I wonder if you might have run into whatever problem I had on
my Acer machine. It's documented in:
http://ask.sagemath.org/question/107/building-atlas
I never did find out what the problem was.
-Mike
I've not managed to build ATLAS on any single virtual machine on my Sun. That
has a 3.33 GHz Xeon and 12 GB RAM, so should not be troubled by CPU load. I've
tried allocating one CPU, and allocating more to the virtual machine, but still
no joy.
I think there's a way to increase the amount of time spent on the timing loops,
so that the overall result is less perturbed to short term changes in the system
load. But I could never quite work out how to pass the compiler option to the
ATLAS configure script.
There is probably some advantage in having some of the ATLAS parameters
configurable by Sage environment variables. In particular, spending longer on
the timing tests might help in cases where there is too much uncertainty on
results.
Dave
On 21 November 2010 17:17, RegB <2regb...@earthlink.net> wrote:
> In the Virtual box it SEEMS to be necessary to give the virtual
> machine
> more than 1 Gig of memory.
> Although I haven't found the limit 2,961 Meg has worked here.
> Virtual Box would not allow me to devote more than 75% of the physical
> machine's memory and I only have 4 Gig.
I've never managed to get ATLAS to build on any virtual machine I've
used on my Sun Ultra 27. I'll try allocating it more memory and giving
it a try. I'm not at home, and are unaware of how much I have
allocated, but the machine has 12 GB of RAM, so it should be
sufficient to build an updated version.
Dave
I had ATLAS fail to build from sage-3.6 running Ubuntu 10.04.1
on an HP Probook 4515s with and AMD CPU (yesterday).
Due to time pressure I installed a prebuilt binary instead.
Sorry, no more info.
regards,
Jan
--
.~.
/V\ Jan Groenewald
/( )\ www.aims.ac.za
^^-^^
If you did mean 3.6, then the ATLAS package would have changed a lot
since Sage 3.6.
Dave
I carried out some experiments, used the system reinstalation to excuse.
Configuration:
Ubuntu 10.10 with 2.6.35-23 kernel
2 GB of memory
AMD Athlon II X2 245
Processor clock frequency is on the "On demand" mode
$ cd /home/goodok/ta/sage-4.6
$ ./make
On about 0:43 minute I have the error while ATLAS was tuning
====
best cgemvT : ID=106, mu=1, nu=128 at 6748.29 MFLOPS
...
make[5]: *** [res/cMVRES]
...
ERROR 734 DURING MVTUNE!!. CHECK INSTALL_LOG/cMVTUNE.LOG FOR DETAILS.
====
Then, just in case, I went to the sage-4.6 directory so that the path
pointed to sage-4.6 do not contains any soft links.
(it was /home/goodok/ta --> /home/goodok/Tools-arsenal )
$ cd /home/goodok/Tools-arsenal/
$ rm -r sage-4.6
$ tar -xf sage-4.6.tar
$ cd sage-4.6
I run "./make" once more.
Installation ended with success.
./sage shell worked normally too.
Then I again remove "sage-4.6" dir and chage dir as at first case
$ cd /home/goodok/ta/
$ rm -r sage-4.6
$ tar -xf sage-4.6.tar
$ cd sage-4.6
$ ./make
Installation ended with success too.
So I decided it is independent of the file system links.
I suppose that the ATLAS tuning is unstable in random.
Or may be the screen saver GLMatrix has significance for this process.
16.12.2010 20:48, Jan Groenewald:
I will reinstall sage with this command
$ /usr/bin/cpufreq-selector -g performance
$ ./sage
$ /usr/bin/cpufreq-selector -g ondemand
21.12.2010 06:50, Dima Pasechnik пишет: