skip fsdp if cpu

Signed-off-by: jiqing-feng <jiqing.feng@intel.com>

Author: jiqing-feng

tests/test_linear4bit.py

@@ -569,14 +569,7 @@ def test_params4bit_quant_state_attr_access(device, quant_type, compress_statist
     assert w.bnb_quantized is True
 
 
-@pytest.mark.skipif(
-    not (
-        (hasattr(torch, "accelerator") and torch.accelerator.is_available())
-        or torch.cuda.is_available()
-        or (hasattr(torch, "xpu") and torch.xpu.is_available())
-    ),
-    reason="FSDP requires an accelerator device",
-)
+@pytest.mark.skipif(not get_available_devices(no_cpu=True), reason="FSDP requires an accelerator device")
 def test_fsdp_state_dict_save_4bit():
     """Integration test: FSDP get_model_state_dict with cpu_offload on a 4-bit model (#1405).