Both Allinear and RogueWave offer GUI debugging tools that sit on top of CUDA-GDB to make life a little more comfortable when debugging larger CUDA applications. Neither solution is cheap and neither is obviously better than the other, at first glance anyway.
Apart from (hopefully) making life easier and increasing productivity both of these tools offer additional profiling tools which might also help further improve performance. If this is true then a tool of this sort could certainly be worth the investment so the question is which is better? Who’s using what and what are your experiences?