On 64 bit computations
From: Diego Luego (dluego_at_yahoo.es)
Date: 11/10/04
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Date: 9 Nov 2004 22:47:13 -0800
Hello all,
We rencently installed a 64 bit machine based on AMD opteron, and
I would like to run on it some test qequiring 64 bit computations.
I was trying to implement a few codes involving operations with r*16
declared variables, but the portland pgf90 compiler does not recognize that
data type and performs the computations as if the variables were real.
So the results are given in single precision.
I would appreciate your pointers to obtain source code (either fortran 77/90
or C/C++) that requires 64-bits to get the right answer, so I could test
this computer.
Thanks in advance,
Diego
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