Module hello_backend 

HelloBackend kernel, trivial diagnostic that proves a GPU kernel/shader was actually invoked on the device.

Each backend writes a different magic token into a 4-byte output buffer. The token value is baked into each backend’s kernel/shader source, only that specific kernel running on the device can produce the correct non-zero value. A zero token means the kernel never executed.

The per-backend magic values are intentionally private to their respective launch modules so that a buggy Rust stub cannot accidentally return the “right” answer without the kernel having run.

See examples/hello_backend.rs for the canonical usage.

Structs

HelloBackend

Marker for the diagnostic hello kernel.

HelloBackendInput

No input needed, the kernel only writes a constant.

HelloBackendOutput

Output of the hello kernel.