[flext] flext and gcc 4.2.1 (was Re: Compiling latest SVN OSX 10.5.8)

[Stefano Papetti]

ok, I'll let you know as soon as we try it

ciao,
S


Il 17/12/2010 0.41, Thomas Grill ha scritto:
> Oh, and concerning 4.6 - no never tried that, but please go ahead and
> let us know what it does with the code.
> gr~~~
>
> 2010/12/16 Stefano Papetti<stefano.papetti at univr.it>:
>> ciao Thomas,
>>
>> any news about compiling flext with gcc 4.2.1? If I am correct, this is the
>> latest version provided by Apple Developer Tools.
>> We really need to exploit some parallel computing for a current project, and
>> therefore we cannot avoid using things such as SIMD.
>> If gcc 4.2.1 is not going to be supported, we will try using the unofficial
>> 4.6 found here: http://hpc.sourceforge.net/
>> I've been told that version 4.6 works well with MP, Eigen 3
>> (http://eigen.tuxfamily.org/) and optimizations such as "-O3
>> -ftree-vectorize".
>> BTW, do you have any experience with that and flext?
>>
>> Best,
>> S
>>
>> Il 17/05/10 19:57, Stefano Papetti ha scritto:
>>
>> hmmm, but we use 4.2.1 with the default -O2 flag and got that error when
>> compiling flsimd.cpp:
>>
>> flsimd.cpp: 1196: internal compiler error: Segmentation fault
>>
>> See my previous email for details. Any better ideas other than commenting
>> SIMD=1 in config.txt (as we already did)?
>>
>> Thanks,
>> S
>>
>> Il 15/05/10 11:54, Thomas Grill ha scritto:
>>
>> Am 14.05.2010 um 16:39 schrieb Stefano Papetti:
>>
>>
>>
>> so you would rather suggest to switch to gcc 4.0.1?
>>
>>
>>
>> Not really... it only seems that one has to avoid -Os with gcc-4.2 .
>> gr~~~
>>
>>
>>
>>
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