The GitHub search feature is also quite useful for seeing how other package authors have constructed Makevars (or Makevars.win) when compiling with custom targets. For example, a quick search of how some authors manipulate OBJECTS in Makevars.win:
https://github.com/search?utf8=%E2%9C%93&q=OBJECTS+extension%3Awin&type=Code&ref=advsearch&l= Of course, not all examples are good examples, but it definitely provides examples to learn from -- and personally, my Makefile-fu is pretty weak. Here's an example from 'gpusim' using 'nvcc' in their own Makevars.win: https://github.com/rforge/gpusim/blob/d07dd509be5d414d3f4add66db8c841146813544/pkg/src/Makefile.win Hopefully this gives you some more direction... Kevin On Fri, May 29, 2015 at 10:49 AM Duncan Murdoch <murdoch.dun...@gmail.com> wrote: > On 29/05/2015 9:52 AM, Charles Determan wrote: > > I am actively working on an R package that will incorporate some CUDA > code > > for using NVIDIA GPU devices. I am quite familiar with Rcpp for C++ code > > and accustomed to using a Makevars file for specifying compiler options. > > However I am stumped currently about how to use the NVCC compiler for the > > .cu files. > > > > Typically, a CUDA program will first be compiled with NVCC and the linked > > with any other .o files. > > > > # very simplified example > > nvcc my_cuda_function.cu -o my_cuda_function.o > > g++ -o my_program.so other_cpp_function.o my_cuda_function.o > > > > I have seem some older packages using a Makefile but I have also read > that > > this is currently recommended against because of the need for multiarch > > builds. > > > > Does anyone know how I can tell R to compile .cu files with NVCC and > > 'proceed as normal' with the resulting .o files? > > You can include the recipes for those .o files in your Makevars file. > It is essentially a fragment of the full Makefile needed by your > package. I forget if you'll need to give an explicit recipe for the > library, or whether the standard file will link them in. Try it! > > Duncan Murdoch > > ______________________________________________ > R-package-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-package-devel > [[alternative HTML version deleted]] ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
