On Mon, Jun 16, 2014 at 8:02 PM, Antonio Trande <anto.trande@xxxxxxxxx> wrote: > On 06/16/2014 12:12 AM, Kevin Kofler wrote: >> Antonio Trande wrote: >>> To pass these problems, I had to decrease '-O' optimization flag >>> gradually to '-O1' or '-O0', latest attempt is the removal of '-pipe' >>> from RPM_OPT_FLAGS. >>> >>> What's best choice in these cases? >> >> Definitely not -O0, that generates really crappy (slow and large) code. I'd >> also not recommend -O1. If you must change something, remove -pipe, that >> only makes builds slower (given sufficient RAM for the piping), but does not >> affect the quality of the generated code. > > On 06/16/2014 12:37 AM, Reindl Harald wrote: >> Am 16.06.2014 00:12, schrieb Kevin Kofler: >> >> i would add here >> %_smp_mflags -j1 >> >> if it comes to reduce memory due compile >> > > Thanks for your tips. > > On 06/16/2014 03:54 AM, John Reiser wrote:>> coin-or-lemon is still in > f20 updates-testing repos >> >> Please mention such facts early and prominently. It saves time >> for those who try to help you. > > Okay. > >> >>> So my RAM is not adequate. >> >> It *can* work, but your machine is not configured properly for large > compiles: >> ----- >>> $ cat /proc/swaps >>> Filename Type Size Used Priority >>> $ ### /proc/swaps is empty. There is no swap space. >> ----- > > Honestly, I already had a swap partition but I never verified if it was > available and used. > >> Get some swap space, either a disk partition, or a file of at least 6GB: >> dd if=/dev/zero of=my_swap_space bs=32k count=200k >> mkswap my_swap_space >> swapon my_swap_space >> > > Okay, I have made ready a swap partition mounted at boot time by > changing /etc/fstab; 10GB should be sufficient. This is the swap after a > first *complete* compilation of SeqAn (at last): > > $ cat /proc/swaps > Filename Type Size Used Priority > /dev/sda2 partition 10485756 188752 -1 > > My hardware needs more than 1 hour just for pair_align.cpp with "make > -j1" in .spec. In any case, now I can complete SeqAn building on my PC. > > Thank you very much. Given today's memory prices ... just buy an additional ram stick and be done with it ;) -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
