> Much better to do on the GPU Oh? Which GPU? iGPU? Discrete? Intel? Nvidia? AMD? From which generation? Using what libraries? Assuming you are runnin

> Much better to do on the GPU Oh? Which GPU? iGPU? Discrete? Intel? Nvidia? AMD? From which generation? Using what libraries? Assuming you are running on an x86-64? Or maybe arm? Something else? How are you going to handle underflow/overflow? Did you need IEEE FP support? How many $1000s were you going to spend on hardware to test/verify your code on different GPUs? Also depends on how big the matricies are, if they are too small and the latency of the GPU isn't worth it, too large and it won't fit. The too small/too large decision depends on which GPU, how many PCIe lanes, and which library. So not such a simple decision.