Divide iree_utils and do module imports on function calls.

shark/iree_utils/vulkan_utils.py

@@ -0,0 +1,44 @@
+# Copyright 2020 The Nod Team. All rights reserved.
+#
+# Licensed 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.
+
+# All the iree_vulkan related functionalities go here.
+
+from shark.iree_utils._common import run_cmd
+
+
+def get_vulkan_triple_flag():
+    vulkan_device_cmd = "vulkaninfo | grep deviceName | awk 'END{{print $NF}}'"
+    vulkan_device = run_cmd(vulkan_device_cmd).strip()
+    if vulkan_device == "M1":
+        print("Found Apple Device. Using m1-moltenvk-macos")
+        return "-iree-vulkan-target-triple=m1-moltenvk-macos"
+    elif vulkan_device == "A100-SXM4-40GB":
+        print("Found Nvidia Device. Using ampere-rtx3080-linux")
+        return "-iree-vulkan-target-triple=ampere-rtx3080-linux"
+    else:
+        print(
+            """Optimized kernel for your target device is not added yet.
+            Contact SHARK Admin on discord[https://discord.com/invite/RUqY2h2s9u]
+            or pull up an issue."""
+        )
+        return None
+
+
+def get_iree_vulkan_args():
+    # vulkan_flag = ["--iree-flow-demote-i64-to-i32"]
+    vulkan_flag = []
+    vulkan_triple_flag = get_vulkan_triple_flag()
+    if vulkan_triple_flag is not None:
+        vulkan_flag.append(vulkan_triple_flag)
+    return vulkan_flag