带指数的表格

Question 1

除了修复双指数问题之外，您还应该认真考虑如何让您的表格更清晰、更吸引读者的眼球，主要是让它看起来更“开放”。为了实现这一目标，请考虑删除所有垂直线和大多数垂直线，并使用包的宏来booktabs绘制剩余的几条线。此外，让您的标题行更具视觉结构——您的读者会喜欢的。

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{rotating,booktabs}
\usepackage[a4paper,margin=2.5cm]{geometry}
\frenchspacing

\begin{document}

\begin{sidewaystable}
\centering
\small
\begin{tabular}{@{} ll *{7}{c} @{}}
\toprule
\textbf{Benchmark} & \textbf{Parameter} & \multicolumn{7}{c@{}}{\textbf{Class}}\\
\cmidrule(l){3-9}
&&\textbf{S} & \textbf{W} & \textbf{A} & \textbf{B} & \textbf{C} & \textbf{D} & \textbf{E} \\ 
\midrule
CG & no. of rows & 1400 & 7000 & 14000 & 75000 & 150000 & 1500000 & 9000000 \\  
 & no. of nonzeros & 7 & 8 & 11 & 13 & 15 & 21 & 26 \\  
 & no. of iterations & 15 & 15 & 15 & 75 & 75 & 100 & 100 \\  
 & eigenvalue shift & 10 & 12 & 20 & 60 & 110 & 500 & 1500 \\ \addlinespace
EP & no. of random-number pairs &  $2^{2^4}$ & $2^{2^5}$ & $2^{2^8}$ & $2^{3^0}$ & $2^{3^2}$ & $2^{3^6}$ & $2^{4^0}$ \\ \addlinespace
FT & grid size & 
64$\times$64$\times$64 & 128$\times$128$\times$32 & 
256$\times$256$\times$128 & 512$\times$256$\times$256 & 
512$\times$512$\times$512 & 2048$\times$1024$\times$1024 & 
4096$\times$2048$\times$2048 \\  
 & no. of iterations & 6 & 6 & 6 & 20 & 20 & 25 & 25 \\ \addlinespace
IS & no. of keys & $2^{1^6}$ & $2^{2^0}$ & $2^{2^3}$ & $2^{2^5}$ & $2^{2^7}$ & $2^{3^1}$ &  \\  
 & key max. value & $2^{1^1}$ & $2^{1^6}$ & $2^{1^9}$ & $2^{2^1}$ & $2^{2^3}$ & $2^{2^7}$ &  \\ \addlinespace
MG & grid size & 
32$\times$32$\times$32 & 128$\times$128$\times$128 & 
256$\times$256$\times$256 & 256$\times$256$\times$256 & 
512$\times$512$\times$512 & 1024$\times$1024$\times$1024 & 
2048$\times$2048$\times$2048 \\  
 & no. of iterations & 4 & 4 & 4 & 20 & 20 & 50 & 50 \\ \addlinespace
BT & grid size & 
12$\times$12$\times$12 & 24$\times$24$\times$24 & 
64$\times$64$\times$64 & 102$\times$102$\times$102 & 
162$\times$162$\times$162 & 408$\times$408$\times$408 & 
1020$\times$1020$\times$1020 \\  
 & no. of iterations & 60 & 200 & 200 & 200 & 200 & 250 & 250 \\  
 & time step & 0.01 & 0.0008 & 0.0008 & 0.0003 & 0.0001 & 0.00002 & 0.000004 \\ \addlinespace
(BT-IO) & write interval & 5 & 5 & 5 & 5 & 5 & 5 & 5 \\  
 & Gbytes written & 0.0008 & 0.022 & 0.42 & 1.7 & 6.8 & 135.8 & 2122.4 \\ \addlinespace
LU & grid size & 
12$\times$12$\times$12 & 33$\times$33$\times$33 & 64$\times$64$\times$64 & 102$\times$102$\times$102 & 162$\times$162$\times$162 & 408$\times$408$\times$408 & 1020$\times$1020$\times$1020 \\  
 & no. of iterations & 50 & 300 & 250 & 250 & 250 & 300 & 300 \\  
 & time step & 0.5 & 0.0015 & 2.0 & 2.0 & 2.0 & 1.0 & 0.5 \\ \addlinespace
SP & grid size & 
12$\times$12$\times$12 & 36$\times$36$\times$36 & 64$\times$64$\times$64 & 102$\times$102$\times$102 & 162$\times$162$\times$162 & 408$\times$408$\times$408 & 1020$\times$1020$\times$1020 \\  
 & no. of iterations & 100 & 400 & 400 & 400 & 400 & 500 & 500 \\  
 & time step & 0.015 & 0.0015 & 0.0015 & 0.001 & 0.00067 & 0.0003 & 0.0001 \\ \addlinespace
UA & no. of elements & 250 & 700 & 2400 & 8800 & 33500 & 515000 &  \\  
 & no. of mortar points & 11600 & 26700 & 92700 & 334600 & 1262100 & 19500000 &  \\  
 & levels of refinements & 4 & 5 & 6 & 7 & 8 & 10 &  \\  
 & no. of iterations & 50 & 100 & 200 & 200 & 200 & 250 &  \\  
 & heat source radius & 0.04 & 0.06 & 0.076 & 0.076 & 0.067 & 0.046 &  \\ \addlinespace
DC & input tuples & $10^3$ & $10^5$ & $10^6$ & $10^7$ &  &  &  \\  
 & no. of dimensions & 5 & 10 & 15 & 20 &  &  &  \\ 
\bottomrule
\addlinespace
\multicolumn{7}{@{}l}{Source: Adapted from \cite{NPB}}\\
\end{tabular}
\caption{Problem sizes and parameters for each of the classes defined in NPB 3.3.}
\label{problem}
\end{sidewaystable}

