Hello everyone,

I'm building a CUDA project on Windows with Visual Studio 2013, using VC12 and the newest nvcc from CUDA 7.0 RC.
As recommended I'm using the latest Eigen-dev branch.

Currently I'm trying to pass a Vector3d to a kernel, but during compilation I'm getting these errors, and I'm hoping that someone could help me with them.
Thanks in advance!

Error : declaration is incompatible with "void Eigen::BDCSVD<_MatrixType>::structured_update(Eigen::Block<Eigen::Matrix<Eigen::NumTraits<_MatrixType::Scalar>::Real, Eigen::Dynamic, Eigen::Dynamic, <expression>, Eigen::Dynamic, Eigen::Dynamic>, Eigen::Dynamic, Eigen::Dynamic, false>, const Eigen::BDCSVD<_MatrixType>::MatrixXr &, Eigen::SVDBase<Eigen::BDCSVD<_MatrixType>>::Index)"
c:\libraries\eigen-nvcc\eigen\src\SVD\BDCSVD.h Line(302) Column(1)

Error : no instance of overloaded function "Eigen::DenseBase<Derived>::replicate" matches the specified type
c:\libraries\eigen-nvcc\eigen\src\Core\Replicate.h Line(156) Column(1)

CUDA with MSVC has been really tested yet. Do you really need SVD on CUDA side? Perhaps it would be safer to first try with Eigen/Core features only.

Hi, I am having this issue as well and for me being able to use Eigen + CUDA would be a major advantage. Only importing Eigen/Core solves the SVD issue, but we are left with the replicate problem. Specifically

eigen\eigen\src/Core/Replicate.h(128): error : no instance of overloaded function "Eigen::DenseBase<Derived>::replicate" matches the specified type

Does anyone have any idea what is causing this? If i had a pointer in the right direction I may pursue trying to get MSVC support for Eigen+CUDA running, but currently I'm quite lost at what could cause this. The bug persists even with CUDA 7.5.

Ok, I have fixed the issues, and they seem related to NVCC failing to parse template code declared in one place and defined in another. I have forked Eigen and have this on the following repo:

https://github.com/Berzerka/eigen

If anyone more experianced than me with the flow wants to integrate this into the main branch, it would be great. With some pointers I may even be able to do it myself.