Link issue for parallel oneMKL

LaurentPlagne — Fri, 21 Aug 2020 09:03:27 GMT

Hi,

I am able to compile the joined snippet with the sequential version of oneMKL

dpcpp -O3 -fsycl -std=c++17 -DMKL_ILP64 -g -DNDEBUG -lOpenCL -lsycl -lmkl_sycl -lmkl_core -lmkl_sequential -lmkl_intel_lp64 ../src/portable_main.cpp

but it fails when I try to use the parallel version. I tried to follow this for the link options;

dpcpp -lmkl_sycl -lmkl_intel_ilp64 -lmkl_tbb_thread -lmkl_core -lsycl -lOpenCL -ltbb -lpthread -ldl -lm ../src/portable_main.cpp

which results in numerous undefined references :

/usr/bin/ld : /opt/intel/oneapi/mkl/2021.1-beta08/lib/intel64/libmkl_tbb_thread.so : référence indéfinie vers « tbb::detail::r1::wait_bounded_queue_monitor(tbb::detail::r1::concurrent_monitor*, unsigned long, long, tbb::detail::d1::delegate_base&) » /usr/bin/ld : /opt/intel/oneapi/mkl/2021.1-beta08/lib/intel64/libmkl_tbb_thread.so : référence indéfinie vers « tbb::detail::r1::execute_and_wait(tbb::detail::d1::task&, tbb::detail::d1::task_group_context&, tbb::detail::d1::wait_context&, tbb::detail::d1::task_group_context&) » /usr/bin/ld : /opt/intel/oneapi/mkl/2021.1-beta08/lib/intel64/libmkl_tbb_thread.so : référence indéfinie vers « tbb::detail::r1::cache_aligned_deallocate(void*) » /usr/bin/ld : /opt/intel/oneapi/mkl/2021.1-beta08/lib/intel64/libmkl_tbb_thread.so : référence indéfinie vers « tbb::detail::r1::terminate(tbb::detail::d1::task_arena_base&) » ...

Here is the file portable_main.cpp

#include <fstream> #include <iostream> #include <CL/sycl.hpp> #include <chrono> #include <cmath> #include <cstring> #include <stdio.h> #include <iostream> #include <random> #include <fstream> #include <chrono> #include "mkl_sycl.hpp" #include "dpc_common.hpp" using namespace cl::sycl; using namespace std; constexpr size_t NITER=100; //amortize device/host communication using Scalar=float; template <class T> void bench_axpy(size_t N){ std::vector<T> a(N,1); std::vector<T> b(N,2); gpu_selector device_selector; queue q(device_selector, dpc_common::exception_handler); auto start=std::chrono::high_resolution_clock::now(); { // Begin buffer scope buffer buf_a(&a[0], range(N));// Create buffers using DPC++ class buffer buffer buf_b(&b[0], range(N)); const T alpha=0.5; try{ for (size_t iter=0; iter<NITER; iter++) { mkl::blas::axpy(q, N, alpha, buf_a, 1, buf_b, 1); } } catch(cl::sycl::exception const& e) { std::cout << "\t\tCaught synchronous SYCL exception during AXPY:\n" << e.what() << std::endl; } } auto end = std::chrono::high_resolution_clock::now(); std::chrono::duration<double> elapsed_seconds = end-start; double time = elapsed_seconds.count(); double GBs=double(3*N)*sizeof(T)*NITER/(time*1.e9);//2R+1W std::cout <<"GBs="<<GBs<<std::endl; } int main(int argc, char* argv[]) { bench_axpy<float>(2<<27); return 0; }

Re:Link issue for parallel oneMKL

GouthamK_Intel — Mon, 24 Aug 2020 09:06:17 GMT

Hi,

Thanks for reaching out to us!

Since your issue is related to oneMKL, we are moving this query to the Intel® oneAPI Math Kernel Library & Intel® Math Kernel Library forum for a faster response.

Regards

Goutham

Re: Re:Link issue for parallel oneMKL

LaurentPlagne — Thu, 27 Aug 2020 19:56:39 GMT

Do you have a suggestion for this link issue ?

Re:Link issue for parallel oneMKL

Ruqiu_C_Intel — Wed, 30 Dec 2020 05:51:27 GMT

Dear Laurent Plagne,

Intel oneAPI 2021.1 was officially released in Dec 8th. Have you tried it? And let us know if the link issue is still exist.

Regards,

Ruqiu

Re: Link issue for parallel oneMKL

Ruqiu_C_Intel — Tue, 11 May 2021 08:59:17 GMT

We will no longer respond to this thread. If you require additional assistance from Intel, please start a new thread. Any further interaction in this thread will be considered community only. Thanks

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Link issue for parallel oneMKL

Re:Link issue for parallel oneMKL

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Re:Link issue for parallel oneMKL

Re: Link issue for parallel oneMKL