\end{document}

Answer

除了修复双指数问题之外，您还应该认真考虑如何让您的表格更清晰、更吸引读者的眼球，主要是让它看起来更“开放”。为了实现这一目标，请考虑删除所有垂直线和大多数垂直线，并使用包的宏来booktabs绘制剩余的几条线。此外，让您的标题行更具视觉结构——您的读者会喜欢的。

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{rotating,booktabs}
\usepackage[a4paper,margin=2.5cm]{geometry}
\frenchspacing

\begin{document}

\begin{sidewaystable}
\centering
\small
\begin{tabular}{@{} ll *{7}{c} @{}}
\toprule
\textbf{Benchmark} & \textbf{Parameter} & \multicolumn{7}{c@{}}{\textbf{Class}}\\
\cmidrule(l){3-9}
&&\textbf{S} & \textbf{W} & \textbf{A} & \textbf{B} & \textbf{C} & \textbf{D} & \textbf{E} \\ 
\midrule
CG & no. of rows & 1400 & 7000 & 14000 & 75000 & 150000 & 1500000 & 9000000 \\  
 & no. of nonzeros & 7 & 8 & 11 & 13 & 15 & 21 & 26 \\  
 & no. of iterations & 15 & 15 & 15 & 75 & 75 & 100 & 100 \\  
 & eigenvalue shift & 10 & 12 & 20 & 60 & 110 & 500 & 1500 \\ \addlinespace
EP & no. of random-number pairs &  $2^{2^4}$ & $2^{2^5}$ & $2^{2^8}$ & $2^{3^0}$ & $2^{3^2}$ & $2^{3^6}$ & $2^{4^0}$ \\ \addlinespace
FT & grid size & 
64$\times$64$\times$64 & 128$\times$128$\times$32 & 
256$\times$256$\times$128 & 512$\times$256$\times$256 & 
512$\times$512$\times$512 & 2048$\times$1024$\times$1024 & 
4096$\times$2048$\times$2048 \\  
 & no. of iterations & 6 & 6 & 6 & 20 & 20 & 25 & 25 \\ \addlinespace
IS & no. of keys & $2^{1^6}$ & $2^{2^0}$ & $2^{2^3}$ & $2^{2^5}$ & $2^{2^7}$ & $2^{3^1}$ &  \\  
 & key max. value & $2^{1^1}$ & $2^{1^6}$ & $2^{1^9}$ & $2^{2^1}$ & $2^{2^3}$ & $2^{2^7}$ &  \\ \addlinespace
MG & grid size & 
32$\times$32$\times$32 & 128$\times$128$\times$128 & 
256$\times$256$\times$256 & 256$\times$256$\times$256 & 
512$\times$512$\times$512 & 1024$\times$1024$\times$1024 & 
2048$\times$2048$\times$2048 \\  
 & no. of iterations & 4 & 4 & 4 & 20 & 20 & 50 & 50 \\ \addlinespace
BT & grid size & 
12$\times$12$\times$12 & 24$\times$24$\times$24 & 
64$\times$64$\times$64 & 102$\times$102$\times$102 & 
162$\times$162$\times$162 & 408$\times$408$\times$408 & 
1020$\times$1020$\times$1020 \\  
 & no. of iterations & 60 & 200 & 200 & 200 & 200 & 250 & 250 \\  
 & time step & 0.01 & 0.0008 & 0.0008 & 0.0003 & 0.0001 & 0.00002 & 0.000004 \\ \addlinespace
(BT-IO) & write interval & 5 & 5 & 5 & 5 & 5 & 5 & 5 \\  
 & Gbytes written & 0.0008 & 0.022 & 0.42 & 1.7 & 6.8 & 135.8 & 2122.4 \\ \addlinespace
LU & grid size & 
12$\times$12$\times$12 & 33$\times$33$\times$33 & 64$\times$64$\times$64 & 102$\times$102$\times$102 & 162$\times$162$\times$162 & 408$\times$408$\times$408 & 1020$\times$1020$\times$1020 \\  
 & no. of iterations & 50 & 300 & 250 & 250 & 250 & 300 & 300 \\  
 & time step & 0.5 & 0.0015 & 2.0 & 2.0 & 2.0 & 1.0 & 0.5 \\ \addlinespace
SP & grid size & 
12$\times$12$\times$12 & 36$\times$36$\times$36 & 64$\times$64$\times$64 & 102$\times$102$\times$102 & 162$\times$162$\times$162 & 408$\times$408$\times$408 & 1020$\times$1020$\times$1020 \\  
 & no. of iterations & 100 & 400 & 400 & 400 & 400 & 500 & 500 \\  
 & time step & 0.015 & 0.0015 & 0.0015 & 0.001 & 0.00067 & 0.0003 & 0.0001 \\ \addlinespace
UA & no. of elements & 250 & 700 & 2400 & 8800 & 33500 & 515000 &  \\  
 & no. of mortar points & 11600 & 26700 & 92700 & 334600 & 1262100 & 19500000 &  \\  
 & levels of refinements & 4 & 5 & 6 & 7 & 8 & 10 &  \\  
 & no. of iterations & 50 & 100 & 200 & 200 & 200 & 250 &  \\  
 & heat source radius & 0.04 & 0.06 & 0.076 & 0.076 & 0.067 & 0.046 &  \\ \addlinespace
DC & input tuples & $10^3$ & $10^5$ & $10^6$ & $10^7$ &  &  &  \\  
 & no. of dimensions & 5 & 10 & 15 & 20 &  &  &  \\ 
\bottomrule
\addlinespace
\multicolumn{7}{@{}l}{Source: Adapted from \cite{NPB}}\\
\end{tabular}
\caption{Problem sizes and parameters for each of the classes defined in NPB 3.3.}
\label{problem}
\end{sidewaystable}

