Re: [AMBER-Developers] the -nosse option to configure

From: Daniel Roe <>
Date: Tue, 7 Feb 2017 14:04:59 -0500

The 'sse' part is a bit misleading I think - I believe it also affects
things like the AVX instruction set, which is only supported on sandy
bridge and above. There are still some environments where the older
chips (like nehalems, westmeres, etc) are still getting some use, like
here in LoBoS and at CHPC Utah (and others I'm sure).


On Tue, Feb 7, 2017 at 1:36 PM, David Case <> wrote:
> On Tue, Feb 07, 2017, Dan Roe wrote:
>> > 4. Does anyone use -nosse?
>> Yes, this has been discussed before on the dev list. It's useful for
>> environments with heterogeneous processors where some support sse
>> instructions and some don't.
> Do you know of current examples of such "environments" (clusters)? SSE
> was first added to the Pentium III chips in 1999. Wikipedia says that
> "many scientific applications refuse to run unless the CPU supports SSE2
> or SSE3." Does anybody really have a system that they want to run Amber on
> that has "no" support for SSE instructions?
> ....dac
> _______________________________________________
> AMBER-Developers mailing list

Daniel R. Roe
Laboratory of Computational Biology
National Institutes of Health, NHLBI
5635 Fishers Ln, Rm T900
Rockville MD, 20852
AMBER-Developers mailing list
Received on Tue Feb 07 2017 - 11:30:02 PST
Custom Search