halide

问题 I am trying to learn Halide by walking through the tutorials. I'm working in VS 15, and have added the NuGet package for Halide and added it as a reference to my project (as shown in the image). The NuGet tutorials I've watched seem to indicate that once I add the reference, VS should automatically recognize the header file of the project, but this is not happening. I've read all the stackoverflow questions related to this, and have tried uninstalling and reinstalling the package, restarting

问题 I am trying to learn Halide by walking through the tutorials. I'm working in VS 15, and have added the NuGet package for Halide and added it as a reference to my project (as shown in the image). The NuGet tutorials I've watched seem to indicate that once I add the reference, VS should automatically recognize the header file of the project, but this is not happening. I've read all the stackoverflow questions related to this, and have tried uninstalling and reinstalling the package, restarting

问题 I'm getting started with Halide, and whilst I've grasped the basic tenets of its design, I'm struggling with the particulars (read: magic) required to efficiently schedule computations. I've posted below a MWE of using Halide to copy an array from one location to another. I had assumed this would compile down to only a handful of instructions and take less than a microsecond to run. Instead, it produces 4000 lines of assembly and takes 40ms to run! Clearly, therefore, I have a significant

问题 When trying to run the sample code below (similar to a look up table), it always generates the following error message: "The pure definition of Function 'out' calls function 'color' in an unbounded way in dimension 0". RDom r(0, 10, 0, 10); Func label, color, out; Var x,y,c; label(x,y) = 0; label(r.x,r.y) = 1; color(c) = 0; color(label(r.x,r.y)) = 255; out(x,y) = color(label(x,y)); out.realize(10,10); Before calling realize, I have tried to statically set bound, like below, without success.

问题 I already have an application that takes input images, copies them to GPU, and then some CUDA filters are applied to that image. So, when I want to implement a new filter, I only write the filter itself (ie. kernel), since the CPU-GPU copying logic is already there. Now I want to try out Halide for writing image filters for CUDA, and I encounter a problem that Halide::Buffer, which represents input image, is allocated on CPU, so I would have to change my existing copying logic. Is there any

问题 i tried to install tiramisu compiler and once trying install it's sub-modules ( (ISL, LLVM and Halide) by using this command dina@dina-VBox:~/tiramisu$ ./utils/scripts/install_submodules.sh ./ i get the error Done installing isl #### Installing LLVM #### cd .//3rdParty/llvm .//utils/scripts/functions.sh: line 6: cd: .//3rdParty/llvm: No such file or directory and to fix it i used the command shared on the answer here ./utils/scripts/install_submodules.sh $PWD it worked better then the first

问题 Hi i'm trying to install tiramisu compiler. and once trying install it's sub-modules ( (ISL, LLVM and Halide) by using this command dina@dina-VBox:~/tiramisu$ ./utils/scripts/install_submodules.sh ./ and i get in the end this error Done installing isl #### Installing LLVM #### cd .//3rdParty/llvm .//utils/scripts/functions.sh: line 6: cd: .//3rdParty/llvm: No such file or directory even one i do ls i find it dina@dina-VBox:~/tiramisu/3rdParty$ ls clang Halide isl llvm and this is llvm content

问题 I got a func f(x, y, z) in which the values is either 1 and 0, and I need to get the the first 100 coordinates of the values which equals to 1, to reduction/update them to 0. This is very simple to realize in c and other languages, However, I've been trying to solve it with Halide for a couple of days. Is there any Function or Algorithm that I can use to solve it in Halide Generators? 回答1: The question amounts to "How do I implement stream compaction in Halide?" There is much written on

问题 I'm trying to create a template matching program that's using the following formula to determine the fit between the template and the image: my code is following: Halide::Var x, y, xt, yt; Halide::RDom r(0, t.width(), 0, t.height()); Halide::Func limit, compare; limit = Halide::BoundaryConditions::constant_exterior(input,255); compare(x, y) = limit(x,y); compare(x, y) = Halide::cast<uint8_t>(Halide::pow(t(0 + r.x, 0 + r.y) - limit(x + r.x, y + r.y),2)); Halide::Image<uint8_t> output(input

问题 I have a Halide::Runtime::Buffer and would like to remove elements that match a criteria, ideally such that the operation occurs in-place and that the function can be defined in a Halide::Generator . I have looked into using reductions, but it seems to me that I cannot output a vector of a different length -- I can only set certain elements to a value of my choice. So far, the only way I got it to work was by using a extern "C" call and passing the Buffer I wanted to filter, along with a