Measure checkpoints above 1B on GPU in bfloat16 only

integration.json

@@ -51,7 +51,15 @@
           "download_mb": 20000,
           "devices": [
             "cuda"
-          ]
+          ],
+          "variants": {
+            "default": {
+              "devices": []
+            },
+            "eager": {
+              "devices": []
+            }
+          }
         }
       }
     }