Phoronix: PathScale Has An "Open" NVIDIA Compute Driver

PathScale, the company that developes the EKOPath 4 compiler and provided the *BSDs with a new run-time, is also the company behind the PSCNV driver. The PSCNV driver is the open-source NVIDIA driver that's forked from the Nouveau code and is focused on delivering maximum performance and to provide compute support. While the code isn't available at this time, it appears they have succeeded in having a working OpenCL compute infrastructure that's independent of NVIDIA's binary driver...

http://www.phoronix.com/vr.php?view=OTkxMA