Hi John.
On 06/15/2014 08:43 PM, John Reiser wrote:
>> These compilations have been particularly annoying because it was
>> nearly impossible to compile on my PC without blocks dependent by
>> *high* memory usage.
>
> How much RAM and swap and free space does the build machine have?
> ("sed 5q < /proc/meminfo; cat /proc/swaps; df -h")
$ sed 5q < /proc/meminfo; cat /proc/swaps; df -h
MemTotal: 4013076 kB
MemFree: 530220 kB
MemAvailable: 2846052 kB
Buffers: 169788 kB
Cached: 2235416 kB
Filename Type Size Used Priority
Filesystem Size Used Avail Use% Mounted on
/dev/sda6 96G 54G 38G 59% /
devtmpfs 2.0G 0 2.0G 0% /dev
tmpfs 2.0G 152K 2.0G 1% /dev/shm
tmpfs 2.0G 952K 2.0G 1% /run
tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup
tmpfs 2.0G 24K 2.0G 1% /tmp
/dev/sda5 477M 252M 196M 57% /boot
>
> The BuildRequires of coin-or-lemon-devel seems to be not yet available in f20,
> so "rpmbuild -bc seqan.spec" fails.
coin-or-lemon is still in f20 updates-testing repos; considering that my
PC haven't sufficient RAM, I had to base RPM building tests only on Copr
(http://copr-be.cloud.fedoraproject.org/results/sagitter/OpenMS/fedora-20-x86_64/seqan-1.4.1-2.fc20/build.log).
> Using the seqan-src-1.4.1.tar.gz
> that is named in https://bugzilla.redhat.com/show_bug.cgi?id=1105730
> and invoking by hand the 'cmake' command from seqan.spec, then a
> plain "make -k" using -O2 [but no "-j" parallelization], I compiled all-but-one
> of the source files. On razers3/razers.cpp, the complaint "OpenMP not found"
> caused failure. Perhaps OpenMP should be a requirement?
It's not explicitly required by upstream, but probably it's necessary.
>
> On my 3.4GHz box with 8GB RAM, compiling finished in less than 30 minutes.
> While compiling, I watched the display from /usr/bin/top. On pair_align.cpp
> the VIRT for c++ reached just under 3000000 (3M * 1KB ==> 3GB).
> Memory usage for other files seemed to be 500MB (VIRT 500000) or less.
> So you need 3GB of RAM for g++ on pair_align.cpp, which means
> 4GB RAM on the box. If you don't have 4GB of RAM then you must have
> swap space (paging space) to make up the difference; and compiling
> that file will take much longer (estimate: 10 to 20 times as long)
> because of the paging.
>
So my RAM is not adequate. Even if, maybe, not even koji seems to can
build pair_align.cpp keeping all RPM_OPT_FLAGS.
--
Antonio Trande
mailto: sagitterATfedoraproject.org
http://www.fedoraos.worpress.com
https://fedoraproject.org/wiki/User:Sagitter
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