ggml-org/llama.cpp b11173

on GitHub

metal : fix graph capture and handle empty graphs (#29390)

• return early when the graph has no nodes
• drop the redundant reset of capture_compute: the decrement at the top
  of the function already transitions the counter from 0 to -1, so a
  capture happens exactly once
• hint at METAL_CAPTURE_ENABLED=1 in the capture error message
• pass capture_compute == 0 (not the raw counter) as use_capture to
  ggml_metal_op_init, so GPU debug-group markers are only emitted on the
  captured compute

Assisted-by: pi:llama.cpp/Qwen3.8-27B