[Llvm-bgq-discuss] Problems with binaries compiled with anything else than -O0

[Hal Finkel]

----- Original Message -----
> From: "John A. Biddiscombe" <biddisco at cscs.ch>
> To: "Hal Finkel" <hfinkel at anl.gov>, "thom heller" <thom.heller at gmail.com>
> Cc: llvm-bgq-discuss at lists.alcf.anl.gov
> Sent: Tuesday, March 18, 2014 5:49:01 PM
> Subject: Re: [Llvm-bgq-discuss] Problems with binaries compiled with anything else than -O0
> 
> Hal
> 
> Would core files from my machine be any use?

Can you tell if this is a dynamic_cast failure?

> 
> A stack trace of the fail is here, but it only shows that during init
> of
> boost serialisation, things die.
> http://pastebin.com/0f1phPvu
> 
> Make me wonder if a simple boost serialise test wouldn't show the
> same
> fault … I’ll give that a try.

okay, thanks; let me know.

 -Hal

> 
> JB
> 
> 
> 
> 
> On 18/03/14 07:51, "Hal Finkel" <hfinkel at anl.gov> wrote:
> 
> >Thomas,
> >
> >Unfortunately, going from -O0 to -O1 causes a lot of internal
> >changes, it
> >is not as simple as added compile flags. Do you have some core files
> >I
> >could look at?
> >
> > -Hal
> >
> >----- Original Message -----
> >> From: "Thomas Heller" <thom.heller at gmail.com>
> >> To: llvm-bgq-discuss at lists.alcf.anl.gov
> >> Sent: Monday, March 17, 2014 4:32:29 PM
> >> Subject: [Llvm-bgq-discuss] Problems with binaries compiled with
> >>anything	else than -O0
> >> 
> >> Hi List,
> >> 
> >> We are currently trying to streamline our BGQ support for HPX. As
> >> it
> >> turns
> >> out, our builds segfault at right at the beginning in some static
> >> initialization segment of a dynamic library when compiling our
> >> code
> >> with -O3
> >> (in fact, anything else above -O0 leads to the same segfault).
> >> Everything
> >> works splendid when doing the same with -O0. Unfortunately, I was
> >> not
> >> able to
> >> extract a simple enough testcase to reproduce the problem yet. I
> >> was
> >> wondering
> >> if there is a list of compile flags added when going from -O0 to
> >> -O1
> >> which
> >> might be the culprit. I am running out of ideas here... I was
> >> thinking about
> >> LTO, but it is not explicitly enabled in our builds.
> >> 
> >> Hope someone can help,
> >> Thomas
> >> _______________________________________________
> >> llvm-bgq-discuss mailing list
> >> llvm-bgq-discuss at lists.alcf.anl.gov
> >> https://lists.alcf.anl.gov/mailman/listinfo/llvm-bgq-discuss
> >> 
> >
> >--
> >Hal Finkel
> >Assistant Computational Scientist
> >Leadership Computing Facility
> >Argonne National Laboratory
> >_______________________________________________
> >llvm-bgq-discuss mailing list
> >llvm-bgq-discuss at lists.alcf.anl.gov
> >https://lists.alcf.anl.gov/mailman/listinfo/llvm-bgq-discuss
> 
> 

-- 
Hal Finkel
Assistant Computational Scientist
Leadership Computing Facility
Argonne National Laboratory