Naturally, I have to cite anything (or at least anything scholarly) that even attempts to develop an open-architecture GPU. I'm coming up just short of bone dry, but here are some random things I've found so far that might be slightly interesting:
I knew that someone was trying something with the LEON core, and here's a 2012 article on it: http://www.comp.nus.edu.sg/~wongwf/papers/FPT12.pdf But LEON is a SPARC processor. This isn't a GPU. It's GPU-like, but in a very weak sort of way. This reminds me of BarraSim that tries to make a GPU simulator out of PowerPC cores. This paper HINTS a the idea of making a synthesizable GPU: http://casmail.ee.ncku.edu.tw/research/publications/CASLab_2010_CNF_01.pdf This one does some geometry calculations in FPGA: https://www.scss.tcd.ie/Michael.Manzke/fyp2004-2005/DanielMcKeon.pdf This appears to purport to do ray-tracing in hardware: http://opencores.org/project,theia_gpu I looked at the code, and it's a mess, so I can't be sure what it does, but it isn't architected like a GPU, as far as I can tell. This one ALMOST looks interesting, until you look at the code and realize it's just bits and pieces of some course assignment, missing vital components: http://code.google.com/p/verilogpipelinedgpu/source/checkout Random discussion started from 2009 by someone wanting to design their own GPU: http://beyond3d.com/showthread.php?t=55644 There are tons of papers that use GPUs to accelerate all sorts of things, including simulation, synthesis, and functional verification, which is nothing like what we're doing. This may be drowning out my searchers. Examples: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6105404 http://developer.download.nvidia.com/GTC/PDF/GTC2012/PresentationPDF/S0050-GTC2012-High-Logic-Simulation.pdf -- Timothy Normand Miller, PhD Assistant Professor of Computer Science, Binghamton University http://www.cs.binghamton.edu/~millerti/ Open Graphics Project
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