Risc-v gpu

Is there anyone out there working on V extension GPU ?

The V extension is still in draft. It is a CPU instruction set extension, not a GPU, but you could do some software accelerated graphics using it. There are a number of companies involved with the V extension committee, and it is a fair assumption that most of them are looking at V extension implementations. A few of these were announced at the recent RISC-V Summit.
I haven’t looked at them all, but there are at least four that talk about vector support, UC Berkeley, Esperanto, VectorBlox, and ETH Zurich. Not all of those are straight V extension implementations, some are experimental, and some are proprietary.

It will likely be awhile before anything is commercially available, and even longer before anything is available to consumers.

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Thank you Jim.