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

[David M. <dma...@cn...>]

Hi,

Please check
https://github.com/I2PC/xmipp/wiki/Xmipp-configuration-(version-20.07)#c-configuration
for a more detailed information about how to set and edit compiling flags
in Xmipp.


Regards,

_____
Dr. David Maluenda Niubó
(+34) 619.029.310 - dma...@ub...
Wavefront Engineering Group
Applied Physics (UB)

El jue., 29 oct. 2020 16:21, David <dst...@cn...> escribió:

> 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...> <w.l...@uk...>
> Reply-To: Mailing list for Scipion users
> <sci...@li...>
> <sci...@li...>
> To: Mailing list for Scipion users <sci...@li...>
> <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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