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Annotation of OpenXM_contrib/gmp/mpn/cray/README, Revision 1.1.1.1

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: