Re: [sage-devel] Can't build Sage with 2GB RAM anymore
Just want to thank everybody involved in resolution! My reliable horse is now kicking again: novoselt@zvlm:~/sage$ time nice ionice -c3 make testlong ... -- All tests passed! -- Total time for all tests: 24923.4 seconds cpu time: 16676.2 seconds cumulative wall time: 24316.8 seconds real910m6.541s user739m5.011s sys36m41.738s With ~15 tab open in Firefox, the machine was perfectly responsive during build and didn't seem to use swap, until the documentation build, as usual. Thank you! Andrey -- You received this message because you are subscribed to the Google Groups sage-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-devel] Can't build Sage with 2GB RAM anymore
On Saturday, April 25, 2015 at 11:55:38 PM UTC-4, Andrey Novoseltsev wrote: With ~15 tab open in Firefox, the machine was perfectly responsive during build and didn't seem to use swap, until the documentation build, as usual. So while we are at it, here is cpu/mem usage for make doc with a single thread: https://lh3.googleusercontent.com/-m_h3hpLftiA/VTxq4N6Mi8I/Vd4/xhHwbCf0B6g/s1600/make_doc_serial.png You can clearly see the first pass (and the combinat docs at the beginning of it), then the second pass, and then the assorted small docs. I guess the importing of the inventory in the second pass uses a bit over a gigabyte. Thats pretty steep... And for fun, the parallel build (on my quad-core i7 laptop) where now the time for the first and second pass is set by the combinat docs: https://lh3.googleusercontent.com/-8cvpf2hyck8/VTxrnennyQI/VeA/nSCQlWTcDz8/s1600/make_doc_parallel.png -- You received this message because you are subscribed to the Google Groups sage-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-devel] Can't build Sage with 2GB RAM anymore
Upstream Cython has now fixed this and I made a new Cython package for Sage with this patch. Please review http://trac.sagemath.org/ticket/18294 -- You received this message because you are subscribed to the Google Groups sage-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-devel] Can't build Sage with 2GB RAM anymore
Sage ticket: http://trac.sagemath.org/ticket/18294 -- You received this message because you are subscribed to the Google Groups sage-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-devel] Can't build Sage with 2GB RAM anymore
I have a somewhat related problem: Since February (I do not recall the exact revision, but might very well be early in the 6.6 release cycle), I cannot do a parallel build with 4 processes on my notebook with 4 GB RAM anymore. My observation was that cythonizing takes huge amounts of memory (~ 2 GB) per process. Interrupting it and typing make again reduced the maximum memory usage. I then tried to somehow compare that with 6.5 and tried to limit my memory with ulimit; but also then, cythonizing took lots of memory. I then stopped investigating this and resigned myself to parallel builds with two processes. Regards, CH Am 2015-04-20 um 19:10 schrieb Thierry: Hi, i confirm i had the same issue on a Genuine Intel(R) CPU T2050 @ 1.60GHz with 1GB of RAM (+1.5GB swap), the build of 6.5 was sucessful, but get stuck for 6.6. Ciao, Thierry On Mon, Apr 20, 2015 at 09:33:24AM -0700, Andrey Novoseltsev wrote: Hello, Up to Sage-6.5 I was able to build it on my old laptop with 2GB RAM. It has swap as well, but I don't think it was used much, the wall time was just a bit bigger than user+system, about 8-9 hours. With Sage-6.6 it gets stuck while processing rings directory: swap is not full yet, but it seems that necessary stuff does not fit RAM anymore - heavy disk usage, low CPU temperature, not much progress after more than a day, top was showing python setup.py if I recall correctly consuming 1.5GB RAM and over 2.5GB virtual memory. This consistent over several attempts with make distclean, with nothing running apart from MATE session and a terminal window. I realize that supporting builds on such computers may not be a high priority, if at all, but perhaps it is a manifestation of some bug. Besides, while 2GB total RAM seems small nowadays, 2GB/core is quite common, especially with VMs. (In fact, all physical and virtual machines that I use frequently happen to have exactly this number, ranging from 2GB/1 core to 32GB/16 cores.) Thank you, Andrey -- You received this message because you are subscribed to the Google Groups sage-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout. -- Univ.-Prof. Dr. Clemens HeubergerAlpen-Adria-Universität Klagenfurt Institut für Mathematik, Universitätsstraße 65-67, 9020 Klagenfurt, Austria Tel: +43 463 2700 3121Fax: +43 463 2700 99 3121 clemens.heuber...@aau.athttp://wwwu.aau.at/cheuberg -- You received this message because you are subscribed to the Google Groups sage-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-devel] Can't build Sage with 2GB RAM anymore
Hi, i confirm i had the same issue on a Genuine Intel(R) CPU T2050 @ 1.60GHz with 1GB of RAM (+1.5GB swap), the build of 6.5 was sucessful, but get stuck for 6.6. Ciao, Thierry On Mon, Apr 20, 2015 at 09:33:24AM -0700, Andrey Novoseltsev wrote: Hello, Up to Sage-6.5 I was able to build it on my old laptop with 2GB RAM. It has swap as well, but I don't think it was used much, the wall time was just a bit bigger than user+system, about 8-9 hours. With Sage-6.6 it gets stuck while processing rings directory: swap is not full yet, but it seems that necessary stuff does not fit RAM anymore - heavy disk usage, low CPU temperature, not much progress after more than a day, top was showing python setup.py if I recall correctly consuming 1.5GB RAM and over 2.5GB virtual memory. This consistent over several attempts with make distclean, with nothing running apart from MATE session and a terminal window. I realize that supporting builds on such computers may not be a high priority, if at all, but perhaps it is a manifestation of some bug. Besides, while 2GB total RAM seems small nowadays, 2GB/core is quite common, especially with VMs. (In fact, all physical and virtual machines that I use frequently happen to have exactly this number, ranging from 2GB/1 core to 32GB/16 cores.) Thank you, Andrey -- You received this message because you are subscribed to the Google Groups sage-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups sage-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
[sage-devel] Can't build Sage with 2GB RAM anymore
Hello, Up to Sage-6.5 I was able to build it on my old laptop with 2GB RAM. It has swap as well, but I don't think it was used much, the wall time was just a bit bigger than user+system, about 8-9 hours. With Sage-6.6 it gets stuck while processing rings directory: swap is not full yet, but it seems that necessary stuff does not fit RAM anymore - heavy disk usage, low CPU temperature, not much progress after more than a day, top was showing python setup.py if I recall correctly consuming 1.5GB RAM and over 2.5GB virtual memory. This consistent over several attempts with make distclean, with nothing running apart from MATE session and a terminal window. I realize that supporting builds on such computers may not be a high priority, if at all, but perhaps it is a manifestation of some bug. Besides, while 2GB total RAM seems small nowadays, 2GB/core is quite common, especially with VMs. (In fact, all physical and virtual machines that I use frequently happen to have exactly this number, ranging from 2GB/1 core to 32GB/16 cores.) Thank you, Andrey -- You received this message because you are subscribed to the Google Groups sage-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
