William McLean
williamchmclean
Involved Projects and Packages
Fortran compiler
For optimal performance you should rebuild the source rpm on your own system. You first need to disable cpu frequency scaling,
assuming your hardware supports this. Install the cpufrequtils package and do (for a dual core cpu)
sudo cpufreq-set -c 0 -g performance
sudo cpufreq-set -c 1 -g performance
After installing your binary rpm, test the atlas libraries by going to rpm/BUILD/atlas-g95-3.8.0/build and doing
make check
make ptcheck
make time
For more testing, unpack the file /usr/lib64/g95/packages/lapack-3.1.1/lapack_tests.tgz in a convenient location
then replace the lapack test script with the atlas one, as follows:
cd lapack_tests
rm dotests
cp /usr/lib64/g95/packages/atlas-3.8.0/dotests .
sh dotests
(On 32 bit systems, 'lib64' will be just 'lib'.) Alternatively, follow the instructions in
/usr/share/doc/packages/atlas/3.8.0/TestTime.txt
Before your CPU melts down, you should then do
cpufreq-set -c 0 -g ondemand
cpufreq-set -c 1 -g ondemand