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Re: fftwf tests running for 25+ hours - is this normal?

From: Chris Marusich
Subject: Re: fftwf tests running for 25+ hours - is this normal?
Date: Wed, 16 Oct 2019 21:06:47 -0700
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux)

Hi Bengt, Matteo, and others,

I've stopped the build.  The process ran for 73 hours and didn't
complete.  I've also noticed that there are no recent builds in Cuirass,
so I wonder: has anyone built fftwf successfully recently?  I was trying
to build fftwf based off of what is currently in the core-updates

The latest successful build for fftwf 3.3.8 on x86_64-linux was on
September 1st (of this year, I think):

It supposedly took 13145 seconds to complete.  However, I'm not sure how
accurate that is, since this other entry for a build on armhf-linux says
it took 1570098173 seconds (is probably some kind of Cuirass bug, since
that puts the supposed start time around the epoch):

For now, I'm going to try building an older version of Guix or fftwf and
see how that goes.

Bengt Richter <address@hidden> writes:

> lscpu|grep -i '^CPU m'
> [...]
> grep '^cpu MHz' /proc/cpuinfo

Thanks for this tip!  I can see the CPU speed was reduced to 800 MHz at
one point, but it seems it's back to 2400 MHz now:

--8<---------------cut here---------------start------------->8---
$ lscpu  | grep -i '^cpu m'
CPU MHz:             2400.035
CPU max MHz:         2400.0000
CPU min MHz:         800.0000
--8<---------------cut here---------------end--------------->8---

Same info from /proc/cpuinfo:

--8<---------------cut here---------------start------------->8---
$ cat /proc/cpuinfo | grep '^cpu MHz'
cpu MHz         : 2400.035
cpu MHz         : 2400.035
--8<---------------cut here---------------end--------------->8---


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