[gentoo-science] [Fwd: [atlas-devel] 3.9.2]

[gentoo-science] [Fwd: [atlas-devel] 3.9.2]

[M. Edward (Ed) Borasky]

[-- Attachment #1: Type: text/plain, Size: 166 bytes --]


-- 
M. Edward (Ed) Borasky
ruby-perspectives.blogspot.com

"A mathematician is a machine for turning coffee into theorems." --
Alfréd Rényi via Paul Erdős

[-- Attachment #2: Forwarded message - [atlas-devel] 3.9.2 --]
[-- Type: message/rfc822, Size: 5284 bytes --]

From: Clint Whaley <whaley@pandora2.cs.utsa.edu>
To: math-atlas-devel@lists.sourceforge.net
Subject: [atlas-devel] 3.9.2
Date: Sat, 09 Aug 2008 20:18:10 -0500
Message-ID: <200808100118.m7A1IAgs020500@pandora2.cs.utsa.edu>

Guys,

I have released 3.9.2.  If you are presently using 3.8 on a Core2-based
system of any sort, you may want to consider trying 3.9.2: I believe it
should be something like 15% faster for all types/precisions.  3.9.2 
also fixes several bugs in 3.9.1, including a nasty one that causes a
recursive Make dependence to hang the install (and consume all your
resources).  If you use QR, that has gotten another 15-20% faster on
top of the BLAS speedup, due to the LAPACK tuning . . .

It's just a developer release, but since I think Core2-based systems may
want to use it, I have run the full ATLAS tester on both 32 and 64-bit
Core2 installs, and it passed.

I will probably backport the new Core2 (and K10h) kernels back to 3.8
eventually, but it may take a while before I have the time (school is
about to start back up) . . .

The Changelog is below.

Cheers,
Clint

ATLAS 3.9.2 released 08/09/08, Changes from 3.9.1:
   * Improved Core2 performance, particularly for 32 bit and/or single precision
   * Changed Core2Duo arch name to Core2, since we use this description for
     the entire Core2 family (including Xeon, Core2Quad, etc).
   * Bug fixes:
     - Fixed cycle of dependencies in L1 Makefiles causing an endless stack
       of make processes (wt assoc hang) to spawn when tuning the L1 BLAS
     - Fixed compile probs for archs w/o cacheline flush in assembly
     - Fixed error in configure caused by change in CPUID usage
     - Added missing f77 wrappers for GERQF and GEQLF
     - Avoided CPP division in assembly on Solaris, due to binutils/solaris bug

**************************************************************************
** R. Clint Whaley, PhD ** Assist Prof, UTSA ** www.cs.utsa.edu/~whaley **
**************************************************************************

-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________
Math-atlas-devel mailing list
Math-atlas-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/math-atlas-devel