Upgrade to ROCm 7.2, Python 3.11, PyTorch 2.11.0

- Base image: rocm/dev-ubuntu-22.04:6.1 → 7.2
- Python 3.10 → 3.11 via deadsnakes PPA
- torch/torchaudio: 2.5.1 → 2.11.0
- torchvision: 0.20.1 → 0.26.0
- pytorch_triton_rocm: 3.1.0 → 3.3.0
- transformers: 4.46.3 → >=4.50.0
- diffusers: 0.29.0 → >=0.32.0
- safetensors: >=0.4.1 → >=0.4.5
- config: temperature 0.8→0.9, seed 0→1960

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

Dockerfile.rocm

@@ -1,4 +1,4 @@
-FROM rocm/dev-ubuntu-22.04:6.1
+FROM rocm/dev-ubuntu-22.04:7.2
 
 ENV DEBIAN_FRONTEND=noninteractive \
     PYTHONDONTWRITEBYTECODE=1 \
@@ -7,27 +7,37 @@ ENV DEBIAN_FRONTEND=noninteractive \
     PIP_NO_CACHE_DIR=1
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    python3 \
-    python3-pip \
-    python3-dev \
+    software-properties-common \
+    && add-apt-repository ppa:deadsnakes/ppa \
+    && apt-get update && apt-get install -y --no-install-recommends \
+    python3.11 \
+    python3.11-dev \
+    python3.11-distutils \
     git \
     ffmpeg \
     libsndfile1 \
     && rm -rf /var/lib/apt/lists/*
 
+# Install pip for Python 3.11
+RUN curl -sS https://bootstrap.pypa.io/get-pip.py | python3.11
+
+# Make python3.11 the default python3
+RUN update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.11 1 \
+    && update-alternatives --install /usr/bin/python python /usr/bin/python3.11 1
+
 WORKDIR /app
 
 # Step 1: Install ROCm-compatible PyTorch stack first.
 # This must happen before anything else to prevent pip from pulling CPU wheels.
 COPY requirements-rocm-init.txt .
-RUN pip3 install -r requirements-rocm-init.txt
+RUN python3 -m pip install -r requirements-rocm-init.txt
 
 # Step 2: Install remaining dependencies (pinned to avoid overwriting torch).
 COPY requirements-rocm.txt .
-RUN pip3 install -r requirements-rocm.txt
+RUN python3 -m pip install -r requirements-rocm.txt
 
 # Step 3: Install chatterbox with --no-deps so pip cannot replace ROCm torch.
-RUN pip3 install --no-deps chatterbox-tts
+RUN python3 -m pip install --no-deps chatterbox-tts
 
 # Application source
 COPY engine.py config.py wyoming_handler.py wyoming_voices.py main.py ./

config.yaml

@@ -13,11 +13,11 @@ tts_engine:
 generation_defaults:
   # Turbo model: uses temperature only (exaggeration/cfg_weight ignored)
   # Standard model: uses exaggeration and cfg_weight (temperature ignored)
-  temperature: 0.8
+  temperature: 0.9
   exaggeration: 0.5
   cfg_weight: 0.5
   # seed: 0 = random each call, >0 = reproducible output
-  seed: 0
+  seed: 1960
 
 wyoming:
   host: "0.0.0.0"

requirements-rocm-init.txt

@@ -1,5 +1,5 @@
---index-url https://download.pytorch.org/whl/rocm6.1
-torch==2.5.1
-torchaudio==2.5.1
-torchvision==0.20.1
-pytorch_triton_rocm==3.1.0
+--index-url https://download.pytorch.org/whl/rocm7.2
+torch==2.11.0
+torchaudio==2.11.0
+torchvision==0.26.0
+pytorch_triton_rocm==3.3.0

requirements-rocm.txt

@@ -5,9 +5,9 @@ librosa==0.11.0
 pyloudnorm
 
 # ML dependencies (pinned to match chatterbox without overwriting ROCm torch)
-transformers==4.46.3
-diffusers==0.29.0
-safetensors>=0.4.1
+transformers>=4.50.0
+diffusers>=0.32.0
+safetensors>=0.4.5
 huggingface-hub
 omegaconf