macbook pro has had many kernal panics now won't even start

I've read the phrases kernal panic and failing gpu. I stating getting these a few months back. They have been happening in clusters. Now after closing the book it won't start at all and it feels hot. Its gotten hop in the past when apparently it kept going after I closed it but this is the first time it won't start up again for about a half hour now after I opened it up.

This has a solid state drive so its not a disk problem.

Mike