HI Sage-Devel, In case anybody is curious, I signed up for one of the free Amazon EC2 virtual machines, selected the "Amazon Linux AMI release 2011.09" operating system, and built Sage-4.7.2 from source. This virtual machine has one 2.6Ghz processor and 600MB RAM.
To build, I had to install these packages: yum install gcc emacs make screen gcc-c++ gcc-gfortran Also, I had to create a 1GB swap file, since without that the build crashed on Linbox: dd if=/dev/zero of=/swapfile1 bs=1024 count=1048576 && mkswap /swapfile1 && swapon /swapfile1 The build literally took *4 DAYS* to complete (!). However, everything built fine with no problems. I hope it took so long due to swap being slow, and not Amazon's EC2's being really slow, but I don't know. The EC2 virtual disks seem fast -- startup time is very good, for example and compute benchmarks like "factorial(10^7)" are basically the same on sage.math as EC2. I'm guessing the build would be a lot faster with a non-free EC2 virtual machine that has more RAM. I have not been able to get the notebook server to work at all yet though, perhaps due to some firewalling by Amazon that I haven't figured out how to disable yet. Anyway, it's good that Sage builds from source on "Amazon Linux AMI release 2011.09". -- William -- William Stein Professor of Mathematics University of Washington http://wstein.org -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
