Add TP2 prefill serving-path smoke experiment

runs/frontier-tp2-prefill-serving-v0/fleet.toml

@@ -0,0 +1,48 @@
+version = 1
+
+[paths]
+state_dir = "runs/frontier-tp2-prefill-serving-v0/fleet-state"
+artifacts_dir = "runs/frontier-tp2-prefill-serving-v0/fleet-artifacts"
+
+[ssh]
+connect_timeout_sec = 10
+
+[scheduler]
+gpu_free_memory_mb = 1024
+gpu_free_utilization_pct = 10
+prefer_pack = true
+
+# Code is synchronized by Git. The fleet's mandatory rsync pass is intentionally
+# empty so it only schedules and harvests the committed remote checkout.
+[sync]
+mode = "rsync"
+local_path = "runs/frontier-tp2-prefill-serving-v0"
+exclude = ["*"]
+
+[[hosts]]
+name = "dash1"
+ssh_alias = "dash1"
+enabled = true
+sync_remote_path = "/home/admin/cpfs/wjh/aituner/aituner"
+fleet_root = "/home/admin/cpfs/wjh/aituner/gpu-fleet-tp2-prefill-serving-v0/dash1"
+
+[[hosts]]
+name = "dash2"
+ssh_alias = "dash2"
+enabled = true
+sync_remote_path = "/home/admin/cpfs/wjh/aituner/aituner"
+fleet_root = "/home/admin/cpfs/wjh/aituner/gpu-fleet-tp2-prefill-serving-v0/dash2"
+
+[[hosts]]
+name = "dash3"
+ssh_alias = "dash3"
+enabled = true
+sync_remote_path = "/home/admin/cpfs/wjh/aituner/aituner"
+fleet_root = "/home/admin/cpfs/wjh/aituner/gpu-fleet-tp2-prefill-serving-v0/dash3"
+
+[[hosts]]
+name = "dash4"
+ssh_alias = "dash4"
+enabled = true
+sync_remote_path = "/home/admin/cpfs/wjh/aituner/aituner"
+fleet_root = "/home/admin/cpfs/wjh/aituner/gpu-fleet-tp2-prefill-serving-v0/dash4"