\end{document}

Question 2

这是一个可能的解决方案。您的双指数编码不正确：您不能这样写a^b^c （反正是一种含糊不清的符号），而必须使用一对括号：a^{b^c}。

    \documentclass{article}
    \usepackage{array, multirow, makecell, cellspace, caption}
    \setlength\cellspacetoplimit{3pt}
    \setlength\cellspacebottomlimit{1pt}
    \usepackage{lscape}

    \begin{document}

\begin{landscape}
\begin{table}%[!htb]
\footnotesize\renewcommand\cellset{\renewcommand\arraystretch{0.7}}
\begin{tabular}{|c|c|*{7}{>{$}Sc<{$}|}}
\\[-1cm]
\hline
\textbf{Benchmark} & \textbf{Parameter} & \textbf{Class S} & \textbf{Class W} & \textbf{Class A} & \textbf{Class B} & \textbf{Class C} & \textbf{Class D} & \textbf{Class E} \\ \hline
\multirow{4}{*}{CG} & no. of rows & 1400 & 7000 & 14000 & 75000 & 150000 & 1500000 & 9000000 \\ \cline{2-9}
 & no. of nonzeros & 7 & 8 & 11 & 13 & 15 & 21 & 26 \\ \cline{2-9}
 & no. of iterations & 15 & 15 & 15 & 75 & 75 & 100 & 100 \\ \cline{2-9}
 & eigenvalue shift & 10 & 12 & 20 & 60 & 110 & 500 & 1500 \\ \hline
EP & \makecell{no. of random-number \\ pair} & 2^{2^4} & 2^{2^5} & 2^{2^8} & 2^{3^0} & 2^{3^2} & 2^{3^6} & 2^{4^0} \\ \hline
\multirow{2}{*}{FT} & grid size & \makecell{64 \times 64 \\ \times 64} & \makecell{128 \times 128 \\ \times 32} & \makecell{256 \times 256 \\ \times 128} & \makecell{512 \times 256\\ \times 256} & \makecell{512 \times 512\\ \times 512} & \makecell{2048 \times 1024\\ \times 1024} & \makecell{4096 \times 2048\\ \times 2048} \\ \cline{2-9}
 & no. of iterations & 6 & 6 & 6 & 20 & 20 & 25 & 25 \\ \hline
\multirow{2}{*}{IS} & no. of keys & 2^{1^6} & 2^{2^0} & 2^{2^3} & 2^{2^5} & 2^{2^7} & 2^{3^1} & \\ \cline{2-9}
 & key max. value & 2^{1^1} & 2^{1^6} & 2^{1^9} & 2^{2^1} & 2^{2^3} & 2^{2^7} & \\ \hline
\multirow{2}{*}{MG} & grid size & \makecell{32 \times 32\\ \times 32} & \makecell{128 \times 128\\ \times 128} & \makecell{256 \times 256\\ \times 256} & \makecell{256 \times 256\\ \times 256} & \makecell{512 \times 512\\ \times 512} & \makecell{1024 \times 1024\\ \times 1024} & \makecell{2048 \times 2048\\ \times 2048} \\ \cline{2-9}
 & no. of iterations & 4 & 4 & 4 & 20 & 20 & 50 & 50 \\ \hline
