Function getIntelGPUMemory

pkg/xsysinfo/gpu.go:663–683

getIntelGPUMemory queries Intel GPUs via xpu-smi, intel_gpu_top, or clinfo (in that order). xpu-smi is the canonical Intel tool but requires the separate xpumanager package; clinfo ships with the OpenCL ICD loader and is present in most oneAPI base images, so it serves as the last-resort fallback.

()

// OpenCL ICD loader and is present in most oneAPI base images, so it
// serves as the last-resort fallback.
func getIntelGPUMemory() []GPUMemoryInfo {
	if gpus := getIntelXPUSMI(); len(gpus) > 0 {
		return gpus
	}
	if gpus := getIntelGPUTop(); len(gpus) > 0 {
		return gpus
	}
	// clinfo enumerates every OpenCL platform, so guard the
	// subprocess with the cached ghw GPU list: non-Intel hosts skip
	// it entirely.
	if !hasGHWVendor(VendorIntel) {
		return nil
	}
	var out []GPUMemoryInfo
	for _, g := range getCLInfoGPUMemory() {
		if g.Vendor == VendorIntel {
			out = append(out, g)
		}
	}
	return out
}

// hasGHWVendor reports whether ghw observed any GPU whose vendor name
// matches (case-insensitive substring). Uses the package-level cache