[Coin-discuss] query re. optimised builds for COIN

[Laszlo Ladanyi]

I'm regularly building optimized code on Sun/AIX/Linux using gcc-2.95.3 and
see no problem whatsoever...

I'm planning to try gcc-3.0.x RSN :-)

--Laci

On Fri, 12 Apr 2002, Lou Hafer wrote:

> Folks,
> 
> 	As the last step in testing OsiDylp, I've been trying to do optimised
> builds in various programming environments. I'm finding it very frustrating
> and am wondering about the experiences of others. In all cases the debug
> build runs correctly and has no runtime memory errors I'm aware of. Here's
> what I've seen with optimised builds:
> 
>   * Sun Workshop 6 Update 1 on SPARC/Solaris 8 required rearrangment of code
>     in OsiIndexedVector and OsiIndexedVectorTest in order to execute
>     correctly. (The highlight was having CC claim that 1.0/1.0 == 24!)
> 
>   * GCC 2.95.2 on SPARC/Solaris 8 was happy with the same code as Sun
>     Workshop.
> 
>   * GCC 2.96 on Intel/RedHat 7.1 dumps core in OsiPackedMatrix::getVector
>     (gdb reports line 135 in OsiPackedMatrix.hpp). I haven't yet put serious
>     time into debugging the problem.
> 
> I'm looking for answers to two specific questions:
> 
>   * I'd like to hear from people who have been able to make the optimised
>     build with no problems. What was your programming environment? I'm
>     assuming there are a fair number of you out there who have done this
>     without problem.
> 
>   * Does anyone have experience with GCC 3.0.x? I've given thought to
>     upgrading but have been discouraged by comments at the gcc web page (GCC
>     3.0 caveats) about problems interacting with gdb. The caveats are dated
>     June 2001, but I haven't seen anything that states the problems are
>     fixed.
> 
> 
> 					Thanks,
> 						Lou
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