Difficulty using MKL in VSCode

F_L — Fri, 27 Oct 2023 07:58:29 GMT

Hello,

I'm encountering an issue while trying to use Intel Math Kernel Library (MKL) in my C++ project within Visual Studio Code (VSCode).

I have successfully installed Base Toolkit on my windows system, and I'm using the "C/C++ IntelliSense, debugging, and code browsing" extension for VSCode.

The mkl_example.cpp is given below:

#include <Rcpp.h> #include <mkl.h> using namespace Rcpp; // Define the example function // [[Rcpp::export]] List example(Rcpp::NumericVector para) { int n = para.size(); NumericVector result(n); // Get a pointer to the data of the NumericVector const double* para_ptr = para.begin(); // Perform the element-wise addition vdAdd(n, para_ptr, para_ptr, result.begin()); return List::create(_["result"] = result); }

The "c_cpp_properties.json" file contains the following:

{ "configurations": [ { "name": "Win32", "includePath": [ "${workspaceFolder}/**", "C:/Users/user/AppData/Local/R/win-library/4.3/Rcpp/include", "C:/PROGRA~1/R/R-43~1.1/include", "C:/Program Files (x86)/Intel/oneAPI/mkl/latest/include" ], "defines": [ "_DEBUG", "UNICODE", "_UNICODE" ], "compilerPath": "C:\\mingw64\\bin\\gcc.exe", "cStandard": "c17", "cppStandard": "gnu++14", "intelliSenseMode": "windows-gcc-x64" } ], "version": 4 }

I run the following commands:

library(Rcpp) cpp_file <- "C:/Users/user/OneDrive/Documents/VariousCodes/mkl/mkl_example.cpp" sourceCpp(cpp_file) # Create a numeric vector input_vector <- c(1, 2, 3, 4, 5) # Call the C++ function result <- example(input_vector) # 'result' now contains the element-wise addition of 'input_vector'

and get the flowing output:

> source("c:\\Users\\user\\OneDrive\\Documents\\VariousCodes\\$ using C++ compiler: 'G__~1.EXE (GCC) 12.2.0' g++ -std=gnu++17 -I"C:/PROGRA~1/R/R-43~1.1/include" -DNDEBUG -I"C:/Users/user/AppData/Local/R/win-library/4.3/Rcpp/include" -I"C:/Users/user/OneDrive/Documents/VariousCodes/mkl" -I"C:/rtools43/x86_64-w64-mingw32.static.posix/include" -O2 -Wall -mfpmath=sse -msse2 -mstackrealign -c mkl.cpp -o mkl.o g++ -std=gnu++17 -shared -s -static-libgcc -o sourceCpp_2.dll tmp.def mkl.o -LC:/rtools43/x86_64-w64-mingw32.static.posix/lib/x64 -LC:/rtools43/x86_64-w64-mingw32.static.posix/lib -LC:/PROGRA~1/R/R-43~1.1/bin/x64 -lR C:\rtools43\x86_64-w64-mingw32.static.posix\bin/ld.exe: mkl.o:mkl.cpp:(.text+0x3ea): undefined reference to `vdAdd' collect2.exe: error: ld returned 1 exit status Error in sourceCpp(cpp_file) : Error occurred building shared library.

I think that i have included the directory for the Intel oneAPI Math Kernel Library (MKL). In the system environment variables, you have added the following entries to the "Path."

C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\compiler\lib\intel64 C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\compiler\lib\intel64_win C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\compiler\lib\ia32 C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\compiler\lib\ia32_win C:\Program Files (x86)\Intel\oneAPI\tbb\latest\redist\intel64\vc_mt\ C:\Program Files (x86)\Intel\oneAPI\tbb\latest\redist\ia32\vc_mt\ C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\redist\intel64_win\compiler C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\redist\ia32_win\compiler C:\Program Files (x86)\Intel\oneAPI\compiler\2023.2.1\windows\bin

I would appreciate any help.

Re:Difficulty using MKL in VSCode

JilaniS_Intel — Wed, 01 Nov 2023 10:45:12 GMT

Hi Fio,

Thanks for posting in Intel communities.

We regret to say that we will not be able to support you on this R related query. We are not “R” experts.

If you have any query on Intel products, then please raise a new thread in the appropriate forum and we’d be happy to support you. Thank you.

Regards,

Jilani

topic Re:Difficulty using MKL in VSCode in Intel® oneAPI Math Kernel Library

Difficulty using MKL in VSCode

Re:Difficulty using MKL in VSCode