Re: Proposal for a blog contribution on reproducible computations

[zimoun]

Hi Ludo,

On Fri, 10 Jan 2020 at 17:59, Ludovic Courtès <address@hidden> wrote:

>   • In the ‘guix pack’ example, you could perhaps omit all the -S flags
>     except for /bin, and mention ‘--save-provenance’.

I am the culprit.

The invocation of "guix pack -f docker" is not clear to me. So
basically, I copied/pasted the lines here [1] :-) because it works all
the time.

[1] http://bioinformatics.mdc-berlin.de/pigx/supplementary-materials.html


That said, I also find interesting the command-line and hashes comparisons:

--8<---------------cut here---------------start------------->8---
/usr/bin/gcc pi.c -o pi-debian-gcc8
docker run -v `pwd`:`pwd` -w `pwd` -ti gcc-toolchain gcc pi.c -o pi-docker
guix environment --container --ad-hoc gcc-toolchain -- gcc pi.c -o pi-guix

md5sum pi-*

b268af34d62763a2a707944403bf7b0b  pi-debian-gcc8
1be3c1b5d1e065017e4c56f725b1a692  pi-docker
1be3c1b5d1e065017e4c56f725b1a692  pi-guix
--8<---------------cut here---------------end--------------->8---

Anyway! :-)


>   • Would it make sense to mention MPFR in the paragraph about IEEE 754?

And MPFI? ;-)


All the best,
simon