Dwifslpreproc eddy cuda error

Sure. You’re trying to run the GPU-accelerated version of eddy, which relies on nVIDIA’s CUDA framework. The message says it can’t find the necessary CUDA version 7.5 runtime library, which your specific version of eddy_cuda requires (eddy_cuda can be linked against different versions, it depends what version was installed on the system where your specific version of eddy was compiled).

At this point, there are a few options:

  1. you don’t have a nVIDIA GPU on your system (they’re quite rare on macOS systems these days). At this point, there’s no point trying to install CUDA since there’s no suitable hardware to run on. The solution here would be to remove eddy_cuda, and use eddy_openmp instead. It will be slower, but at least it’ll run.

  2. you do have a nVIDIA GPU on your system. In this case, you’ll either need to find a more up to date version of eddy_cuda compiled against the same version of CUDA as is installed on your system (if you have CUDA installed in the first place), or make sure you install the matching version of CUDA (not trivial since 7.5 is really outdated by now…).

Either way, this is a bit outside our remit, it really is an FSL issue. I’d recommend searching on the FSL forums to see if anyone has come up with quick and easy solutions for this.