\multirow{3}{*}{BT} & grid size & \makecell{12 \times 12\\ \times 12} & \makecell{24 \times 24\\ \times 24} & \makecell{64 \times 64\\ \times 64} & \makecell{102 \times 102\\ \times 102} & \makecell{162 \times 162\\ \times 162} & \makecell{408 \times 408\\ \times 408} & \makecell{1020 \times 1020\\ \times 1020} \\ \cline{2-9}
 & no. of iterations & 60 & 200 & 200 & 200 & 200 & 250 & 250 \\ \cline{2-9}
 & time step & 0.01 & 0.0008 & 0.0008 & 0.0003 & 0.0001 & 0.00002 & 0.000004 \\ \hline
\multirow{2}{*}{(BT-IO)} & write interval & 5 & 5 & 5 & 5 & 5 & 5 & 5 \\ \cline{2-9}
 & Gbytes written & 0.0008 & 0.022 & 0.42 & 1.7 & 6.8 & 135.8 & 2122.4 \\ \hline
\multirow{3}{*}{LU} & grid size & \makecell{12 \times 12\\ \times 12} & \makecell{33 \times 33\\ \times 33} & \makecell{64 \times 64\\ \times 64} & \makecell{102 \times 102\\ \times 102} & \makecell{162 \times 162\\ \times 162} & \makecell{408 \times 408\\ \times 408} & \makecell{1020 \times 1020\\ \times 1020} \\ \cline{2-9}
 & no. of iterations & 50 & 300 & 250 & 250 & 250 & 300 & 300 \\ \cline{2-9}
 & time step & 0.5 & 0.0015 & 2.0 & 2.0 & 2.0 & 1.0 & 0.5 \\ \hline
\multirow{3}{*}{SP} & grid size & \makecell{12 \times 12\\ \times 12} & \makecell{36 \times 36\\ \times 36} & \makecell{64 \times 64\\ \times 64} & \makecell{102 \times 102\\ \times 102} & \makecell{162 \times 162\\ \times 162} & \makecell{408 \times 408\\ \times 408} & \makecell{1020 \times 1020\\ \times 1020} \\ \cline{2-9}
 & no. of iterations & 100 & 400 & 400 & 400 & 400 & 500 & 500 \\ \cline{2-9}
 & time step & 0.015 & 0.0015 & 0.0015 & 0.001 & 0.00067 & 0.0003 & 0.0001 \\ \hline
\multirow{5}{*}{UA} & no. of elements & 250 & 700 & 2400 & 8800 & 33500 & 515000 & \\ \cline{2-9}
 & no. of mortar points & 11600 & 26700 & 92700 & 334600 & 1262100 & 19500000 & \\ \cline{2-9}
 & levels of refinements & 4 & 5 & 6 & 7 & 8 & 10 & \\ \cline{2-9}
 & no. of iterations & 50 & 100 & 200 & 200 & 200 & 250 & \\ \cline{2-9}
 & heat source radius & 0.04 & 0.06 & 0.076 & 0.076 & 0.067 & 0.046 & \\ \hline
\multirow{2}{*}{DC} & input tuples & 10^3 & 10^5 & 10^6 & 10^7 & & & \\ \cline{2-9}
 & no. of dimensions & 5 & 10 & 15 & 20 & & & \\ \hline
 \noalign{\medskip}
\multicolumn{9}{@{}l}{Source: Adapted from \cite{NPB}}
\end{tabular}
\caption{Problem sizes and parameters for each of the classes defined in NPB 3.3.}
\label{problem}
\end{table}
\end{landscape}

