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Re: gcj Linpack performance

To: Manfred Hollstein <manfred dot h at gmx dot net>
Subject: Re: gcj Linpack performance
From: Florian Schintke <schintke at zib dot de>
Date: Tue, 10 Jul 2001 15:53:44 +0200
Cc: Tim Prince <tprince at computer dot org>, gcc at gcc dot gnu dot org
References: <20010710123524.E12110@csr-pc2.zib.de> <009501c10942$d46588c0$9865fea9@timayum4srqln4> <20010710152308.P12110@csr-pc2.zib.de> <3B4B0773.70A18B49@gmx.net>
Reply-To: Florian Schintke <schintke at zib dot de>

[Manfred Hollstein]
> IIRC, -fno-bounds-check is having the biggest effect on performance.

Also this flag with some combination with others don't gave me
significantly better performance. The best was:

with -O3 -fno-bounds-check

Mflops/s: 24.719  Time: 1.74 secs  Norm Res: 4.7  
Precision: 2.220446049250313E-16

Best regards,

Florian Schintke
-- 
Florian Schintke <schintke@zib.de>, http://www.zib.de/schintke/

Follow-Ups:
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References:
- gcj Linpack performance
  - From: Florian Schintke
- Re: gcj Linpack performance
  - From: Tim Prince
- Re: gcj Linpack performance
  - From: Florian Schintke
- Re: gcj Linpack performance
  - From: Manfred Hollstein

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