Gentoo Archives: gentoo-user

From: "Hasan Ç." <hsntgm@×××××.com>
To: gentoo-user@l.g.o
Cc: gentoo-dev@l.g.o, gentoo-science@l.g.o, perfinion@g.o
Subject: Re: [gentoo-user] virtual eselect - how to
Date: Sat, 29 Jun 2019 01:20:24
Message-Id: CAJ2V=1oyxTbfZyppZBXNyOa0TDJyzUd6xLYH+QhFDfZta6gjFg@mail.gmail.com
In Reply to: [gentoo-user] virtual eselect - how to by Helmut Jarausch
1 Hi All,
2
3 I mentioned my active PR a few times on dev-lists that covers *openblas
4 ebuild (for main gentoo tree ~amd64)* + *integrated switch script between
5 openblas and gentoo reference set* {c,}blas, lapack and gsl (gnu scientific
6 library) *system-wide.* It seems i could not announce it enough.
7
8 Here is the complete openblas PR + system-wide switch script, if someone
9 interested in -->
10 https://github.com/gentoo/gentoo/pull/11700
11
12 *Here is the code who want to inspect switch script before use it -->*
13 https://github.com/gentoo/gentoo/blob/04b5fc9c117571ce040a94f63c6d09e0ce15c5f8/sci-libs/openblas/files/openblas
14
15 - I believe the proper way is eselect instead of this script but
16 openblas switch script is my quick fix until openblas fully integrated to
17 main tree and eselect.
18 - After switching to openblas system wide with script i tested it
19 with *numpy
20 & scipy, *both of them compiled with openblas support without any issue.
21 - *This is not officially merged PR and maybe it never will.Also switch
22 script not reviewed deeply by gentoo devs and may need improvement.This is
23 my own solution.Please consider this before use it.*
24
25 Screenshot's of the openblas switch script -->
26
27 *openblas --status*
28 [image: 56973125-e55d8300-6b74-11e9-99c7-142bfc4b2b11.png]
29
30 *openblas --openblas*
31 [image: 56973077-d1198600-6b74-11e9-97a0-315e789142cd.png]
32
33 *openblas --help*
34 [image: 56973043-c3640080-6b74-11e9-9415-90b3fa01ee9f.png]
35
36 Hasan Calisir | Proxy Maint
37
38 Helmut Jarausch <jarausch@××××××.be>, 26 Haz 2019 Çar, 16:05 tarihinde şunu
39 yazdı:
40
41 > Hi,
42 > what is the relationship of a virtual package and eselect.
43 > E.g.
44 > I have installed openblas but 'eselect blas list' doesn't know about
45 > this.
46 > I have even modified virtual/blas to include openblas.
47 >
48 > How does eselect get the list of alternatives?
49 >
50 > Many thanks for a hint,
51 > Helmut
52 >
53 >

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Re: [gentoo-user] virtual eselect - how to "Hasan Ç." <hsntgm@×××××.com>