Package Details: atlas-lapack 3.10.3-1

Git Clone URL: (read-only)
Package Base: atlas-lapack
Description: Complete LAPACK and BLAS implementation using optimised ATLAS routines
Upstream URL:
Licenses: custom:blas, custom:lapack, custom:atlas
Conflicts: atlas-lapack-base, blas, cblas, lapack
Provides: atlas-lapack-base, blas, cblas, lapack=3.6.1
Submitter: ilpianista
Maintainer: giniu
Last Packager: giniu
Votes: 90
Popularity: 0.373997
First Submitted: 2008-04-24 01:36
Last Updated: 2016-07-30 16:48

Required by (228)

Sources (6)

Latest Comments

greyltc commented on 2018-03-03 22:35

Since this package provides and conflicts with cblas, I think it should at least install all the shared objects that the cblas packages does. /usr/lib/ and /usr/lib/ are missing here.

Notably, the missing /usr/lib/ breaks python's numpy module!

marcin commented on 2017-11-14 07:12

Cant compile due to CPU throttling enabled.

Followed instructions provided by @phcerdan on 2017-06-08 06:48 to disable it, and it worked. Could compile the package. Thanks @phcerdan

mullah commented on 2017-09-22 18:32

I also had to symlink to It seems that references instead of, the relevant error message being:
/usr/bin/ld: warning:, needed by /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/../../../../lib/, not found

hicarus commented on 2017-08-26 07:23

I have same issue as @EpsilonDelta

EpsilonDelta commented on 2017-08-12 05:52

There seems to be an issue where numpy is looking for but it cannot find it. numpy works after symlinking to but i'm not sure if that's a real fix. Is this package supposed to com with is different than

jerryjiahaha commented on 2017-06-21 18:12

After disabling intel_pstate and setting performance, my `scaling_cur_freq` is still always smaller than `cpuinfo_max_freq` and configure failed at checking cpu throttle.
Solution: `echo 1 > /sys/module/processor/parameters/ignore_ppc` Then set `/sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq` works for me.


p.s. I think my broadwell cpu (with model 0x3D) should be checked as IntCorei3 in CONFIG/src/backend/archinfo_x86.c (At present it will be checked as MACHOther)

phcerdan commented on 2017-06-08 06:48

Hey I just installed, and make these notes, that might be useful for somebody else:
Good explanation in atlas site:

Follow this, the governor set by cpupower knows shit about CPU without this:

Permanent disable intel_pstate:
Edit: /etc/default/grub
and update grub:
grub-mkconfig -o /boot/grub/grub.cfg

And then enable acpi-cpufreq module:
su root
echo "acpi-cpufreq" > /etc/modules-load.d/acpi-cpufreq.conf


Now cpupower can set frequencies properly.

To disable throtling
sudo pacman -S cpupower
sudo cpupower frequency-set -g performance
It should apply to all cores, but if it only apply to the first one: copy files to the other (4 in laptop)
sudo cp /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor

To restore:
sudo cpupower frequency-set -g ondemand
If not all cores are set:
sudo cp /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor

This stuff is only required at build time.

paulkerry commented on 2017-06-07 09:37

In case it helps anyone, to build this package I had to disable hyperthreading in BIOS to stop the "throttling error" and then set the cpu governor to performance (cpupower frequency-set -g governor).

tindzk commented on 2017-01-12 13:45

I encountered the same compilation problem and could fix it by adding the patch from

ArchangeGabriel commented on 2016-09-06 21:09

@mamstriz: atlas-lapack-base didn’t complain at all, because it wasn’t optimized for your specific setup.

That’s said, I don’t know why it was removed from the repo, but you still have the option to install blas, cblas and/or lapack instead for python2-numpy and the likes. ;)

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