> You probably don't have nearly enough RAM to support running several > Sage processes. Perhaps your use of ulimit to limit resource > consumption isn't setup very well. It's hard to give you any > information at all though, given that your email question doesn't > clearly summarize all the details about your current Sage notebook > install. There are infinitely many ways to configure a Sage notebook > server.
Just as a postscript, this (very new) problem we are having turns out to have nothing to do with memory etc, at least not directly. Instead, the following process in the virtual machine seems to be the problem: python /usr/local/sage/local/bin/twistd --pidfile=sage_notebook/ twistd.pid -ny sage_notebook/twistedconf.tac It consumes between 99% and 100% of all CPU on the VM whenever one attempts to evaluate, e.g., 2+2. For minutes on end, with no other users doing anything. Eventually, when people give up or the calculation ends or is interrupted, it goes back to a quiescent state. It starts up immediately upon starting the machine, which is done with the additional instruction su - notebook but everything else is the same as anywhere else. For instance each new worksheet or user or whatever is via bash -c ulimit -v 500000; sage -python -u On my own installation of 3.4 I have similar extremely slow issues in the notebook, e.g. checking whether a Legendre symbol is + or -1 takes around two minutes, with a huge amount due to this process. - kcrisman --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
