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Annotation of OpenXM_contrib/gmp/mpn/cray/README, Revision 1.1

1.1     ! maekawa     1: The (poorly optimized) code in this directory was originally written for a
        !             2: j90 system, but finished on a c90.  It should work on all Cray vector
        !             3: computers.  For the T3E and T3D systems, the `alpha' subdirectory at the
        !             4: same level as the directory containing this file, is much better.
        !             5:
        !             6: * `+' seems to be faster than `|' when combining carries.
        !             7:
        !             8: * It is possible that the best multiply performance would be achived by
        !             9:   storing only 24 bits per element, and using lazy carry propagation.  Before
        !            10:   calling i24mult, full carry propagation would be needed.
        !            11:
        !            12: * Supply tasking versions of the C loops.
        !            13:
        !            14: