X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=rts%2Fgmp%2Fmpn%2Fcray%2FREADME;fp=rts%2Fgmp%2Fmpn%2Fcray%2FREADME;h=0000000000000000000000000000000000000000;hb=fdf1cd0399158308769fcb2ab7e46e215a68d865;hp=8195c67e210659e77ccff3a7e86ed39008cf66a3;hpb=e552cfc427d2734b9a9629f2ab1d22f493e775f6;p=ghc-hetmet.git diff --git a/rts/gmp/mpn/cray/README b/rts/gmp/mpn/cray/README deleted file mode 100644 index 8195c67..0000000 --- a/rts/gmp/mpn/cray/README +++ /dev/null @@ -1,14 +0,0 @@ -The (poorly optimized) code in this directory was originally written for a -j90 system, but finished on a c90. It should work on all Cray vector -computers. For the T3E and T3D systems, the `alpha' subdirectory at the -same level as the directory containing this file, is much better. - -* `+' seems to be faster than `|' when combining carries. - -* It is possible that the best multiply performance would be achived by - storing only 24 bits per element, and using lazy carry propagation. Before - calling i24mult, full carry propagation would be needed. - -* Supply tasking versions of the C loops. - -