Even if an error is limited to a single core, everyone is going to get affected, so there really isn't a reason to do this; send the alert to everyone.
David, you beat me to it. I'm intrigued as to what you're looking to achieve here. It's certainly a remarkable level of alert granularity.
You can call custom commands and script things to do whatever you want. HP SIM passes a lot of information about the event and you can parse the text and initiate actions based on that.
