Debugging Eigen in Nsight shows wrong balues

Developer Tools Nsight Visual Studio Edition
1

I am using Eigen 3.3.7 in my project, and have quite some issues with debugging it, also caused by the fact that the CUDA debugging shows wrong values for the constructs.

Eigen_Debugging_NSIGHT
Eigen_Debugging_NSIGHT1539×664 54.1 KB

In the image I manually access x,y,z of a 3 dimensional randomized vector, and you can see in the output that the values for x,y,z are all different, whereas the values in v3f_in in the debugger are all the same. How can I solve this issue? It makes debugging extremely hard.

2

This appears to be an optimization for unused variables (x,y,z). Be sure you are using nvcc -G (and not -lineinfo) to minimize optimizations.
If you use x,y,z the compiler will preserver their values and they will match the v3f_in members.
CPU debuggers .