The transpose "trick" should work the same way and have similar beneficial cache effects. Manually unrolling the sdot loop should probably help, too. Vectorized

The transpose "trick" should work the same way and have similar beneficial cache effects. Manually unrolling the sdot loop should probably help, too. Vectorized intrinsics are also available from .NET, so that should work as well: https://msdn.microsoft.com/en-us/library/hh977022.aspx https://msdn.microsoft.com/en-us/library/hh977022.aspx