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Undefined reference (Centos 7)

RN1
New Contributor I
‎03-23-2021 04:02 AM
4,518 Views

Any idea why I cannot compile with dpcpp in centos 7?


$ dpcpp -std=c++17 -O3 -fsycl code.cpp
/opt/rh/devtoolset-9/root/usr/lib/gcc/x86_64-redhat-linux/9/../../../../bin/ld: /tmp/user/code-3c6697.o: in function `main':
mardyn_cpu.cpp:(.text+0x2): undefined reference to `omp_get_thread_num'
/opt/rh/devtoolset-9/root/usr/lib/gcc/x86_64-redhat-linux/9/../../../../bin/ld: /opt/intel/oneapi/compiler/2021.1.1/linux/bin/../lib/libsycl.so: undefined reference to `VTT for std::__cxx11::basic_stringstream<char, std::char_traits<char>, std::allocator<char> >@GLIBCXX_3.4.21'
/opt/rh/devtoolset-9/root/usr/lib/gcc/x86_64-redhat-linux/9/../../../../bin/ld: /opt/intel/oneapi/compiler/2021.1.1/linux/bin/../lib/libsycl.so: undefined reference to `std::thread::_State::~_State()@GLIBCXX_3.4.22'
/opt/rh/devtoolset-9/root/usr/lib/gcc/x86_64-redhat-linux/9/../../../../bin/ld: /opt/intel/oneapi/compiler/2021.1.1/linux/bin/../lib/libsycl.so: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_assign(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)@GLIBCXX_3.4.21'
...

$ gcc --version
gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ ld --version
GNU ld version 2.27-43.base.el7_8.1
Copyright (C) 2016 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) a later version.
This program has absolutely no warranty.


$ ldd /opt/intel/oneapi/compiler/2021.1.1/linux/lib/libsycl.so
/opt/intel/oneapi/compiler/2021.1.1/linux/lib/libsycl.so: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by /opt/intel/oneapi/compiler/2021.1.1/linux/lib/libsycl.so)
/opt/intel/oneapi/compiler/2021.1.1/linux/lib/libsycl.so: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by /opt/intel/oneapi/compiler/2021.1.1/linux/lib/libsycl.so)
/opt/intel/oneapi/compiler/2021.1.1/linux/lib/libsycl.so: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.22' not found (required by /opt/intel/oneapi/compiler/2021.1.1/linux/lib/libsycl.so)
        linux-vdso.so.1 =>  (0x00007fff5846b000)
        libdl.so.2 => /lib64/libdl.so.2 (0x00007f69f16d0000)
        libOpenCL.so.1 => /opt/intel/oneapi/compiler/2021.1.1/linux/lib/libOpenCL.so.1 (0x00007f69f1d4a000)
        libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f69f14b4000)
        libsvml.so => /opt/intel/oneapi/compiler/2021.1.1/linux/compiler/lib/intel64_lin/libsvml.so (0x00007f69ef9b7000)
        libirng.so => /opt/intel/oneapi/compiler/2021.1.1/linux/compiler/lib/intel64_lin/libirng.so (0x00007f69ef64d000)
        libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007f69ef346000)
        libimf.so => /opt/intel/oneapi/compiler/2021.1.1/linux/compiler/lib/intel64_lin/libimf.so (0x00007f69eecbe000)
        libm.so.6 => /lib64/libm.so.6 (0x00007f69ee9bc000)
        libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f69ee7a6000)
        libintlc.so.5 => /opt/intel/oneapi/compiler/2021.1.1/linux/compiler/lib/intel64_lin/libintlc.so.5 (0x00007f69ee52e000)
        libc.so.6 => /lib64/libc.so.6 (0x00007f69ee160000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f69f1b42000)

        linux-vdso.so.1 =>  (0x00007fff5846b000)
        libdl.so.2 => /lib64/libdl.so.2 (0x00007f69f16d0000)
        libOpenCL.so.1 => /opt/intel/oneapi/compiler/2021.1.1/linux/lib/libOpenCL.so.1 (0x00007f69f1d4a000)
        libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f69f14b4000)
        libsvml.so => /opt/intel/oneapi/compiler/2021.1.1/linux/compiler/lib/intel64_lin/libsvml.so (0x00007f69ef9b7000)
        libirng.so => /opt/intel/oneapi/compiler/2021.1.1/linux/compiler/lib/intel64_lin/libirng.so (0x00007f69ef64d000)
        libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007f69ef346000)
        libimf.so => /opt/intel/oneapi/compiler/2021.1.1/linux/compiler/lib/intel64_lin/libimf.so (0x00007f69eecbe000)
        libm.so.6 => /lib64/libm.so.6 (0x00007f69ee9bc000)
        libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f69ee7a6000)
        libintlc.so.5 => /opt/intel/oneapi/compiler/2021.1.1/linux/compiler/lib/intel64_lin/libintlc.so.5 (0x00007f69ee52e000)
        libc.so.6 => /lib64/libc.so.6 (0x00007f69ee160000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f69f1b42000)

