Re: [scipion-users] Fwd: scipion-installer - how do i change compiler optimization flags?

[David <dst...@cn...>]

Hi,


other option is to set these directly in the xmipp.conf file (located in 
your xmipp install folder, typically 'xmipp-bundle'), and then recompile 
xmipp (typically 'scipion3 run path_to_xmipp_script_in_xmipp-bundle').

The problem is gonna be our default optimization flags (-mtune=native 
-march=native). It should be enough to remove them.


KR,

David S.


On 29/10/20 16:11, Carlos Oscar Sorzano wrote:
>
> Dear Wolfgang,
>
> in the compilation of Xmipp, you can set the environment variable 
> CXXFLAGS before calling the xmipp script. From the Scipion 
> installation I am not sure how to pass it to the xmipp script. It may 
> be that setting it in the shell before calling scipion suffices. But I 
> have never tried.
>
> Kind regards, Carlos Oscar
>
> El 29/10/2020 a las 11:13, Pablo Conesa escribió:
>>
>> ?
>>
>>
>>
>> -------- Forwarded Message --------
>> Subject: 	[scipion-users] scipion-installer - how do i change 
>> compiler optimization flags?
>> Date: 	Wed, 28 Oct 2020 14:19:29 +0100 (CET)
>> From: 	Lugmayr, Wolfgang <w.l...@uk...>
>> Reply-To: 	Mailing list for Scipion users 
>> <sci...@li...>
>> To: 	Mailing list for Scipion users 
>> <sci...@li...>
>>
>>
>>
>> hi,
>>
>> i installed and compiled scipion 3.0.5-devel on a system with intel cpus.
>>
>> when i run now scipion on new nodes with "AMD EPYC 7402" processors 
>> the executable fails with:
>> $ scipion3 last Scipion v3.0.5 () devel
>> sh: line 1: 45875 Illegal instruction python -m scipion last
>>
>> so i do not want to have 2 versions of scipion3 but maybe compile it 
>> with intel and amd compatibility flags.
>> how do i set these flags?
>>
>> cheers,
>> wolfgang
>>
>> -- 
>> Universitätsklinikum Hamburg-Eppendorf (UKE)
>> @ Centre for Structral Systems Biology (CSSB)
>> @ Deutsches Elektronen-Synchrotron (DESY)
>> Notkestrasse 85 Gebäude 15
>> 22607 Hamburg, Germany
>> Tel.: +49 40 8998-87652
>> Email:wol...@cs...
>> http://www.cssb-hamburg.de/
>>
>>
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