Changes between Version 3 and Version 4 of Atlas
- Timestamp:
- Dec 28, 2011, 4:21:41 PM (7 years ago)
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Atlas
v3 v4 3 3 == Manually == 4 4 You need to write "performance" in the file /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor 5 5 6 This should be done for each core available (replace "cpu0" with "cpu1" "cpu2" etc... in the path) 6 7 … … 19 20 This should also be done for each core available with the --cpu parameter 20 21 22 = Dependencies = 23 24 ATLAS needs a fortran compiler 25 {{{ 26 sudo apt-get install libgfortran3 27 }}} 28 29 21 30 = Download = 22 31 The ATLAS source can be found at http://sourceforge.net/projects/math-atlas/files/ 32 23 33 Untar the file anywhere ( ~/ATLAS for instance ) 24 34 25 35 = Installation = 26 36 27 Create a build directory (~/ATLAS_build for instance) 37 Create a build directory (~/ATLAS_build for instance) and enter it (cd ~/ATLAS_build). 38 39 Launch "configure" from the atlas source directory 40 {{{ 41 ~/ATLAS/configure 42 }}} 43 44 Option "-t" speicifies the number of threads that will be used by the library after compilation. 45 46 "-t -1" for autodetect 47 48 "-t 0" for unthreaded 49 50 "-t x" for x threads 51 52 Then run 53 {{{ 54 make 55 make check 56 make ptcheck 57 make time 58 make install 59 }}} 60