Hello Loris,
unfortunately it's not so straightforward to easily override a few flags to
my knowledge (maybe somebody else knows?)
but you can try
toolchainopts = {'usempi': True, 'precise': True}
which sets -fp-model precise, which may be what you want anyway if you care
about denormals.
you can also use 'strict': True instead if you want even more FP safety.
Cheers,
Bart
On Tue, 19 Nov 2019 at 08:03, Loris Bennett <[email protected]>
wrote:
> Hi,
>
> I want to use the Intel compiler option '-no-ftz' and have set
>
> toolchainopts = {'usempi': True, 'optarch': 'm64 -xHost -prec-div
> -prec-sqrt -qopt-prefetch -no-ftz'}
>
> However, in the log I see
>
> CFLAGS set to -O2 -m64 -xHost -prec-div -prec-sqrt -qopt-prefetch
> -no-ftz -ftz -fp-speculation=safe -fp-model source
>
> Is this correct? Will the earlier option really win? My expectation
> would be that the later option would take precedence?
>
> Cheers,
>
> Loris
>
> --
> Dr. Loris Bennett (Mr.)
> ZEDAT, Freie Universität Berlin Email [email protected]
>
--
Dr. Bart E. Oldeman | [email protected] | [email protected]
Scientific Computing Analyst / Analyste en calcul scientifique
McGill HPC Centre / Centre de Calcul Haute Performance de McGill |
http://www.hpc.mcgill.ca
Calcul Québec | http://www.calculquebec.ca
Compute/Calcul Canada | http://www.computecanada.ca
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