Using GPU mining with the Bitcoin Wallet After asking this question about using the Bitcoin wallet to mine, I am wondering how I can get my GPU involved with the mining work?

Is this possible? or this there other, non-pooling software that I can use to get the GPU of a macbook to perform blockchain validation (aka mining)?
You can use your GPU to mine, but it is going to mostly be a waste of time and energy now that there is specialized hardware (ASICs) to mine.

You need a piece of software that will allow you to mine with your GPU. The miner built into Bitcoin Core is only for CPU mining.

Check out this page on the wiki. The exact software you choose will depend on a number of factors including what make of GPU you have, your OS, etc.