\begin{sidewaystable}
\begin{center}
  \caption{Execution time (seconds) of the benchmarks with the original and
  specialized reference kernels, and with the online auto\hyp{}tuned and the
  best statically auto\hyp{}tuned kernels, in the real platforms (all
  run\hyp{}time overheads included).}
  \label{tab:hwres-all-runtimes}
  \begin{tabular}{|l|l|l|c|c|c|c|c|c|c|c|} \hline
    \monocol{|c|}{\multirow{2}{*}{Benchmark}} & \monocol{c|}{\multirow{2}{*}{Input}} & \multirow{2}{*}{Version} & \multicolumn{4}{c|}{Cortex-A8} & \multicolumn{4}{c|}{Cortex-A9} \\ \cline{4-11}
                                  &                       &      & Ref. & Spec.\ Ref.&  O-AT  & BS-AT & Ref. & Spec.\ Ref.&  O-AT  & BS-AT  \\ \hline
    \multirow{6}{*}{Streamcluster}&\multirow{2}{*}{Small} & SISD & 9.75 & 10.2       & 9.26   & 9.06  & 3.26 & 4.00       & 2.66   & 2.47   \\ \cline{3-11}
                                  &                       & SIMD & 3.84 & 3.79       & 3.74   & 3.51  & 3.33 & 2.90       & 2.51   & 2.24   \\ \cline{2-11}
                                  &\multirow{2}{*}{Medium}& SISD & 19.9 & 21.8       & 17.9   & 17.8  & 7.54 & 11.1       & 5.87   & 5.68   \\ \cline{3-11}
                                  &                       & SIMD & 7.13 & 7.05       & 6.59   & 5.93  & 9.09 & 8.86       & 5.09   & 4.84   \\ \cline{2-11}
                                  &\multirow{2}{*}{Large} & SISD & 46.8 & 46.1       & 41.0   & 40.8  & 14.8 & 14.7       & 12.0   & 11.3   \\ \cline{3-11}
                                  &                       & SIMD & 15.1 & 15.0       & 11.1   & 10.2  & 17.2 & 15.1       & 10.1   & 9.84   \\ \hline
    \multirow{6}{*}{VIPS lintra}  &\multirow{2}{*}{Small} & SISD & 0.841& 0.842      & 0.676  & 0.640 & 0.502& 0.504      & 0.456  & 0.443  \\ \cline{3-11}
                                  &                       & SIMD & 0.556& 0.563      & 0.584  & 0.510 & 0.455& 0.454      & 0.471  & 0.442  \\ \cline{2-11}
                                  &\multirow{2}{*}{Medium}& SISD & 2.30 & 2.29       & 1.76   & 1.73  & 1.47 & 1.41       & 1.37   & 1.24   \\ \cline{3-11}
                                  &                       & SIMD & 1.47 & 1.48       & 1.40   & 1.36  & 1.31 & 1.41       & 1.31   & 1.26   \\ \cline{2-11}
                                  &\multirow{2}{*}{Large} & SISD & 26.6 & 24.3       & 25.1   & 22.9  & 10.1 & 9.63       & 9.88   & 9.49   \\ \cline{3-11}
                                  &                       & SIMD & 24.7 & 24.9       & 24.0   & 22.2  & 10.4 & 10.0       & 9.94   & 9.54   \\ \hline
  \end{tabular}
  \begin{tablenotes}
    \item [] Spec.\ ref.: Reference kernel specialized as in the auto\hyp{}tuned
    versions.
    \item [] O-AT: Online auto\hyp{}tuned kernel.
    \item [] BS-AT: Best statically auto\hyp{}tuned kernel.
  \end{tablenotes}
\end{center}
\end{sidewaystable}