I’m trying to run the auto-tuning example from here.I don’t know why this error happen.
Extract tasks... [Task 1/12] Current/Best: 0.00/ 0.00 GFLOPS | Progress: (0/800) | 0.00 s Process Process-1: Traceback (most recent call last): File "/home/liu/anaconda3/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap self.run() File "/home/liu/anaconda3/lib/python3.7/multiprocessing/process.py", line 99, in run self._target(*self._args, **self._kwargs) File "/home/liu/tvm/python/tvm/rpc/tracker.py", line 362, in _tracker_server handler.run() File "/home/liu/tvm/python/tvm/rpc/tracker.py", line 357, in run self._ioloop.start() File "/home/liu/anaconda3/lib/python3.7/site-packages/tornado/platform/asyncio.py", line 153, in start self.asyncio_loop.run_forever() File "/home/liu/anaconda3/lib/python3.7/asyncio/base_events.py", line 525, in run_forever raise RuntimeError('This event loop is already running') RuntimeError: This event loop is already running --------------------------------------------------------------------------- RuntimeError Traceback (most recent call last) <ipython-input-5-585d2a656ce1> in <module> 36 # Uncomment the following line to run it by yourself. 37 ---> 38 tune_and_evaluate(tuning_option) <ipython-input-5-585d2a656ce1> in tune_and_evaluate(tuning_opt) 8 9 # run tuning tasks ---> 10 tune_kernels(tasks, **tuning_opt) 11 tune_graph(mod["main"], data_shape, log_file, graph_opt_sch_file) 12 <ipython-input-4-74abc8a67d9f> in tune_kernels(tasks, measure_option, tuner, early_stopping, log_filename) 40 callbacks=[ 41 autotvm.callback.progress_bar(n_trial, prefix=prefix), ---> 42 autotvm.callback.log_to_file(log_filename), 43 ], 44 ) ~/tvm/python/tvm/autotvm/tuner/tuner.py in tune(self, n_trial, measure_option, early_stopping, callbacks, si_prefix) 110 One of tvm.autotvm.utils.SI_PREFIXES. The SI prefix to use when reporting FLOPS. 111 """ --> 112 measure_batch = create_measure_batch(self.task, measure_option) 113 n_parallel = getattr(measure_batch, "n_parallel", 1) 114 early_stopping = early_stopping or 1e9 ~/tvm/python/tvm/autotvm/measure/measure.py in create_measure_batch(task, option) 255 runner = option["runner"] 256 --> 257 attach_objects = runner.set_task(task) 258 259 # feed device related information from runner to builder ~/tvm/python/tvm/autotvm/measure/measure_methods.py in set_task(self, task) 422 self.port = tracker.port 423 --> 424 super(LocalRunner, self).set_task(task) 425 return server, tracker 426 ~/tvm/python/tvm/autotvm/measure/measure_methods.py in set_task(self, task) 250 else: 251 raise RuntimeError( --> 252 "Cannot get remote devices from the tracker. " 253 "Please check the status of tracker by " 254 "'python -m tvm.exec.query_rpc_tracker --port [THE PORT YOU USE]' " RuntimeError: Cannot get remote devices from the tracker. Please check the status of tracker by 'python -m tvm.exec.query_rpc_tracker --port [THE PORT YOU USE]' and make sure you have free devices on the queue status.
I’d appreciate any help on how to avoid this error so the tuning can finish.