 Experiments show that sDEM achieves an acceleration rate of up to 827.3 times for the best multi-GPU execution approach with respect to the best multi-core implementation .
<meaning-changed>  Experiments show that sDEM achieves an acceleration rate of up to 827.3 times for the best multi-GPU execution approach with respect to the best multi-core implementation .
 Experiments show that sDEM achieves an acceleration rate of up to 827.3 x faster than the state-of-the-art algorithm in the best case .