    \end{document}

Answer

这是一个可能的解决方案。您的双指数编码不正确：您不能这样写a^b^c （反正是一种含糊不清的符号），而必须使用一对括号：a^{b^c}。

    \documentclass{article}
    \usepackage{array, multirow, makecell, cellspace, caption}
    \setlength\cellspacetoplimit{3pt}
    \setlength\cellspacebottomlimit{1pt}
    \usepackage{lscape}

    \begin{document}

\begin{landscape}
\begin{table}%[!htb]
\footnotesize\renewcommand\cellset{\renewcommand\arraystretch{0.7}}
\begin{tabular}{|c|c|*{7}{>{$}Sc<{$}|}}
\\[-1cm]
\hline
\textbf{Benchmark} & \textbf{Parameter} & \textbf{Class S} & \textbf{Class W} & \textbf{Class A} & \textbf{Class B} & \textbf{Class C} & \textbf{Class D} & \textbf{Class E} \\ \hline
\multirow{4}{*}{CG} & no. of rows & 1400 & 7000 & 14000 & 75000 & 150000 & 1500000 & 9000000 \\ \cline{2-9}
 & no. of nonzeros & 7 & 8 & 11 & 13 & 15 & 21 & 26 \\ \cline{2-9}
 & no. of iterations & 15 & 15 & 15 & 75 & 75 & 100 & 100 \\ \cline{2-9}
 & eigenvalue shift & 10 & 12 & 20 & 60 & 110 & 500 & 1500 \\ \hline
EP & \makecell{no. of random-number \\ pair} & 2^{2^4} & 2^{2^5} & 2^{2^8} & 2^{3^0} & 2^{3^2} & 2^{3^6} & 2^{4^0} \\ \hline
\multirow{2}{*}{FT} & grid size & \makecell{64 \times 64 \\ \times 64} & \makecell{128 \times 128 \\ \times 32} & \makecell{256 \times 256 \\ \times 128} & \makecell{512 \times 256\\ \times 256} & \makecell{512 \times 512\\ \times 512} & \makecell{2048 \times 1024\\ \times 1024} & \makecell{4096 \times 2048\\ \times 2048} \\ \cline{2-9}
 & no. of iterations & 6 & 6 & 6 & 20 & 20 & 25 & 25 \\ \hline
\multirow{2}{*}{IS} & no. of keys & 2^{1^6} & 2^{2^0} & 2^{2^3} & 2^{2^5} & 2^{2^7} & 2^{3^1} & \\ \cline{2-9}
 & key max. value & 2^{1^1} & 2^{1^6} & 2^{1^9} & 2^{2^1} & 2^{2^3} & 2^{2^7} & \\ \hline
\multirow{2}{*}{MG} & grid size & \makecell{32 \times 32\\ \times 32} & \makecell{128 \times 128\\ \times 128} & \makecell{256 \times 256\\ \times 256} & \makecell{256 \times 256\\ \times 256} & \makecell{512 \times 512\\ \times 512} & \makecell{1024 \times 1024\\ \times 1024} & \makecell{2048 \times 2048\\ \times 2048} \\ \cline{2-9}
 & no. of iterations & 4 & 4 & 4 & 20 & 20 & 50 & 50 \\ \hline
