Brush-up small library for searching a substring using GPU

Brush-up a small library for searching a substring using GPU. The library is already written and WORKING, so the task is not to write it from scratch, not to add any options, not to support multiple GPU cards, but only brush it up and make real C++ library, which can be used from C# application. Requirements: 0. C# 3.5, NVidia CUDA C++, Visual Studio 2008 1. Take the attached project and understand it 2. Rewrite and brush up C++ GPU part according to comments inside the code 3. From C# code compare performance of CPU vs. GPU search (should be at least 10 times better) 4. Implement unit-tests in test project which is pre-created for you in the solution 5. Check that the final project works on x86 and x64 in both debug and release configurations (all 2x2 = 4 options!)