def create_if_supported(cls):
executable = find_executable2("cpu-energy-meter")
if executable is None: # not available on current system
logging.debug(
"Energy measurement not available because cpu-energy-meter binary could not be found."
)
return None
return cls(executable)
def __init__(self, show_warnings=False):
self.reset_required = False
self.show_warnings = show_warnings
self.mon_process = None
self.executable_path = find_executable2("pqos_wrapper")
if self.executable_path is None:
if self.show_warnings:
logging.info(
"Unable to find pqos_wrapper, please install it for "
"cache allocation and monitoring if your CPU supports Intel RDT "
"(cf. https://gitlab.com/sosy-lab/software/pqos-wrapper).")
def _find_file_relative(name):
"""
Find a file with the given name in the same directory as this script.
Returns a path relative to the current directory, or None.
"""
main_dir = os.path.dirname(sys.argv[0])
search_dirs = [
main_dir,
os.path.join(main_dir, os.path.pardir, "bin"),
os.path.join(os.path.dirname(__file__), os.path.pardir),
]
path = util.find_executable2(name, search_dirs)
if not path:
return None
if os.path.dirname(path) in util.get_path():
# in PATH, just use command name
return os.path.basename(path)
path = os.path.relpath(path)
if path == name:
path = "./" + path # for easier copy and paste into a shell
return path