Sumatra on i5 cpu

[cmaniak]

Hello,

I'm fascinated with idea of Project Sumatra and want to run it on my laptop with intel i5 cpu.
Please correct me if I'm wrong
1)When I use cpu without HSA functionality (for example i5) should I use Okra-Interface-to-HSAIL-Simulator?
2)Are there any benefits in performance using Sumatra with Okra-Interface-to-HSAIL-Simulator? I know that I can master new syntax with lambdas, but I'm rather interested in performance. Are there any differences in pure jdk8 and Sumatra build with okra simulator?
3)What are your expieriences with nvidia graphic card? I have nvidia geforce 660m in my laptop. Can I use it with Sumatra?
4)What for a project Graal is? Is it required to run with Sumatra?

Regards,
Leszek Korpowski