Re: [Starpu-devel] hwloc detection problem when configuring starpu-svn-trunk and starpu-1.2.0rc5

["Lucas M. Schnorr" <schnorr@inf.ufrgs.br>]

Hello Nathalie,

On 08/18/2016 01:55 AM, Nathalie Furmento wrote:
> Ok, it seems that hwloc has been compiled with OpenCL. Here the error when 
> configure checks the availability of the hwloc library.
>
> configure:35295: /home/lschnorr/spack-orion/lib/spack/env/gcc/gcc -o conftest -O3 -g 
> -O2 -gdwarf-2 -g3    -D_GNU_SOURCE  
> -I/home/lschnorr/spack-orion/opt/spack/linux-x86_64/gcc-6.1.0/hwloc-1.11.3-j3wlufl4afo5kvid3vv4rutn55ljz2nx/include
>   -gdwarf-2 -g3  
> -L/home/lschnorr/spack-orion/opt/spack/linux-x86_64/gcc-6.1.0/hwloc-1.11.3-j3wlufl4afo5kvid3vv4rutn55ljz2nx/lib
>  conftest.c -lhwloc  -lrt -lm -lpthread  >&5
> /home/lschnorr/spack-orion/opt/spack/linux-x86_64/gcc-6.1.0/hwloc-1.11.3-j3wlufl4afo5kvid3vv4rutn55ljz2nx/lib/libhwloc.so:
>  undefined reference to `clGetPlatformIDs@OPENCL_1.0'
> /home/lschnorr/spack-orion/opt/spack/linux-x86_64/gcc-6.1.0/hwloc-1.11.3-j3wlufl4afo5kvid3vv4rutn55ljz2nx/lib/libhwloc.so:
>  undefined reference to `clGetDeviceIDs@OPENCL_1.0'
> /home/lschnorr/spack-orion/opt/spack/linux-x86_64/gcc-6.1.0/hwloc-1.11.3-j3wlufl4afo5kvid3vv4rutn55ljz2nx/lib/libhwloc.so:
>  undefined reference to `clGetPlatformInfo@OPENCL_1.0'
> /home/lschnorr/spack-orion/opt/spack/linux-x86_64/gcc-6.1.0/hwloc-1.11.3-j3wlufl4afo5kvid3vv4rutn55ljz2nx/lib/libhwloc.so:
>  undefined reference to `clGetDeviceInfo@OPENCL_1.0'
>
> The dirty fix would be to modify configure.ac and add the proper -l and -L 
> options for OpenCL. Or better, set LDFLAGS with the appropriate value.
>
> A better way would be to use pkgconfig to get the correct flags to use when 
> compiling/linking with hwloc. Could you please send me the contents of the 
> file
> /home/lschnorr/spack-orion/opt/spack/linux-x86_64/gcc-6.1.0/hwloc-1.11.3-j3wlufl4afo5kvid3vv4rutn55ljz2nx/lib/pkgconfig/hwloc.pc

Sure, here it goes (hwloc.pc).

Let me know (on which version/trunk) when it is done so I can test again.

Thanks
Lucas


> I will see how to modify configure.ac to use pkgconfig.
>
> Thanks,
>
> Nathalie
>
> On Aug 17, 17:02, Lucas M. Schnorr wrote:
>
> > Hi Nathalie,
> >
> > On 08/17/2016 04:02 PM, Nathalie Furmento wrote:
> > > Could you also please send the config.log file of StarPU?
> > Attached to this e-mail.
> >
> > > configure.ac checks the availability of the library with
> > >
> > >         LDFLAGS="${SAVED_LDFLAGS} -L$hwloc_dir/lib"
> > > AC_HAVE_LIBRARY([hwloc],[have_valid_hwloc=yes],[have_valid_hwloc=no])
> > >
> > > Could you check the contents of the directory 
> > > /home/lschnorr/spack-orion/opt/spack/linux-x86_64/gcc-6.1.0/hwloc-1.11.3-j3wlufl4afo5kvid3vv4rutn55ljz2nx/lib
> > > ?
> > Here are the contents:
> >
> > lschnorr@orion-4:~/spack-orion$ find 
> > /home/lschnorr/spack-orion/opt/spack/linux-x86_64/gcc-6.1.0/hwloc-1.11.3-j3wlufl4afo5kvid3vv4rutn55ljz2nx/lib
> > /home/lschnorr/spack-orion/opt/spack/linux-x86_64/gcc-6.1.0/hwloc-1.11.3-j3wlufl4afo5kvid3vv4rutn55ljz2nx/lib
> > /home/lschnorr/spack-orion/opt/spack/linux-x86_64/gcc-6.1.0/hwloc-1.11.3-j3wlufl4afo5kvid3vv4rutn55ljz2nx/lib/libhwloc.so
> > /home/lschnorr/spack-orion/opt/spack/linux-x86_64/gcc-6.1.0/hwloc-1.11.3-j3wlufl4afo5kvid3vv4rutn55ljz2nx/lib/libhwloc.la
> > /home/lschnorr/spack-orion/opt/spack/linux-x86_64/gcc-6.1.0/hwloc-1.11.3-j3wlufl4afo5kvid3vv4rutn55ljz2nx/lib/pkgconfig
> > /home/lschnorr/spack-orion/opt/spack/linux-x86_64/gcc-6.1.0/hwloc-1.11.3-j3wlufl4afo5kvid3vv4rutn55ljz2nx/lib/pkgconfig/hwloc.pc
> > /home/lschnorr/spack-orion/opt/spack/linux-x86_64/gcc-6.1.0/hwloc-1.11.3-j3wlufl4afo5kvid3vv4rutn55ljz2nx/lib/libhwloc.so.5
> > /home/lschnorr/spack-orion/opt/spack/linux-x86_64/gcc-6.1.0/hwloc-1.11.3-j3wlufl4afo5kvid3vv4rutn55ljz2nx/lib/libhwloc.so.5.7.0
> >
> > A+
> > Lucas
> >
> > --
> > Lucas M. Schnorr, UFRGS
> > http://www.inf.ufrgs.br/~schnorr/
> --
> ----------------------------------------------------------------------------
> Dr Nathalie Furmento                         Ingénieur de recherche CNRS
> Centre de Recherche INRIA Bordeaux Sud-Ouest http://www.labri.fr/~furmento/
> 200 avenue de la vieille Tour                Tel: +33 (0)5 24 57 41 20
> 33405 Talence cedex, FRANCE                  Fax: +33 (0)5 24 57 40 41
> ----------------------------------------------------------------------------


--
Lucas M. Schnorr, UFRGS
http://www.inf.ufrgs.br/~schnorr/

prefix=/home/lschnorr/spack-orion/opt/spack/linux-x86_64/gcc-6.1.0/hwloc-1.11.3-j3wlufl4afo5kvid3vv4rutn55ljz2nx
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include

Name: hwloc
Description: Hardware locality detection and management library
Version: 1.11.3
Requires.private:  
Cflags: -I${includedir}
Libs: -L${libdir} -lhwloc
Libs.private: -lm  -lnuma -lOpenCL  -lpthread