Method sync

jvm/core/src/main/java/org/apache/tvm/Device.java:211–213

Synchronize until jobs finished at the device.

()

   * Synchronize until jobs finished at the device.
   */
  public void sync() {
    Base.checkCall(Base._LIB.tvmSynchronize(deviceType, deviceId));
  }

  @Override
  public int hashCode() {