[deal.II] Re: Installation on cray XC50 | linking to petsc, lapack and blas libraries with different names

I have found few reports of glibc version 2.28 causing such behaviour (e.g. see here ). It might be possible that /lib64/ld-linux-x86-64.so.2 on our system "links" to this version of glibc. But it actually is a static library: $ ldd -v ld-linux-x86-64.so.2

[deal.II] Re: Installation on cray XC50 | linking to petsc, lapack and blas libraries with different names

This is the full backtrace with gdb. (gdb) bt #0 __static_initialization_and_destruction_0 (__initialize_p=1, __priority=65535) at /home/ComptGasDynLab/vachanpotluri/source/dealii-9.1.1/source/numerics/time_dependent.cc:1196 #1 0x7fffec1aa6f8 in _GLOBAL__sub_I_time_dependent.cc(void) ()

Re: [deal.II] Running multiple programs at the same time

On 2/12/20 3:13 AM, Toni Vidal wrote: - Matrix-free methods would have this problems minimised? Maybe. Probably. - Will this affect also to MPI parallelization scalability in this computer? Yes. That's one of the issues with having modern many-core chips and running lots of MPI processes o

[deal.II] Re: Installation on cray XC50 | linking to petsc, lapack and blas libraries with different names

Vachan, On Wednesday, February 12, 2020 at 12:24:38 AM UTC-5, vachan potluri wrote: > > Step-1 aborts with Illegal Instruction (core dumped). The error msg gdb > prints is the following. > Program received signal SIGILL, Illegal instruction. > __static_initialization_and_destruction_0 (__initiali

Re: [deal.II] Re: Problem installing Dealii-9.0.0

Hi Bruno, and Dan, Great ! I successfully installed dealii 9.0.0. on my cluster. I paste below the finishing line and the tests it passed. Thanks a lot for your crucial support. Thanks Bruno for your specific instructions. I guess any subsequent potential issu

Re: [deal.II] Running multiple programs at the same time

Hello Wolfgang, The memory bus bandwidth seems the most reliable answer. But two more questions arise: - Matrix-free methods would have this problems minimised? - Will this affect also to MPI parallelization scalability in this computer? Regards, Toni El dimarts, 11 febrer de 2020 22:37:31 UT

Re: [deal.II] Running multiple programs at the same time

Hi Ahmad, I commented the output results method but it is the times did not change significantly. Toni El dimarts, 11 febrer de 2020 22:40:42 UTC+1, Ahmad Shahba va escriure: > > I was just wondering how much I/O operations contribute to your timings. > What would happen if you minimize the I/