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How are int parameters handled in 64 bit?

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2004-07-19
2013-01-09
  • Brian Borchers

    Brian Borchers - 2004-07-19

    In 64 bit versions of ATLAS, how are the integer parameters to the BLAS and LAPACK routines handled?  Are long int's
    used instead of ints?  If not, is it possible to work with vectors of length greater than 4 gigabytes?  Is this consistent across different systems? 

     
    • mslama

      mslama - 2005-12-05

      Yes. Parameters are declared as 'intereger'. 'integer' is typedef for 'long int' which is 8 bytes long on 64bit system. You can verify by sizeof(long int).

       

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