From 0efca3cadbad5517a59884576ddb90cfe7ac30f8 Mon Sep 17 00:00:00 2001
From: Diego Russo <diego.russo@arm.com>
Date: Mon, 30 May 2022 13:34:14 +0100
Subject: Add MLIA codebase

Add MLIA codebase including sources and tests.

Change-Id: Id41707559bd721edd114793618d12ccd188d8dbd
---
 src/aiet/resources/tools/vela/run_vela.py | 65 +++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 src/aiet/resources/tools/vela/run_vela.py

(limited to 'src/aiet/resources/tools/vela/run_vela.py')

diff --git a/src/aiet/resources/tools/vela/run_vela.py b/src/aiet/resources/tools/vela/run_vela.py
new file mode 100644
index 0000000..2c1b0be
--- /dev/null
+++ b/src/aiet/resources/tools/vela/run_vela.py
@@ -0,0 +1,65 @@
+# SPDX-FileCopyrightText: Copyright 2022, Arm Limited and/or its affiliates.
+# SPDX-License-Identifier: Apache-2.0
+"""Wrapper to only run Vela when the input is not already optimised."""
+import shutil
+import subprocess
+from pathlib import Path
+from typing import Tuple
+
+import click
+
+from aiet.cli.common import ModelOptimisedException
+from aiet.resources.tools.vela.check_model import check_model
+
+
+def vela_output_model_path(input_model: str, output_dir: str) -> Path:
+    """Construct the path to the Vela output file."""
+    in_path = Path(input_model)
+    tflite_vela = Path(output_dir) / f"{in_path.stem}_vela{in_path.suffix}"
+    return tflite_vela
+
+
+def execute_vela(vela_args: Tuple, output_dir: Path, input_model: str) -> None:
+    """Execute vela as external call."""
+    cmd = ["vela"] + list(vela_args)
+    cmd += ["--output-dir", str(output_dir)]  # Re-add parsed out_dir to arguments
+    cmd += [input_model]
+    subprocess.run(cmd, check=True)
+
+
+@click.command(context_settings=dict(ignore_unknown_options=True))
+@click.option(
+    "--input-model",
+    "-i",
+    type=click.Path(exists=True, file_okay=True, readable=True),
+    required=True,
+)
+@click.option("--output-model", "-o", type=click.Path(), required=True)
+# Collect the remaining arguments to be directly forwarded to Vela
+@click.argument("vela-args", nargs=-1, type=click.UNPROCESSED)
+def run_vela(input_model: str, output_model: str, vela_args: Tuple) -> None:
+    """Check input, run Vela (if needed) and copy optimised file to destination."""
+    output_dir = Path(output_model).parent
+    try:
+        check_model(input_model)  # raises an exception if already Vela-optimised
+        execute_vela(vela_args, output_dir, input_model)
+        print("Vela optimisation complete.")
+        src_model = vela_output_model_path(input_model, str(output_dir))
+    except ModelOptimisedException as ex:
+        # Input already optimized: copy input file to destination path and return
+        print(f"Input already vela-optimised.\n{ex}")
+        src_model = Path(input_model)
+    except subprocess.CalledProcessError as ex:
+        print(ex)
+        raise SystemExit(ex.returncode) from ex
+
+    try:
+        shutil.copyfile(src_model, output_model)
+    except (shutil.SameFileError, OSError) as ex:
+        print(ex)
+        raise SystemExit(ex.errno) from ex
+
+
+def main() -> None:
+    """Entry point of check_model application."""
+    run_vela()  # pylint: disable=no-value-for-parameter
-- 
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