Don't check return code of calling cl_query

benchmark/space/__init__.py

@@ -889,7 +889,7 @@ def cl_query_executable_get():
 
 def query_opencl_compute_units():
     binary = cl_query_executable_get()
-    output = subprocess.check_output([binary])
+    output = subprocess.run([binary], stdout=subprocess.PIPE).stdout
     lines = output.splitlines()
     compute_units = []
     for line in lines: