FRom a series of Google searches and webcrawls i maintain for myself for my middle and upper managers. So this is not technical stuff http://www.infoworld.com/article/3123747/data-center/faster-...

https://blazingdb.com

http://diginomica.com/2016/04/11/do-gpu-optimized-databases-...

https://www.kinetica.com

https://www.mapd.com

and of course many many more scholarly articles through arxiv