[anujsharmax]

There is no one thing as "HPC". It is a lot of normal computer components joined together to form a big "HPC" system. First, identify which kind of scaling you need - are you limited by CPU or memory if you run the code on your PC?

On a side note, please don't think about buying HPC hardware before actually write the code. You can build the code to solve real problems on your normal PC with a multi core CPU and GPU. Then you can benckmark your parallel code to determine what you acutally need.

I could help you out if you can give me more details of what you actually want to achieve.