022, lightning, 3.11)	1m 59s
install-pkg (ubuntu-22.04, notset, 3.10)	1m 38s
install-pkg (windows-2022, notset, 3.10)	2m 19s
install-pkg (macOS-14, fabric, 3.11)	40s
install-pkg (macOS-14, pytorch, 3.10)	49s
install-pkg (ubuntu-22.04, notset, 3.11)	1m 35s
install-pkg (windows-2022, notset, 3.11)	1m 58s
install-pkg (macOS-14, notset, 3.11)	37s
install-pkg-guardian	4s
	36m 27s

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