[aspect-devel] ": internal error: ** The compiler has encountered an unexpected problem.

[John Naliboff]

Hi Lev,

Glad to hear the compilation worked. An anecdotal word of caution with 
regard to the intel optimization levels - with a different code we found 
some of our benchmarks were not passing when we switched from level 2 to 
level 3 optimization. That may not be the case here, but perhaps 
something to watch out for.

Cheers,
John

*************************************************
John Naliboff
Assistant Project Scientist, CIG
Earth & Planetary Sciences Dept., UC Davis

On 07/06/2017 07:57 AM, Lev Karatun wrote:
> Hi Wolfgang,
>
> yes, I was actually trying to do it yesterday -- to compile with level 
> 2 optimization and on 1 core. It actually compiled successfully on 1 
> core for both level 2 and 3 optimizations.
> Thanks everyone for the help!
>
> Best regards,
> Lev Karatun.
>
> 2017-07-06 9:39 GMT-04:00 Wolfgang Bangerth <bangerth at tamu.edu 
> <mailto:bangerth at tamu.edu>>:
>
>     On 07/05/2017 10:45 AM, Lev Karatun wrote:
>
>         The cluster support says it's recommended to use intel
>         compilers because they provide significant speed-ups on their
>         machines, and all modules are installed using icc (including
>         trilinos and p4est).
>
>
>     From all of our experiments, the difference between icc and gcc is
>     actually quite small (at best a few percent). I wouldn't worry
>     about it.
>
>
>         If I want to install Aspect using gcc, does it mean I have to
>         reinstall deal.II, trilinos and p4est using gcc first?
>
>
>     Yes, probably. (It may be that you don't have to reinstall p4est
>     because it's just a C library, but it may be easiest to just do
>     that as well.)
>
>     But I don't see why you need to switch to gcc. I believe that the
>     compiler just ran out of memory. You may as well just try to
>     compile everything again with, say, 'make -j1' and see whether
>     that makes the compilation succeed.
>
>     Best
>      W.
>
>
>     -- 
>     ------------------------------------------------------------------------
>     Wolfgang Bangerth          email: bangerth at colostate.edu
>     <mailto:bangerth at colostate.edu>
>                                www:
>     http://www.math.colostate.edu/~bangerth/
>     <http://www.math.colostate.edu/%7Ebangerth/>
>
>
>
>
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