Hey, yo; I'm experimenting with building Sage on the Raspberry Pi. It apparently has an ARM6 processor, so I'm running from scratch. I ran into problems building libm4rie as well (and also on building conversion.c); it would start running and then after about 20 minutes the device would freeze up and my ssh session (since I'm running headless!) would seize up. Nothing I can find in the log files; seems like just a straight out crash. I'm trying again from the beginning in case something went wrong earlier in the build process.
ATLAS took 807 minutes to compile on the first attempt. I seem to recall hearing that ATLAS has some kind of processor database at some point? I poked around looking for whether there's a good way to store the timings, etc, and chop down the ATLAS compile time but wasn't immediately able to turn any answers up. Anyone have a good idea of where to look? cheers! -tom On Thursday, December 13, 2012 2:35:52 PM UTC+3, mmarco wrote: > > jaebond, did you try the image i linked? did it work for you? > > On 9 dic, 10:56, mmarco <mma...@unizar.es> wrote: > > I have made a zip archive with both the image and the scripts that i > > use. you can download it from: > > > > http://riemann.unizar.es/algebra/Archive1.zip > > > > It also includes a readme.txt file > > > > On 8 dic, 23:01, jaebond <jacob.ae.b...@gmail.com> wrote: > > > > > > > > > > > > > > > > > Thank you for that, that will help a lot. I would be interested in > the 7gb > > > file. How do you chroot into your images, do you use a script or an > app? > > > I have been using an app, but it doesn't seem to like images that > weren't > > > made by the app. > > > > > On Saturday, December 8, 2012 9:22:20 AM UTC-5, mmarco wrote: > > > > > > The problem was that the ubuntu image that i was using was armel > > > > architecture, but the sage distribution made by Julien was compiled > in > > > > an armhf environment (a slightly different architecture). So there > > > > were not compatible. > > > > > > My solution was to get an armhf rootfs from the ubuntu core site > > > > (http://cdimage.ubuntu.com/ubuntu-core/releases/12.04/release/), > and > > > > create a disk image with it to use. > > > > > > The procedure to do so would be the following (on a linux box, maybe > > > > you would need root privileges to mount the image): > > > > > > 1) create an empty file to build the image in. If you just wwant it > to > > > > use sage, 3GB should be fine. If you want to install a complete > ubuntu > > > > system, you will need more (i used 7GB): > > > > dd -if=/dev/zero of=ubuntu.img -bs=1G count=3 > > > > > > 2) format the file > > > > mkfs.ext2 ubuntu.img > > > > > > 3)create a directory and mount the image there > > > > mkdir mount > > > > mount -o loop ubuntu.img mount > > > > > > 4) put the ubuntu core tarball in the directory and unpack it > > > > cd mount > > > > wget > > > > > http://cdimage.ubuntu.com/ubuntu-core/releases/12.04/release/ubuntu-c... > > > > tar xzf ubuntu-core-12.04.1-core-armhf.tar.gz > > > > > > 5) Unpack the sage install inside the directory > > > > 6) Unmount the directory > > > > cd .. > > > > umount mount > > > > > > And that's it, the file ubuntu.img is ready to be used as a chroot > > > > environment with a very minimal ubuntu system (not even graphical > > > > interface, just the very basic system tools), where sage should work > > > > just fine. > > > > > > I do have a 7gb image with a lightweight desktop, vnc server, and > some > > > > applications installed (although for example qt apps don't render > > > > well, and firefox and chromium don't work either, so i have replaced > > > > them by some alternatives). > > > > > > I can try to upload it somewhere, if people is interested. > > > > > > On 7 dic, 23:46, jaebond <jacob.ae.b...@gmail.com> wrote: > > > > > mmarco, > > > > > > > I had been working on this exact same issue a few months ago. > Would you > > > > > mind explaining what you did to fix your issue? > > > > > > > On Friday, December 7, 2012 7:55:55 AM UTC-5, mmarco wrote: > > > > > > > > Nevermind, i found the problem: i had to use an armhf ubuntu. > > > > > > > > On 7 dic, 13:15, mmarco <mma...@unizar.es> wrote: > > > > > > > I have tried your package in a chroot environment (actually in > two, > > > > a > > > > > > > full ubuntu and a lubuntu), and it doesn't start in neither of > them. > > > > > > > > > Stranegly, the problem seems to be different: in the lubuntu > case, > > > > it > > > > > > > just shows the message with the version and quits. In the full > > > > ubuntu, > > > > > > > it complains with the message "can't import module sage", but > for > > > > > > > example, sage -python works fine > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. 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. Visit this group at http://groups.google.com/group/sage-devel?hl=en.