\multirow{3}{*}{BT} & grid size & \makecell{12 \times 12\\ \times 12} & \makecell{24 \times 24\\ \times 24} & \makecell{64 \times 64\\ \times 64} & \makecell{102 \times 102\\ \times 102} & \makecell{162 \times 162\\ \times 162} & \makecell{408 \times 408\\ \times 408} & \makecell{1020 \times 1020\\ \times 1020} \\ \cline{2-9}
 & no. of iterations & 60 & 200 & 200 & 200 & 200 & 250 & 250 \\ \cline{2-9}
 & time step & 0.01 & 0.0008 & 0.0008 & 0.0003 & 0.0001 & 0.00002 & 0.000004 \\ \hline
\multirow{2}{*}{(BT-IO)} & write interval & 5 & 5 & 5 & 5 & 5 & 5 & 5 \\ \cline{2-9}
 & Gbytes written & 0.0008 & 0.022 & 0.42 & 1.7 & 6.8 & 135.8 & 2122.4 \\ \hline
\multirow{3}{*}{LU} & grid size & \makecell{12 \times 12\\ \times 12} & \makecell{33 \times 33\\ \times 33} & \makecell{64 \times 64\\ \times 64} & \makecell{102 \times 102\\ \times 102} & \makecell{162 \times 162\\ \times 162} & \makecell{408 \times 408\\ \times 408} & \makecell{1020 \times 1020\\ \times 1020} \\ \cline{2-9}
 & no. of iterations & 50 & 300 & 250 & 250 & 250 & 300 & 300 \\ \cline{2-9}
 & time step & 0.5 & 0.0015 & 2.0 & 2.0 & 2.0 & 1.0 & 0.5 \\ \hline
\multirow{3}{*}{SP} & grid size & \makecell{12 \times 12\\ \times 12} & \makecell{36 \times 36\\ \times 36} & \makecell{64 \times 64\\ \times 64} & \makecell{102 \times 102\\ \times 102} & \makecell{162 \times 162\\ \times 162} & \makecell{408 \times 408\\ \times 408} & \makecell{1020 \times 1020\\ \times 1020} \\ \cline{2-9}
 & no. of iterations & 100 & 400 & 400 & 400 & 400 & 500 & 500 \\ \cline{2-9}
 & time step & 0.015 & 0.0015 & 0.0015 & 0.001 & 0.00067 & 0.0003 & 0.0001 \\ \hline
\multirow{5}{*}{UA} & no. of elements & 250 & 700 & 2400 & 8800 & 33500 & 515000 & \\ \cline{2-9}
 & no. of mortar points & 11600 & 26700 & 92700 & 334600 & 1262100 & 19500000 & \\ \cline{2-9}
 & levels of refinements & 4 & 5 & 6 & 7 & 8 & 10 & \\ \cline{2-9}
 & no. of iterations & 50 & 100 & 200 & 200 & 200 & 250 & \\ \cline{2-9}
 & heat source radius & 0.04 & 0.06 & 0.076 & 0.076 & 0.067 & 0.046 & \\ \hline
\multirow{2}{*}{DC} & input tuples & 10^3 & 10^5 & 10^6 & 10^7 & & & \\ \cline{2-9}
 & no. of dimensions & 5 & 10 & 15 & 20 & & & \\ \hline
 \noalign{\medskip}
\multicolumn{9}{@{}l}{Source: Adapted from \cite{NPB}}
\end{tabular}
\caption{Problem sizes and parameters for each of the classes defined in NPB 3.3.}
\label{problem}
\end{table}
\end{landscape}

