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Unrolled and/or SSE tuned versions of TensorMult_*

#9

Without unrolling over the last dimension, GCC seems limited at about 1150 MFLOPS, but this operation should be capable of much better. The first step is naive unrolling over the last dimension. That has a chance of putting us above 2 GFLOPS by skipping lots of conditionals and changing lots of mulsd to mulapd and such. If it doesn't then some SSE intrinsics should easily do the trick, but that may call for some custom tuning for each number of dofs and last dimension. Not a priority.

Reported by Jed Brown · November 28th, 2008 @ 01:40 AM

State: new
Milestone: none
Assigned to: Jed Brown Jed Brown

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