Gentoo Archives: gentoo-user

From: Matthew Finkel <matthew.finkel@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Changing compilers
Date: Mon, 19 Mar 2012 05:34:09
Message-Id: CAGF8hstZUvCG5J2==um=ibv-Y_8j_Ea0c=p6npNr8qMNXAzX2Q@mail.gmail.com
In Reply to: [gentoo-user] Changing compilers by Andrew Lowe
1 On Mon, Mar 19, 2012 at 1:26 AM, Andrew Lowe <agl@×××××××.au> wrote:
2
3 > Hi all,
4 > Has anyone played around with the various "better known" compilers on
5 > Gentoo? By "better known", I'm referring to gcc, Intel, llvm, pathscale. My
6 > situation is that I've just started my PhD which requires me to do Finite
7 > Element Analysis, FEA, and Computational Fluid Dynamics, CFD, and I want to
8 > find the "best" compiler for the job. Before anyone says "Why bother, XXX
9 > compiler is only 1 - 2% faster than gcc", in the context of the work I'm
10 > doing this 1 - 2% IS important.
11 >
12 > What I'm looking for is any feedback people may have on ability to compile
13 > the Gentoo environment, the ability to change compilers easily, gcc-config
14 > or flags in make.conf, as to whether the compiler/linker can use the
15 > libraries as compiled by gcc on a "standard" gentoo install and so on.
16 > Obviously there is much web trawling to be done to find what other people
17 > are saying as well.
18 >
19 > Any thoughts, greatly appreciated,
20 > Andrew Lowe
21 >
22 >
23 With regard to speed, are you looking for a faster compile time or higher
24 optimization of the compiled code such that the run time is faster?
25
26
27 --
28 Matthew Finkel

Replies

Subject Author
Re: [gentoo-user] Changing compilers Andrew Lowe <agl@×××××××.au>