Add MIGraphX/half deps and use AMD onnxruntime wheel for ROCm 6.1.3

Per AMD docs (rocm.docs.amd.com install-onnx):
- apt install migraphx, migraphx-dev, half (required by onnxruntime-rocm)
- Switch to AMD-hosted wheel: onnxruntime_rocm-1.17.0-cp310 from repo.radeon.com
- Pin numpy==1.26.4 (numpy 2.0 incompatible with this wheel)
- Add MIGraphXExecutionProvider to provider list in engine.py

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Dockerfile.rocm

@@ -14,6 +14,9 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     ffmpeg \
     libsndfile1 \
     hipblas \
+    migraphx \
+    migraphx-dev \
+    half \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app

engine.py

@@ -37,7 +37,11 @@ def detect_device() -> str:
 
 def _get_providers(device: str) -> list:
     if device in ("rocm", "cuda"):
-        return [("ROCMExecutionProvider", {"device_id": 0}), "CPUExecutionProvider"]
+        return [
+            "MIGraphXExecutionProvider",
+            ("ROCMExecutionProvider", {"device_id": 0}),
+            "CPUExecutionProvider",
+        ]
     return ["CPUExecutionProvider"]
 
 

requirements-rocm-init.txt

@@ -1 +1,4 @@
-onnxruntime-rocm
+# AMD-provided onnxruntime wheel for ROCm 6.1.3 (Python 3.10)
+# numpy must be pinned — 2.0 is incompatible with this wheel
+https://repo.radeon.com/rocm/manylinux/rocm-rel-6.1.3/onnxruntime_rocm-1.17.0-cp310-cp310-linux_x86_64.whl
+numpy==1.26.4

requirements-rocm.txt

@@ -1,5 +1,5 @@
 # Audio processing
-numpy>=1.24.0,<2.0.0
+numpy==1.26.4
 soundfile
 librosa==0.11.0