text: # Licensed to the Apache Software Foundation (ASF) under one
  # or more contributor license agreements.  See the NOTICE file
  # distributed with this work for additional information
  # regarding copyright ownership.  The ASF licenses this file
  # to you under the Apache License, Version 2.0 (the
  # "License"); you may not use this file except in compliance
  # with the License.  You may obtain a copy of the License at
  #
  #   http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing,
  # software distributed under the License is distributed on an
  # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  # KIND, either express or implied.  See the License for the
  # specific language governing permissions and limitations
  # under the License.
  
  # Modified by contributors from Intel Labs
  
  import sys, os
  import tvm
  from tvm import rpc
  from vta import get_bitstream_path, download_bitstream, program_fpga, reconfig_runtime
  
  assert "VTA_RPC_HOST" in os.environ, "Set VTA_RPC_HOST environment variable"
  assert "VTA_RPC_PORT" in os.environ, "Set VTA_RPC_PORT environment variable"
  host = os.environ.get("VTA_RPC_HOST")
  port = int(os.environ.get("VTA_RPC_PORT"))
  
  def program_rpc_bitstream(path=None):
      """Program the FPGA on the RPC server
  
      Parameters
      ----------
      path : path to bitstream (optional)
      """
      assert tvm.runtime.enabled("rpc")
      remote = rpc.connect(host, port)
      program_fpga(remote, path)
  
  def reconfig_rpc_runtime():
      """Reconfig the RPC server runtime
      """
      assert tvm.runtime.enabled("rpc")
      remote = rpc.connect(host, port)
      reconfig_runtime(remote)
  
  bitstream = sys.argv[1] if len(sys.argv) == 2 else None
  program_rpc_bitstream(bitstream)
  reconfig_rpc_runtime()
  