[petsc-users] configure error on Titan with Intel

[Matthew Knepley]

On Mon, May 11, 2015 at 6:55 PM, Mark Adams <mfadams at lbl.gov> wrote:

> More Titan fun.  I have built for PGI on Titan but tests are failing to
> build: -lhwloc?
>
> cc -mp -fast  -o ex56 ex56.o
> -L/autofs/na3_home1/adams/petsc_master_opt64idx_pgi/lib  -lpetsc
> -Wl,-rpath,/opt/pgi/14.2.0/linux86/5.1/lib
> -L/opt/pgi/14.2.0/linux86/5.1/lib -llapack -lblas
> -Wl,-rpath,/autofs/na3_home1/adams/petsc_master_opt64idx_pgi/lib
> -L/autofs/na3_home1/adams/petsc_master_opt64idx_pgi/lib -lparmetis -lmetis
> -lhwloc -lssl -lcrypto -ldl -lstdc++
> /usr/bin/ld: cannot find -lhwloc
> make: [ex56] Error 2 (ignored)
> /
>

Barry had hwloc autoinstalling, but then we talked him out of it. You need
to clean things out and build again, since it
thinks that it is still there.

  Matt


> On Fri, May 8, 2015 at 5:51 PM, Jed Brown <jed at jedbrown.org> wrote:
>
>> Satish Balay <balay at mcs.anl.gov> writes:
>>
>> > Also - Perhaps with intel compilers - the recommended blas is
>> > something other than ACML? [like MKL?]. Something to check..
>>
>> MKL (and anything built using the Intel compiler) has the "run slower on
>> AMD" feature.  For any given operation, ACML won't necessarily be
>> faster, but at least it's not intentionally crippled.  For most of what
>> PETSc does, any such MKL/ACML difference is irrelevant.
>>
>
>


-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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