add vxpu

vllm_kunlun/patch/platform/patch_executor.py

@@ -0,0 +1,48 @@
+import time
+
+from vllm.executor.executor_base import logger, ExecutorBase
+
+
+original_init = ExecutorBase.__init__
+def init(self, *args, **kwargs):
+    original_init(self, *args, **kwargs)
+    self.is_offloaded = False
+
+
+def offload_vram(self):
+    if self.is_offloaded:
+        logger.warning("Executor is already offloaded.")
+        return
+    time_before_offload = time.perf_counter()
+    self.collective_rpc("offload_vram")
+    time_after_offload = time.perf_counter()
+
+    self.is_offloaded = True
+    logger.info(f"Offloading VRAM costs {time_after_offload - time_before_offload:.6f} seconds.")
+
+
+def reload_vram(self) -> bool:
+    if not self.is_offloaded:
+        logger.warning("Executor is not offloaded.")
+        return True
+
+    while True:
+        time_before_reload = time.perf_counter()
+        res = self.collective_rpc("try_reload_vram")
+        time_after_reload = time.perf_counter()
+
+        succ = all(x[0] for x in res)
+        if succ:
+            self.is_offloaded = False
+            logger.info(f"Reloading VRAM costs {time_after_reload - time_before_reload:.6f} seconds.")
+            prev_is_self = all(x[1] for x in res)
+            return prev_is_self
+        else:
+            # some workers not get lock
+            self.collective_rpc("vnpu_unlock_gpu")
+            time.sleep(0.001)
+
+
+ExecutorBase.__init__ = init
+ExecutorBase.offload_vram = offload_vram
+ExecutorBase.reload_vram = reload_vram