build-tornado

# Build TornadoVM Build TornadoVM from source. Available backends: `opencl` (default), `ptx`, `spirv`, `cuda`, `metal`. Comma-separated combos allowed (e.g. `ptx,opencl` but not suggested). ## When to Use | Scenario | Use This Skill? | |----------------------------------------------------------|----------------| | `echo $TORNADOVM_HOME` does not point to a TornadoVM SDK | Yes | ## Prerequisites - JAVA_HOME is set to jdk 21 or 25 - `nvidia-smi` succeeds (GPUs visible) ## Instructions ### Step 1: Verify Environment Run `nvidia-smi` to confirm you are on a system with GPU access. ### Step 2: Locate the Codebase `cd` to the TornadoVM repository. If the path is not provided by the user, ask for it. If the path doesn't exist, stop and ask — don't clone or guess. ### Step 3: (Optional) Checkout Branch A single word/arg to this skill is the **backend** unless the user explicitly calls it a branch (e.g. "on the develop branch"). Only checkout when a branch is explicitly named: ```bash git checkout <branch> && git pull ``` ### Step 4: Build If the backend of choice is not provided by the user, ask for it. Run the build command: ```bash make BACKEND=<backend> ``` ### Step 5: Install ```bash source setvars.sh ``` Note: this only sets env vars for the current shell. Each new Bash tool call is a fresh shell — re-source `setvars.sh` before any later `tornado`/GPULlama3 command in a new call. ### Step 6: Verify ```bash tornado --devices ```