* [Hexagon] Improved ergonomics of HexagonLauncher in unit tests.
The goal of this commit is to reduce/eliminate common code required
through unit tests that interact with Hexagon hardware.
- New testing fixtures in `tests/python/contrib/test_hexagon`. A test
running on hexagon hardware should only need to use the
`hexagon_session` fixture.
- `rpc_server_port`: Iterates through port numbers, selecting an
unused port for each unit test. Avoids needing to explicitly
specify unique ports for each unit test.
- `tvm_tracker`: Starts a tracker on use, exits after test. Avoids
needing to manually start a tracker prior to running the unit
test.
- `hexagon_launcher`: Starts a `HexagonLauncher` server on use,
stops server after test. Avoids needing to call `start_server()`
and `stop_server()` in each test.
- `hexagon_session`: Starts a hexagon session using
`hexagon_laucnehr.start_session()`, exits after test.
- Added `Session.upload` function, which delegates to
`HexagonLauncher.upload`. Avoids needing to interact with both the
launcher and the session.
- Allowed `tvm.IRModule` as argument passed to `Session.load_module`,
which will automatically save/upload the module, then load it.
Avoids needing to handle save/upload of temporary files in each unit
test.
* Added default port for tracker if not already set.
* Pass through None from hexagon_launcher to hexagon_session.
* Updated launcher to use external tracker if specified.
* Avoid setting up the local tracker unless required.
* Declare previous_port as global, instead of list.
* Corrected type hints.
* Docstring updates
Eric Lunderberg
f16286e399