[Trilinos-Users] [EXTERNAL] Segmentation fault in aztecoo with the Intel MKL ilp64 library

John Jomo john.jomo at tum.de
Mon Jun 22 08:18:29 MST 2020


Hallo Siva,

that would explain the segfault. Thanks for the quick reply. I have 
implemented most of my code using the old Trilinos stack and plan to 
switch to the newer stack soon. I now have one more reason to do so.

John

On 22.06.20 16:21, Rajamanickam, Sivasankaran wrote:
> John
>    AztecOO does not support 64-but ordinals. Can you switch to Belos / Tpetra software stack ?
>
> -Siva
>
> ________________________________________
> From: Trilinos-Users <trilinos-users-bounces at trilinos.org> on behalf of John Jomo <john.jomo at tum.de>
> Sent: Monday, June 22, 2020 7:41 AM
> To: trilinos-users at trilinos.org
> Subject: [EXTERNAL] [Trilinos-Users] Segmentation fault in aztecoo with the Intel MKL ilp64 library
>
> Hallo guys,
>
> I am trying to get the AztecOO solvers to run with the MKL ilp64 library
> in intel 2019.  I however get a segfault in the function
> mkl_blas_avx2_xddot () when running my code. The same segfault also
> occurs when running the tests in the AztecOO package.  I used the Intel
> Link line advisor to get the optimal compiler and linker options for my
> machine e.g.
>
> linker options : -L${MKLROOT}/lib/intel64 -Wl,--no-as-needed
> -lmkl_intel_ilp64 -lmkl_intel_thread -lmkl_core -liomp5 -lpthread -lm -ldl
> compiler flag: -DMKL_ILP64 -m64 -I${MKLROOT}/include
>
> I also compiled and run the code on two different architectures
> (Haswell, Skylake) and using gcc/7.3 and icpc 2019 and the segfault
> still persists.
>
> I explicity set the blas library names in my configure file for Trilinos
> e.g.\
>
> -D TPL_ENABLE_BLAS:BOOL=ON \
> -D
> BLAS_LIBRARY_NAMES="mkl_intel_lp64;mkl_intel_thread;iomp5;pthread;mkl_core"
> \
> ...
>
>
> Are there any open issues with the ilp64 library and AztecOO? Changing
> to the lp64 MKL version gets rid of the segfault but slows down other
> parts of my code that rely on MKL and pardiso.
>
> Thanks for the help
>
> John
>
>
> _______________________________________________
> Trilinos-Users mailing list
> Trilinos-Users at trilinos.org
> http://trilinos.org/mailman/listinfo/trilinos-users_trilinos.org

-- 
John Jomo M.Sc.
Technische Universität München
Computation in Engineering
Simulation in Applied Mechanics - SAM
Arcisstraße 21
80333 München
Tel.:     0049 / 89 / 289 25064
Fax:      0049 / 89 / 289 25051
E-Mail:   john.jomo at tum.de<mailto:john.jomo at tum.de>
Internet: www.cie.bgu.tum.de<http://www.cie.bgu.tum.de/>




More information about the Trilinos-Users mailing list