Omar Sobh
12d9d8462f
CI / test (push) Failing after 2s
The GPU path worked but was effectively hidden. cudarc's build script shells out
to `nvcc`, which ships in /usr/local/cuda/bin — a directory the reference host
had installed but never exported to the login shell, so `--features
embeddings-cuda` failed with a bare "`nvcc --version` failed" panic from a
dependency's build script, and the runtime fallback then reported only
"Embedder: CPU (...)" before spending hours on work a GPU does in minutes.
Two changes, both about making the failure legible rather than changing what the
code does:
- The CPU fallback now says why it fell back and what that costs, with the
concrete fix. A run that silently takes two orders of magnitude longer reads
as a hang, not as a configuration choice.
- BENCHMARKS.md states the build-time nvcc requirement, where the toolkit
actually installs, and that a shell file read non-interactively is the place
to export it — `~/.zshenv` rather than `~/.zshrc`, because build scripts do
not run in an interactive shell.
Host-side, the reference machine's CUDA exports lived in ~/.bashrc below its
non-interactive guard while the login shell is zsh, so they never applied to
anything. Moved to ~/.zshenv with duplicate-prepend guards; `nvcc --version`
and `cargo build --features embeddings-cuda` now both work over a plain
non-interactive ssh with no manual export.