You're probably thinking of this paper: https://ui.adsabs.harvard.edu/abs/2004PatRe..37.1311O/abstract https://ui.adsabs.harvard.edu/abs/2004PatRe..37.1311O/abs

You're probably thinking of this paper: https://ui.adsabs.harvard.edu/abs/2004PatRe..37.1311O/abstract https://ui.adsabs.harvard.edu/abs/2004PatRe..37.1311O/abstra... They were running a massive neural network (by the standards back then) on a GPU years before CUDA even existed. Even funnier, they demoed it on ATI cards. But it still took until 2012 and AlexNet making heavy use of CUDA's simpler interface before the Deep Learning hype started to take off outside purely academic playgrounds. So the insight neither came from Jensen nor the other authors mentioned above, but they were the first ones to capitalise on it.