    \end{document}

Question 3

上面的评论解释了指数书写语法错误（正确的是 $a^{b^c}$）导致的错误。因此，这个答案的主要贡献与主题无关：如何改进表格布局。

编辑：为此，做出以下变更：

用于在横向页面方向上跨越可用文本宽度的表格使用包tabularx
用于格式化大数字和乘积的siunitx包。它们的选项是本地设置的，\sisetup{group-minimum-digits=4,tight-spacing}其中第一个选项是组号，即使它们只有四位数字，第二个选项是数字和数学运算符之间的空格。
为了在单元格内容周围留出更多垂直空间，添加了包cellspace。由于使用了包，因此必须将siunitx的celspace列说明S符更改为C，并与tabularx列类型一起使用，以保留序言中列类型X的功能。X\addparagraphcolumntypes{X}
为了给表格提供更多空间，文本区域的大小增加了，例如，使用包的默认值，边框缩小到 25 毫米geometry。
相反，我宁愿使用包中的landscape环境，因为我更熟悉它。sidewaystablerotating

经过这样的改变，产品现在可以写在一行中，表格变成：

完整代码为：

\documentclass{article}
\usepackage[margin=25mm]{geometry}% <-- added
\usepackage{rotating}
\usepackage{siunitx}% <-- added
\usepackage{multirow}% <-- added
\usepackage{cellspace, multirow, tabularx}% 
\addparagraphcolumntypes{X}% <-- needs since cellspace otherwise redefine X column type

