arch: Relax numa_domains

Author: FabioLuporini

devito/arch/archinfo.py

@@ -734,7 +734,7 @@ def simd_items_per_reg(self, dtype):
     def numa_domains(self):
         try:
             return int(lscpu()['NUMA node(s)'])
-        except KeyError:
+        except (ValueError, TypeError, KeyError):
             warning("NUMA domain count autodetection failed")
             return 1