 

I tried also using LD_LIBRARY_PATH to a different compiler version:

$ LD_LIBRARY_PATH=/home/user/gcc/gcc_install_dir/lib64 ldd /opt/intel/oneapi/compiler/2021.1.1/linu
x/lib/libsycl.so
        linux-vdso.so.1 =>  (0x00007fff819ab000)
        libdl.so.2 => /lib64/libdl.so.2 (0x00007fab67a01000)
        libOpenCL.so.1 => /opt/amdgpu-pro/lib64/libOpenCL.so.1 (0x00007fab6807a000)
        libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fab677e5000)
        libsvml.so => not found
        libirng.so => not found
        libstdc++.so.6 => /home/user/gcc/gcc_install_dir/lib64/libstdc++.so.6 (0x00007fab67464000)
        libimf.so => not found
        libm.so.6 => /lib64/libm.so.6 (0x00007fab67162000)
        libgcc_s.so.1 => /home/user/gcc/gcc_install_dir/lib64/libgcc_s.so.1 (0x00007fab66f4b000)
        libintlc.so.5 => not found
        libc.so.6 => /lib64/libc.so.6 (0x00007fab66b7d000)
        /lib64/ld-linux-x86-64.so.2 (0x00007fab67e73000)

$ ~/gcc/gcc_install_dir/bin/gcc --version
gcc (GCC) 7.2.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ LD_LIBRARY_PATH=/home/user/gcc/gcc_install_dir/lib64:/usr/local/lib:/usr/lib:/usr/local/lib64:/us
r/lib64:$LD_LIBRARY_PATH dpcpp -std=c++17 -O3 -fsycl code.cpp
/opt/rh/devtoolset-9/root/usr/lib/gcc/x86_64-redhat-linux/9/../../../../bin/ld: /tmp/user/mardyn_cpu-da40aa.o: in function `main':
mardyn_cpu.cpp:(.text+0x2): undefined reference to `omp_get_thread_num'
/opt/rh/devtoolset-9/root/usr/lib/gcc/x86_64-redhat-linux/9/../../../../bin/ld: /opt/intel/oneapi/compiler/2021.1.1/linux/bin/../lib/libsycl.so: undefined reference to `VTT for std::__cxx11::basic_stringstream<char, std::char_traits<char>, std::allocator<char> >@GLIBCXX_3.4.21'
/opt/rh/devtoolset-9/root/usr/lib/gcc/x86_64-redhat-linux/9/../../../../bin/ld: /opt/intel/oneapi/compiler/2021.1.1/linux/bin/../lib/libsycl.so: undefined reference to `std::thread::_State::~_State()@GLIBCXX_3.4.22'
/opt/rh/devtoolset-9/root/usr/lib/gcc/x86_64-redhat-linux/9/../../../../bin/ld: /opt/intel/oneapi/compiler/2021.1.1/linux/bin/../lib/libsycl.so: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_assign(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)@GLIBCXX_3.4.

 

The code itself it is just a test. I know I will have to use `-fopenmp`, etc. But currently it does not compile even the simplest hello-world.

 

#include <omp.h>
#include <cstdio>

int main(int argc, char* argv[]) {
#pragma omp parallel
  {
    printf("thread id %d\n", omp_get_thread_num());
  }
  return 0;
}

 

This compiles in another system with ubuntu, but not with centos.

Tested also with `scl enable devtoolset-9 -- bash` and it emits the same error (undefined... GLIBCXX_3.4.21/20/22). Gcc 9.3.1

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3 Replies
AbhishekD_Intel
Moderator
‎03-24-2021 06:06 AM
4,485 Views

Hi Raul,


Thanks for the detailed information.

Unfortunately, DPC++ does not support CentOS 7 as of now. For more details please refer to the following link:

https://software.intel.com/content/www/us/en/develop/articles/intel-oneapi-dpcpp-system-requirements.html


CentOS 8.x is supported as of now for CPU as a host/target. Please check the above link for more details regarding supported OS for the DPC++ compiler.



Warm Regards,

Abhishek


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AbhishekD_Intel
Moderator
‎04-05-2021 01:20 AM
4,463 Views

Hi,


Please give us an update on the provided details.


Warm Regards,

Abhishek


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AbhishekD_Intel
Moderator
‎04-12-2021 05:43 AM
4,449 Views

Hi,


As we haven't heard back from you, we are considering that your issue has been resolved.

We will no longer monitor this thread. If you require any additional assistance from Intel, please post a new thread. 

Any further interaction in this thread will be considered community only.


Warm Regards,

Abhishek



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