On Thu, Apr 23, 2015 at 3:11 PM, Jed Brown <[email protected]> wrote:
> Matthew Knepley <[email protected]> writes: > >Your processor has > > 6 cores, each running at 3.4 GHz, and it can do 4flops/cycle using the > > vector instructions, > > Actually, it has AVX, so it can do 8 flops/cycle (1 packed multiply and > 1 packed add, each with 4-wide vector registers). > I don't like counting FMA since its a special, not a generic, floating point instruction, but I guess everyone does it. Matt > >so they > > report that it can do 81 GF/s, but you cannot get values to it fast > enough > > to compute. > > -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener
