arch: Improve GPU autodetection

FabioLuporini · FabioLuporini · commit 3700caeb9968 · 2025-05-26T13:44:24.000+01:00
diff --git a/devito/arch/archinfo.py b/devito/arch/archinfo.py
@@ -192,7 +192,7 @@ def homogenise_gpus(gpu_infos):
 
         warning('Different models of graphics cards detected')
 
-        return {}
+        return {'ncards': len(gpu_infos)}
 
     # Parse textual gpu info into a dict
 
