ROCm 7.2 + PyTorch 2.11.0 has a bug where PyTorch passes workspace=0 to
MIOpen convolutions, forcing fallback to the slow GemmFwdRest solver.
This caused s3gen.inference to take 15-22s instead of <5s, making
synthesis 3-4x slower than real-time audio playback.
ROCm 6.1 allocates workspace correctly so MIOpen picks fast GEMM solvers
without needing torch.compile workarounds.
Changes:
- Base image: rocm/dev-ubuntu-22.04:7.2 → 6.1
- torch 2.11.0 → 2.5.1 (rocm6.1 wheel index)
- Add pytorch_triton_rocm==3.1.0
- transformers 5.2.0 → 4.46.3, safetensors 0.5.3 → 0.4.0
- s3tokenizer unpinned → 0.3.0
- resemble-perth==1.0.1 directly (v1.0.1 is pip-installable; drop stub)
- Drop Dockerfile perth_stub steps
- Drop torch.compile and timing patches from engine.py (not needed)
- Drop multi-pass warmup from main.py (torch JIT warmup not needed)
- Drop ROCm 7.2-specific env vars from docker-compose.yml
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Using :latest was pulling a ROCm 6.x image whose MIOpen was incompatible
with our ROCm 7.2 PyTorch wheels. Pinning to the 7.2 tag gives matching
MIOpen libraries and should resolve the workspace/fallback performance issue.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
PyTorch 2.11.0 with ROCm 7.2 wheels against rocm/dev-ubuntu-22.04:latest
causes MIOpen version mismatches that force every convolution onto a slow
zero-workspace fallback path (41s synthesis). The existing working project
uses torch 2.5.1 + ROCm 6.1 successfully on the same base image.
Also remove MIOPEN_FIND_ENFORCE override - unnecessary with matched versions.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Update torch/torchaudio to 2.11.0 with ROCm 7.2 wheel index
- Drop torchvision (unused for TTS) and pytorch_triton_rocm (bundled in 2.11)
- Update HSA_OVERRIDE_GFX_VERSION docs; RX 7000+ natively supported in ROCm 7.2
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Wyoming-only server built around the official chatterbox TTS model.
Includes ROCm/AMD GPU support, sentence-level streaming, config.yaml
management, and Gitea CI for container builds.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
