[petsc-dev] building with MKL

[Smith, Barry F.]

   Can you please do

nm -o /opt/intel/compilers_and_libraries_2018.1.163/linux/mkl/lib/intel64/*.* | grep mkl_blas_dtrsm


> On Jul 1, 2018, at 3:14 PM, Mark Adams <mfadams at lbl.gov> wrote:
> 
> Sorry, I've sent several today.
> 
> On Sun, Jul 1, 2018 at 2:59 PM Smith, Barry F. <bsmith at mcs.anl.gov> wrote:
> 
>    Mark,
> 
>     You need to send the full configure.log (it if doesn't fit for petsc-dev, better to send it to petsc-maint that doesn't mind big attachments.
> 
>    Barry
> 
> 
> > On Jul 1, 2018, at 1:49 PM, Mark Adams <mfadams at lbl.gov> wrote:
> > 
> > 
> > 
> > On Sun, Jul 1, 2018 at 1:43 PM Victor Eijkhout <eijkhout at tacc.utexas.edu> wrote:
> > 
> > 
> >> On Jul 1, 2018, at 12:30 PM, Jeff Hammond <jeff.science at gmail.com> wrote:
> >> 
> >> If you really want to do this, then replace COMMON with CORE to specialize for SKX. There’s not point to using COMMON if you’ve got the MIC path already.
> >> 
> > 
> > We advocate CORE on our userguides, but the Intel compiler crashes reliably with that in certain cases. I think in particular Intel has never figured out how complex numbers work. If the compiler crashes it’s always on the petsc complex mode. I think I have submitted tickets about that, so maybe it’s fixed in update 3.
> > 
> > I have also seen cases where CORE gives numerical problems and replacing by COMMON fixed them. Sorry, that was a user ticket and having solved it I didn’t bother to submit an Intel support ticket.
> > 
> > I have unconfirmed reports of numerical problems. I will try your flags if I can reproduce them. Any other tricks that you used to get MKL/PETSc to work?
> > 
> > Also, PETSc is having problems finding libs. I get this error that it can not find -blas and I see that there is a libmkl_blas95_ilp64.a and libmkl_blas95_lp64.a, but no libblas.a.
> > 
> > I'm stuck, any help would be appreciated,
> > 
> > Thanks,
> > Mark
> > 
> > Executing: cc  -o /tmp/petsc-WPf2VB/config.libraries/conftest     -g -O0 -hcpu=mic-knl -qopenmp-simd -fopenmp /tmp/petsc-WPf2VB/config.libraries/conftest.o  -Wl,-rpath,/opt/intel/compilers_and_libraries_2018.1.163/linux/mkl/lib/intel64 -L/opt/intel/compilers_and_libraries_2018.1.163/linux/mkl/lib/intel64 -lblas -lstdc++ -ldl 
> > Possible ERROR while running linker: exit code 256
> > stderr:
> > /usr/lib64/gcc/x86_64-suse-linux/4.8/../../../../x86_64-suse-linux/bin/ld: cannot find -lblas
> >                     Popping language C
> >               Unknown name mangling in BLAS/LAPACK
> > **** Configure header /tmp/petsc-WPf2VB/confdefs.h ****
> > #if !defined(INCLUDED_UNKNOWN)
> >  
> > 
> > The support website is a nightmare anyway, so I’m not overly motivated to submit support tickets in the first place.
> > 
> > Victor.
> 
> <configure.log>