I'm a former HP NonStop user and have often wondered the same thing. Splunk code will not run on a NS machine so you need a different solution. Look around to see if there's anything similar to collectd for NonStop. You should be able to use that to send metrics to an HTTP Event Collector. See https://docs.splunk.com/Documentation/Splunk/7.2.4/Metrics/GetMetricsInCollectd for more information.
--- If this reply helps you, Karma would be appreciated.
