Ilmar Wilbers wrote: >>> The demos are linked to lapack because umfpack needs to be linked to >>> lapack. >> I thought that umfpack required blas. > That is true, we are looking into this now.
I added '-lblas' before -llapack' in umfpack.py and this fixed the problem. I looks like 'ATL_dGetNB' is part of the ATLAS implementation of BLAS. In trilinos.py, there is a FIXME question regarding whether or not it's necessary to link with BLAS when linking to lapack. It looks BLAS is needed. Garth >> I haven't had any success when installing atlas3-base-dev or setting >> ATLAS_DIR. I only see the problem when running the SLEPc demo. From >> 'ldd demo' I get >> > Did you generate a new umfpack.pc? > > ilmar >> liblapack.so.3 => /usr/lib/atlas/liblapack.so.3 (0xb6821000) >> >> Garth >> >> Maybe I didn't understand you question properly? >>> ilmar >>> >>> Garth N. Wells wrote: >>>> Can you remind me why DOLFIN is linked to lapack? I recall a thread >>>> on this a few weeks ago. >>>> >>>> Garth >>>> >>>> Ilmar Wilbers wrote: >>>>> I discussed the same issue with Anders earlier. The sse2 version >>>>> does not install in /usr/lib/atlas as expected. Try setting >>>>> ATLAS_DIR, or, perhaps better, install atlas3-base-dev instead og >>>>> atlas3-sse2-dev >>>>> >>>>> ilmar >>>>> >>>>> Garth N. Wells wrote: >>>>>> Has anyone tried running the demo that uses SLEPc >>>>>> (demo/la/eigensolver/cpp)? When I run it, I get >>>>>> >>>>>> ./demo: symbol lookup error: >>>>>> /usr/lib/atlas/sse2/liblapack.so.3: undefined symbol: ATL_dGetNB >>>>>> >>>>>> Any ideas? >>>>>> >>>>>> Garth >>>>>> _______________________________________________ >>>>>> DOLFIN-dev mailing list >>>>>> [email protected] >>>>>> http://www.fenics.org/mailman/listinfo/dolfin-dev >>>>>> >>>>> _______________________________________________ >>>>> DOLFIN-dev mailing list >>>>> [email protected] >>>>> http://www.fenics.org/mailman/listinfo/dolfin-dev >>> _______________________________________________ >>> DOLFIN-dev mailing list >>> [email protected] >>> http://www.fenics.org/mailman/listinfo/dolfin-dev > _______________________________________________ > DOLFIN-dev mailing list > [email protected] > http://www.fenics.org/mailman/listinfo/dolfin-dev _______________________________________________ DOLFIN-dev mailing list [email protected] http://www.fenics.org/mailman/listinfo/dolfin-dev
