On Thursday, 9 February 2012 22:02:29 UTC+8, firebird wrote: > > Thanks Jason/Volker > > Will persevere... Type of computer is I5-2320 Quadcore... Not on your > list of known processors. > Will try and find how to save tuning information after next test. > I am getting the message that compilation will take many hours. So I > will give it 12-24 hours. > I guess that I am compiling many of the packages to which there is a > SAGE interface as well. > > For me and others, how long is a typical compiliation
On your kind of hardware it should take less than an hour. The problem you see most probably comes from your processor not being well-supported by Atlas, http://math-atlas.sourceforge.net/ (or not being well-supported by the version of Atlas shipped with Sage) However, you can try setting SAGE_ATLAS_ARCH=Corei7,SSE3,SSE2,SSE1 as this looks pretty close to what you have. (see http://www.sagemath.org/doc/installation/source.html) Or even install Ubuntu Atlas package and use SAGE_ATLAS_LIB as described in http://www.sagemath.org/doc/installation/source.html The latter should be pretty quick! and how big > should the install.log file be? > Are there any sample install.logs that I could check out? > > Finally, is there a Ubuntu 11.10 version pending? > If not, I would be happy to go through a few extra loops and try to > publish mine! > > FireBird > > > On Feb 8, 6:27 pm, Jason Grout <[email protected]> wrote: > > On 2/8/12 10:39 AM, firebird wrote: > > > > > Thanks for the prompt response, but it is barely credible... > > > > Atlas will sometimes do tuning, which means that it will run the same > > program lots of times with different values in order to ascertain > > exactly what parameters to use to get the fastest linear algebra. > > Sometimes this tuning takes hours and hours, if atlas doesn't already > > know about your CPU and computer configuration. The important thing > > then is to save that tuning information for the next time you compile > > atlas, or even better, submit that tuning information back upstream to > > the atlas project. > > > > How long did you let it go before terminating? What kind of computer > > are you compiling on? > > > > Thanks, > > > > Jason -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
