On Sat, Jul 11, 2009 at 9:37 AM, Dr. David Kirkby<david.kir...@onetel.net> wrote: > > It's taken more than 12 hours to build ATLAS on t2, and it is still > going. William said it takes a lot less if some tuning parameters are > known for the machine, so it does not have to go through that again. I > asked on the ATLAS help forum, but so far no reply for how to save these > parameters. > > So a few question. > > 1) Does anyone know how to save the parameters for a machine, or just > force ATLAS to use a semi of semi-sensible defaults.
It's documented. You have to read the ATLAS documentation. Michael Abshoff regularly added new pretune parameters for the ATLAS spkg, but since he quit somebody else will have to figure out how to do it and do it. I think it would be worth always choosing some default -- I.e., never by default running the atlas tuning scripts (that take 12 hours). If there is no known default for the machine, find the closest, and print and huge warning message about this (possibly even on startup of Sage, with an easy way to disable it). > 2) Does anyone know how I can save the binaries and restore them another > time, rather than rebuild it. Sage releases are comping out quicker than > I can build it on Sage, due mainly to the very long time to compile > ATLAS. It takes nowhere near as long on my own SPARC, so I believe it's > probably since mine is a lot more common than 't2', so perhaps there is > data on my machine, but not t2. > > Any other suggestion - apart from buy a turbo charger? > > It would be good if some of the other packages could be built in > parallel. There is no reason one could not build the next package, > assuming that does not depend on ATLAS. There have been at least 1-2 recent threads on sage-devel (or support?) including a complete script posted by somebody about building multiple packages in parallel. You should search the archives (I don't have time now). William --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
