Rename gpu package discover (#7143)

Cleaning up go package naming

discover/cpu_common.go

@@ -0,0 +1,37 @@
+package discover
+
+import (
+	"os"
+	"path/filepath"
+	"runtime"
+	"strings"
+
+	"golang.org/x/sys/cpu"
+)
+
+func GetCPUCapability() CPUCapability {
+	if cpu.X86.HasAVX2 {
+		return CPUCapabilityAVX2
+	}
+	if cpu.X86.HasAVX {
+		return CPUCapabilityAVX
+	}
+	// else LCD
+	return CPUCapabilityNone
+}
+
+func IsNUMA() bool {
+	if runtime.GOOS != "linux" {
+		// numa support in llama.cpp is linux only
+		return false
+	}
+	ids := map[string]interface{}{}
+	packageIds, _ := filepath.Glob("/sys/devices/system/cpu/cpu*/topology/physical_package_id")
+	for _, packageId := range packageIds {
+		id, err := os.ReadFile(packageId)
+		if err == nil {
+			ids[strings.TrimSpace(string(id))] = struct{}{}
+		}
+	}
+	return len(ids) > 1
+}