topic Yes this command "dpcpp -o in Intel® oneAPI DPC++/C++ Compiler

Compile error for oneAPI Base Toolkit

nnain1 — Thu, 19 Dec 2019 13:50:22 GMT

I have installed oneAPI at my system with Ubuntu 18.04 LTS, Intel® Xeon(R) CPU E5-1620 v4 @ 3.50GHz × 8, Quadro P4000/PCIe/SSE2, gcc/g++5.4.

When I make all, the errors are

dpcpp -o vector-add.exe src/vector-add.cpp -lOpenCL -lsycl
/opt/intel/inteloneapi/compiler/2021.1-beta03/linux/bin/../lib/libsycl.so: undefined reference to `clCreateProgramWithIL@OPENCL_2.1'
/opt/intel/inteloneapi/compiler/2021.1-beta03/linux/bin/../lib/libsycl.so: undefined reference to `clGetKernelSubGroupInfo@OPENCL_2.1'
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
Makefile:10: recipe for target 'main' failed
make: *** [main] Error 1

What could be wrong?

Hi Naing,

Kaleem_A_Intel — Fri, 20 Dec 2019 04:42:15 GMT

Hi Naing,

Thanks for reaching out to us.

We are working on this issue and will get back to you.

Kaleem

Hi,

AbhishekD_Intel — Fri, 20 Dec 2019 10:54:11 GMT

Hi,

This error is due to conflicting libOpenCL.so, I will suggest you to properly uninstall everything and re-install beta03 base toolkit and then it will work.

-Abhishek

Hi,

Dmitry_Savin — Sat, 21 Dec 2019 15:49:00 GMT

Hi, You may also need to uninstall the Intel OpenCL runtime from the Ubuntu repository (package ocl-icd-libopencl1). The one that comes with the basekit is more recent even compared to the latest Ububtu (19.10). You can check which library is used by running > ldd /opt/intel/inteloneapi/compiler/latest/linux/lib/libsycl.so | grep OpenCL If you did not run > source /opt/intel/inteloneapi/setvars.sh it may point to /usr/lib/x86_64-linux-gnu/libOpenCL.so.1 or some other library and /opt/intel/inteloneapi/compiler/latest/linux/lib/libOpenCL.so.1 otherwise. You can check the supported version and symbols by running > nm -gD libOpenCL.so.1 | grep 'OPENCL\|clGetKernelSubGroupInfo' on each of the found libraries. -Dmitry

Thanks a lot.

nnain1 — Sun, 22 Dec 2019 13:02:47 GMT

Thanks a lot.

Hi,

AbhishekD_Intel — Mon, 23 Dec 2019 05:56:06 GMT

Hi,

Let us know if it worked for you and get back to us if you faced any issue.

-Abhishek

The old installation was

nnain1 — Wed, 25 Dec 2019 15:56:39 GMT

The old installation was removed and reinstall new one following the instructions in the link.

But still have the same error when I make all.

coie@coie-HP-Z440-Workstation:~/Data/coie/Softwares/oneAPI/dpc++/module04/Lab_module4/devcon/complex_mult$ make all
dpcpp lab/complex_mult.cpp -o bin/complex_mult -Isrc/ -lOpenCL -lsycl
/opt/intel/inteloneapi/compiler/2021.1-beta03/linux/bin/../lib/libsycl.so: undefined reference to `clCreateProgramWithIL@OPENCL_2.1'
/opt/intel/inteloneapi/compiler/2021.1-beta03/linux/bin/../lib/libsycl.so: undefined reference to `clGetKernelSubGroupInfo@OPENCL_2.1'
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
Makefile:13: recipe for target 'main' failed
make: *** [main] Error 1

Following one of the suggestions above to check opencl and output is as follow.

coie@coie-HP-Z440-Workstation:~/Data/coie/Softwares/oneAPI/dpc++/module04/Lab_module4/devcon/complex_mult$ ldd /opt/intel/inteloneapi/compiler/latest/linux/lib/
libsycl.so | grep OpenCL
libOpenCL.so.1 => /opt/intel/inteloneapi/compiler/latest/linux/lib/libOpenCL.so.1 (0x00007feb9bdde000)

Why I still can't compile the project?

What does

Dmitry_Savin — Wed, 25 Dec 2019 18:50:29 GMT

What does

nm -gD /opt/intel/inteloneapi/compiler/latest/linux/lib/libOpenCL.so.1 | grep 'OPENCL\|clGetKernelSubGroupInfo\|clCreateProgramWithIL'

show you?

-Dmitry

UPD: In the DevCloud the command does not work, had to do in two steps: nm -gD /opt/intel/inteloneapi/compiler/latest/linux/lib/libOpenCL.so.1> out grep 'OPENCL\|clGetKernelSubGroupInfo\|clCreateProgramWithIL' out

naing,

Jie_L_Intel — Thu, 26 Dec 2019 03:33:50 GMT

naing, use this command to build "dpcpp -o vector-add.exe src/vector-add.cpp"

Yes this command "dpcpp -o

nnain1 — Thu, 26 Dec 2019 15:18:21 GMT

Yes this command "dpcpp -o vector-add.exe src/vector-add.cpp" can build exe file. Thanks.

make all doesn't work.

This command

nnain1 — Thu, 26 Dec 2019 15:19:56 GMT

This command

nm -gD /opt/intel/inteloneapi/compiler/latest/linux/lib/libOpenCL.so.1 | grep 'OPENCL\|clGetKernelSubGroupInfo\|clCreateProgramWithIL'

gave
00000000000046f0 T clCreateProgramWithIL
0000000000004720 T clGetKernelSubGroupInfo
0000000000000000 A OPENCL_1.0
0000000000000000 A OPENCL_1.1
0000000000000000 A OPENCL_1.2
0000000000000000 A OPENCL_2.0
0000000000000000 A OPENCL_2.1
0000000000000000 A OPENCL_2.2

naing,

Joey__Wang — Mon, 30 Dec 2019 07:17:46 GMT

naing,

Try change ./src/CMakeLists.txt:target_link_libraries(complex_mult OpenCL sycl)

to ./src/CMakeLists.txt:target_link_libraries(complex_mult sycl)

I found same issue on HPCKit-code-samples..

Hi Naing,

AbhishekD_Intel — Mon, 30 Dec 2019 09:51:35 GMT

Hi Naing,

Let us know if we can close this thread, you are always welcome to raise a new thread.

-Abhishek

Yes please go ahead. Removing

nnain1 — Sat, 04 Jan 2020 04:51:21 GMT

Yes please go ahead. Removing opencl flag in makefile solved the issue.

Hi Naing,

Sushma_P_Intel — Tue, 07 Jan 2020 05:29:22 GMT

Hi Naing,

Hope your issue is resolved. We are closing this thread. You can always reach out to us for other queries in a new thread.

Regards

Sushma.