Challenge in accessing GPU metric

[gitvicky]

This is with the latest version of simvue using python 3.11

Exception in thread Thread-2 (_heartbeat):
Traceback (most recent call last):
File "/home/ir-gopa2/rds/rds-ukaea-ap001/ir-gopa2/Conda/envs/torch_environment/lib/python3.11/threading.py", line 1045, in _bootstrap_inner
self.run()
File "/home/ir-gopa2/rds/rds-ukaea-ap001/ir-gopa2/Conda/envs/torch_environment/lib/python3.11/threading.py", line 982, in run
self._target(*self._args, **self._kwargs)
File "/home/ir-gopa2/rds/rds-ukaea-ap001/ir-gopa2/Conda/envs/torch_environment/lib/python3.11/site-packages/simvue/run.py", line 427, in _heartbeat
self._get_internal_metrics(system_metrics_step=sys_step)
File "/home/ir-gopa2/rds/rds-ukaea-ap001/ir-gopa2/Conda/envs/torch_environment/lib/python3.11/site-packages/simvue/run.py", line 369, in _get_internal_metrics
_current_system_measure.to_dict(),
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/ir-gopa2/rds/rds-ukaea-ap001/ir-gopa2/Conda/envs/torch_environment/lib/python3.11/site-packages/simvue/metrics.py", line 164, in to_dict
_metrics[f"{RESOURCES_METRIC_PREFIX}/gpu.utilisation.percent.{i}"] = gpu[
^^^^
TypeError: tuple indices must be integers or slices, not str

[kzscisoft]

@gitvicky I don't seem to be able to recreate this, can you provide a minimal example that raises this exception?