search for: clcreateprogramwithbinary

...ay of using an AMDGPU generated kernel code for OpenCL was. I am trying to provide Polly's GPGPU Code generation with the ability to run on different GPU devices, such as AMD GPUs. For NVIDIA, I simply retrieve a pre-compiled PTX string from the NVPTX backend and pass that to OpenCL's 'clCreateProgramWithBinary' function. However, when doing the same with the AMDGPU backend and its returned kernel string, OpenCL complains about an invalid binary. This has been tried with a number of different target triples (eg. 'amdgcn--', 'amdgcn-amd-amdhsa' etc), and my assumption so far is, that I...

...> clang -include /path/to/libclc/headers/clc.h -I /path/to/libclc/headers -Dcl_clang_storage_class_specifiers -target amdgcn--amdhsa -mcpu=carrizo $INPUT_FILE -o $OUTPUT_FILE Hi Tom, to piggy-pack on this question. To load this kernel in OpenCL, is it sufficient to just pass $OUTPUT_FILE to clCreateProgramWithBinary? Also, assuming this is enough. Is the code quality for recent AMD GPUs quality-wise on the level of what AMD's closed-source driver would generate. Thank you, Tobias

Dear all, After a huge amount of time trying to install LLVM and Clang i could finally do it, so now im trying to use this tools for generating a bytecode, then apply it modular optimizations and then generate an executable to test the result. First, I only want to compile a project and execute it to see how it works, specifically this one:

Hi LLVM, I would like to compile OpenCL kernel for a specific AMD GPU target. Is it possible with the current clang/LLVM? I started by using `clang -x cl` but it looks like at least some OpenCL specific headers are missing (e.g. uint2 is not recognized as a type). Any links to documentation / tutorials very welcome. Thanks. - Paweł -------------- next part -------------- An HTML attachment was

...ProgramFromSource + clBuildProgram: this is so-called > “online” compilation, when your device code is written in OpenCL C and its > compilation is performed in runtime (all stages like front-end, middle-end > optimizations and back-end, i.e. codegen to native code) > 2. Use clCreateProgramWithBinary + clBuildProgram: this is so-called > “offline” compilation, where you build your device code manually prior > launching the app. Unfortunately, OpenCL spec doesn’t define binary format, > i.e. it is implementation-defined. Usually each vendor provides so-called > “offline c...