topic Re: DPL functions cannot be correctly linked, is there any other lib required? in Intel® oneAPI DPC++/C++ Compiler

DPL functions cannot be correctly linked, is there any other lib required?

shenuo — Sun, 15 Aug 2021 02:17:54 GMT

Here is my code:

#include <CL/sycl.hpp>
#include <vector>
#include <iostream>
#include <oneapi/dpl/algorithm>
#include <algorithm>

using namespace sycl;

int main(int argc, char* argv[]) {

std::vector<int> a;
a.resize(100);

oneapi::dpl::fill(oneapi::dpl::execution::par_unseq,a.begin(),a.end(),3);

return 0;
}

error LNK2019: unresolved external symbol "void __cdecl oneapi::dpl::fill<class oneapi::dpl::execution::v1::parallel_unsequenced_policy const &,class std::_Vector_iterator<class std::_Vector_val<struct std::_Simple_types<int> > >,int>(class oneapi::dpl::execution::v1::parallel_unsequenced_policy const &,class std::_Vector_iterator<class std::_Vector_val<struct std::_Simple_types<int> > >,class std::_Vector_iterator<class std::_Vector_val<struct std::_Simple_types<int> > >,int const &)" (??$fill@AEBVparallel_unsequenced_policy@v1@execution@dpl@oneapi@@V?$_Vector_iterator@V?$_Vector_val@U?$_Simple_types@H@std@@@std@@@std@@H@dpl@oneapi@@YAXAEBVparallel_unsequenced_policy@v1@execution@01@V?$_Vector_iterator@V?$_Vector_val@U?$_Simple_types@H@std@@@std@@@std@@1AEBH@Z) referenced in function main

my programing environment :

VS2017

oneAPI DPC++ Compiler (2021.3.0)

windows 10

Re: DPL functions cannot be correctly linked, is there any other lib required?

shenuo — Sun, 15 Aug 2021 02:45:41 GMT

problem solved. must contain the <dpl/excution>header, Besides, the tbb.lib also requires to be linked. I didn't found this point mentioned in the tutorial. o_o

Re: DPL functions cannot be correctly linked, is there any other lib required?

ArpitaP_Intel — Mon, 16 Aug 2021 06:13:57 GMT

Hello,

Thanks for reaching out to us.

Glad to know your issue is resolved. It would be a great help if you let us know the tutorial document you are referring.

Thanks!

Re: DPL functions cannot be correctly linked, is there any other lib required?

shenuo — Mon, 16 Aug 2021 06:21:09 GMT

Before You Begin (intel.com) I see from here, Thanks!

Re:DPL functions cannot be correctly linked, is there any other lib required?

ArpitaP_Intel — Wed, 18 Aug 2021 11:55:06 GMT

Hello,

You can get the detailed steps in the below URL

https://software.intel.com/content/www/us/en/develop/documentation/oneapi-dpcpp-library-guide/top/parallel-stl-overview/parallel-stl-usage.html

As your issue is resolved, we are going ahead and closing this thread. If you need any additional information, please post a new question as this thread will no longer be monitored by Intel.

Thanks!