\begin{tabular}{|r|c|c|c|cc|c|cc|}
\hline
               &        &               & \multicolumn{3}{c|}{X10 C++ backend}
& \multicolumn{3}{c|}{X10 Java backend}          \\ \hline
               &        &               & Sequential &
\multicolumn{2}{c|}{Parallel}     & Sequential & \multicolumn{2}{c|}{Parallel}
\\ \hline
Benchmarks     & MATLAB & MATLAB parfor &   No checks & No checks & 
Checks &     No checks       & No checks & Checks \\ \hline
mbrt           & 1.0    & 1.7           & 6.5                            & 25.3                         & 25.3                      & 0.3                             & 1.3                           & 1.3                        \\
nb1d           & 1.0    & 0.4           & 6.2                            & 7.3                          & 7.3                       & 5.5                             & 19.0                          & 15.1                       \\
matmul         & 1.0    & 1.3           & 14.7                           &
68.7                        & 3.9                       & 1.1                             & 1.1                           & 0.8                        \\
mcpi           & 1.0    & 4.6           & 3.3                            & 15.7                         & 15.9                      & 2.9                             & 18.1                          & 18.2                       \\
numprime       & 1.0    & 5.3           & 7.6                            & 30.0                         & 30.9                      & 6.5                             & 24.8                          & 26.4                       \\
optstop        & 1.0    & 4.1           & 1.4                            & 2.0                          & 2.1                       & 1.8                             & 10.7                          & 9.7                        \\
quadrature     & 1.0    & 3.8           & 200.9                          & 11.3                         & 11.2                      & 167.4                           & 13.0                          & 13.0                       \\ \hline
Geometric mean & 1.0    & 2.3           & 8.9                            &
14.5                         & 9.8                       & 3.7                             & 7.8                           & 7.1                        \\ \hline
\end{tabular}
