[gpuhacker]

I bought the first edition when it came out, and definitely it was a gold mine of information on the subject. I wonder though, is the fourth edition worth buying another copy? Nvidia has been advancing CUDA, in particular moving more towards C++ in the kernel language. But none of that was present when this book came out in 2007. Now more and more stuff is happening at thread block level with the cooperative group C++ API and warp level for tensor cores. It would be great if the authors revisited all the early chapters to modernize that content, but that's a lot of work so I don't usually count on authors making such an effort for later editions.

[flakiness]

I also read the older edition and got the 4th for the second read recently. I felt that the updated coverage is more on the GPU side than the language side. It covers new GPU features and architectures well. I don't think it covers Tensor core things. But I might be wrong.

So it's worth the update if you're interested in general NVIDIA GPU evolution.

[gpuhacker]

Ah thanks! That's good to know.