Changes between Version 3 and Version 4 of Atlas


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Timestamp:
Dec 28, 2011, 4:21:41 PM (7 years ago)
Author:
joeffrey.legaux@…
Comment:

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  • Atlas

    v3 v4  
    33== Manually == 
    44You need to write "performance" in the file /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor 
     5 
    56This should be done for each core available (replace "cpu0" with "cpu1" "cpu2" etc... in the path) 
    67 
     
    1920This should also be done for each core available with the --cpu parameter 
    2021 
     22= Dependencies = 
     23 
     24ATLAS needs a fortran compiler 
     25{{{ 
     26sudo apt-get install libgfortran3 
     27}}} 
     28 
     29 
    2130= Download = 
    2231The ATLAS source can be found at http://sourceforge.net/projects/math-atlas/files/ 
     32 
    2333Untar the file anywhere ( ~/ATLAS for instance ) 
    2434 
    2535= Installation = 
    2636 
    27 Create a build directory (~/ATLAS_build for instance)  
     37Create a build directory (~/ATLAS_build for instance) and enter it (cd ~/ATLAS_build). 
     38 
     39Launch "configure" from the atlas source directory  
     40{{{ 
     41~/ATLAS/configure 
     42}}} 
     43 
     44Option "-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 
     52Then run 
     53{{{ 
     54make 
     55make check 
     56make ptcheck 
     57make time 
     58make install 
     59}}} 
     60