Added stub for HasNvidiaGPU for non-linux/amd64 architectures.

Author: janpfeifer

pkg/installer/not_cuda.go

@@ -0,0 +1,16 @@
+//go:build !((linux && amd64) || pjrt_all)
+
+package installer
+
+// HasNvidiaGPU tries to guess if there is an actual Nvidia GPU installed (as opposed to only the drivers/PJRT
+// file installed, but no actual hardware).
+// It does that by checking for the presence of the device files in /dev/nvidia*.
+//
+// This is helpful to try to sort out the mess of path for nvidia libraries.
+// Sadly, NVidia drivers are badly organized at multiple levels -- search to see how many questions there are related
+// to where/how to install to CUDA libraries.
+//
+// To disable this check set GOPJRT_CUDA_CHECKS=no or GOPJRT_CUDA_CHECKS=0.
+//
+// On non-amd64 architectures, we assume there is no Nvidia GPU, and thi simply returns false.
+func HasNvidiaGPU() bool { return false }