[gmx-users] disabling assembly loops

[David van der Spoel]

Senthil Kandasamy wrote:
> Hi,
> 
> I am trying to compile gromacs on a mac with the new intel dual core  
> processors.
> I am running into trouble with the assembly loops during ./configure
> 
> ......
> checking whether your compiler can handle assembly files (*.s)... yes
> checking whether as understands 'lock cmpxchg'... no
> configure: error: Upgrade to binutils >= 2.12.1 (or disable assembly  
> loops).
> 
> 
> as -v reveals
> 
> [15] [11:16am] [senthilk] ~/local/gromacs-3.3 ---> as -v
> Apple Computer, Inc. version cctools-590.23.2.obj~17, GNU assembler  
> version 1.38
> 
> I do not really care for assembly loops since I do not plan to use  this 
> machine for production. Just for simulation setup (grompp etc)  and some 
> analysis.
> 
> I am not sure which flag I am supposed to use for disabling assembly  
> loops. I tried a few options like --disable-asm ,  --disable-sse , -- 
> disable-x86-sse , etc. but none of them seems to work.
> 
> Can anybody suggest how to get this thing compiled please ?
In general
./configure --help
will tell you, but your machine is too new

There is support for it in CVS, you'll have to use:
cvs co -r release-3-3-patches gmx
and see instructions on the website
> 
> Thanks in advance
> 
> Senthil Kandasamy
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-- 
David.
________________________________________________________________________
David van der Spoel, PhD, Assoc. Prof., Molecular Biophysics group,
Dept. of Cell and Molecular Biology, Uppsala University.
Husargatan 3, Box 596,  	75124 Uppsala, Sweden
phone:	46 18 471 4205		fax: 46 18 511 755
spoel at xray.bmc.uu.se	spoel at gromacs.org   http://folding.bmc.uu.se
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