[BugFix] Fix memmap nontensor #2391

Job	Run time
build-wheel-linux (3.8, cp38-cp38, --extra-index-url https://download.pytorch.org/whl/cpu, "['cpu...	1m 2s
build-wheel-mac (3.8, 3.8)	1m 9s
build-wheel-linux (3.9, cp39-cp39, --extra-index-url https://download.pytorch.org/whl/cpu, "['cpu...	1m 4s
build-wheel-windows (3.8, 3.8)	2m 0s
build-wheel-mac (3.9, 3.9)	50s
build-wheel-linux (3.10, cp310-cp310, --extra-index-url https://download.pytorch.org/whl/cpu, "['...	1m 3s
build-wheel-windows (3.9, 3.9)	2m 18s
build-wheel-mac (3.10, 3.10.3)	1m 27s
build-wheel-linux (3.11, cp311-cp311, --extra-index-url https://download.pytorch.org/whl/cpu, "['...	1m 6s
build-wheel-windows (3.10, 3.10.3)	2m 28s
build-wheel-mac (3.11, 3.11)	53s
build-wheel-windows (3.11, 3.11)	2m 27s
test-wheel (linux, ubuntu-20.04, 3.8)	54s
test-wheel (linux, ubuntu-20.04, 3.9)	46s
test-wheel (linux, ubuntu-20.04, 3.10)	51s
test-wheel (linux, ubuntu-20.04, 3.11)	1m 2s
test-wheel (mac, macos-latest, 3.8)	2m 8s
test-wheel (mac, macos-latest, 3.9)	1m 35s
test-wheel (mac, macos-latest, 3.10)	1m 21s
test-wheel (mac, macos-latest, 3.11)	1m 20s
test-wheel-windows (3.8)	2m 35s
test-wheel-windows (3.9)	2m 16s
test-wheel-windows (3.10)	2m 6s
test-wheel-windows (3.11)	3m 2s
	37m 43s

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