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feat: add macOS Metal GPU detection for local embeddings #1

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feat: add macOS Metal GPU detection for local embeddings #1

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8 changes: 8 additions & 0 deletions execute.py
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,14 @@ def _detect_gpu_backend() -> str:
if lib_ok and icd_ok:
return "vulkan"

# ── Apple Metal (macOS) ───────────────────────────────────────────────────
# Metal is available on all Apple Silicon (M1+) and most modern Intel Macs.
# node-llama-cpp supports Metal natively — just needs NODE_LLAMA_CPP_GPU=metal.
if sys.platform == "darwin":
metal_framework = Path("/System/Library/Frameworks/Metal.framework")
if metal_framework.exists():
return "metal"

# ── CPU fallback ──────────────────────────────────────────────────────────
# "false" tells node-llama-cpp: use CPU only, do NOT attempt to build any
# GPU backend from source. This avoids the CMake Vulkan errors entirely.
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9 changes: 9 additions & 0 deletions helpers/qmd_client.py
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@
import json
import math
import os
import sys
import subprocess
import threading
from pathlib import Path
Expand Down Expand Up @@ -180,6 +181,14 @@ def _detect_gpu_backend() -> str:
if lib_ok and icd_ok:
return "vulkan"

# ── Apple Metal (macOS) ───────────────────────────────────────────────────
# Metal is available on all Apple Silicon (M1+) and most modern Intel Macs.
# node-llama-cpp supports Metal natively — just needs NODE_LLAMA_CPP_GPU=metal.
if sys.platform == "darwin":
metal_framework = Path("/System/Library/Frameworks/Metal.framework")
if metal_framework.exists():
return "metal"

# ── CPU fallback ──────────────────────────────────────────────────────────
return "false"

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