\begin{document}
\begin{sidewaystable}[!h]
    \centering
\renewcommand\tabularxcolumn[1]{m{#1}}% X cells are vertical centered
\sisetup{group-minimum-digits=4,tight-spacing}% for formatting \num{...}
    \setlength\tabcolsep{3pt}
    \footnotesize
\setlength\cellspacetoplimit{4pt}% <-- added
\setlength\cellspacebottomlimit{4pt}% <-- added
\begin{tabularx}{\linewidth}{|c|>{\raggedright}C{X}|*{7}{>{$}c<{$}|}}
\hline
\textbf{Benchmark}
    & \textbf{Parameter}
        & \textbf{Class S}  & \textbf{Class W}  & \textbf{Class A}
            & \textbf{Class B}  & \textbf{Class C}  & \textbf{Class D}  & \textbf{Class E} \\
\hline
\multirow{4}{*}{CG}
    & no. of rows
        & \num{1400}        & \num{7000}        & \num{14000}
            & \num{75000}       & \num{150000}      & \num{1500000}     & \num{9000000}     \\
    \cline{2-9}
    & no. of nonzeros
        & 7     & 8     & 11    & 13    & 15    & 21    & 26    \\
\cline{2-9}
    & no. of iterations
        & 15    & 15    & 15    & 75    & 75    & 100   & 100   \\
    \cline{2-9}
    & eigenvalue shift
        & 10    & 12    & 20    & 60    & 110   & 500   & 1500  \\
        \hline
EP  & no. of random-number pairs
        &  2^{2^4}      & 2^{2^5}       & 2^{2^8}       & 2^{3^0}
            & 2^{3^2}       & 2^{3^6}       & 2^{4^0}           \\
            \hline
\multirow{2}{*}{FT}
    & grid size
        & \num{64  x  64 x 64}  & \num{128 x 128 x 32}  & \num{256 x 256 x 128}
            & \num{512 x 256 x 256} & \num{512 x 512 x 512} & \num{2048 x 1024 x 1024}
                & \num{4096 x 2048 x 2048}                      \\
    \cline{2-9}
    & no. of iterations
        & 6     & 6     & 6     & 20    & 20    & 25    & 25    \\
    \hline
\multirow{2}{*}{IS}
    & no. of keys
        & 2^{1^6}   & 2^{2^0}   & 2^{2^3}   & 2^{2^5}   & 2^{2^7}   & 2^{3^1}   &  \\
    \cline{2-9}
    & key max. value
        & 2^{1^1}   & 2^{1^6}   & 2^{1^9}   & 2^{2^1}   & 2^{2^3}   & 2^{2^7}   &  \\
    \hline
\multirow{2}{*}{MG}
        & grid size & \num{32 x 32 x 32}    & \num{128 x 128 x 128} & \num{256 x 256 x 256}
            & \num{256 x 256 x 256} & \num{512 x 512 x 512} &  \num{1024 x 1024 x 1024}
                & \num{2048 x 2048 x 2048}      \\
    \cline{2-9}
 & no. of iterations
    & 4     & 4     & 4     & 20    & 20    & 50    & 50    \\
    \hline
\multirow{3}{*}{BT}
    & grid size
        & \num{12 x 12 x 12}    & \num{24 x 24 x 24}    & \num{64 x  64 x 64}
            & \num{102 x 102 x 102} & \num{162 x 162 x 162} & \num{408 x 408 x 408}
                & \num{1020 x 1020  1020}       \\
    \cline{2-9}
    & no. of iterations
        & 60    & 200   & 200   & 200       & 200   & 250   & 250       \\
    \cline{2-9}
    & time step
        & 0.01                  & 0.0008                & 0.0008
            & 0.0003    & 0.0001    & 0.00002               & 0.000004 \\
    \hline
\multirow{2}{*}{(BT-IO)}
    & write interval
        & 5         & 5         & 5         & 5     & 5     & 5         & 5     \\
    \cline{2-9}
 & Gbytes written
    & 0.0008        & 0.022     & 0.42      & 1.7   & 6.8   & 135.8     & 2122.4 \\
    \hline
\multirow{3}{*}{LU}
    & grid size
        & \num{12 x 12 x 12}    & \num{33 x 33 x 33}    & \num{64 x  64 x 64}
            & \num{102 x 102 x 102} & \num{162 x 162 x 162} & \num{408 x 408 x 408}
                & \num{1020 x 1020 x 1020}  \\
    \cline{2-9}
    & no. of iterations
        & 50        & 300       & 250       & 250   & 250   & 300       & 300   \\
    \cline{2-9}
    & time step
        & 0.5       & 0.0015    & 2.0       & 2.0   & 2.0   & 1.0       & 0.5   \\
    \hline
\multirow{3}{*}{SP}
    & grid size
        & \num{12 x 12 x 12}    & \num{36 x 36 x 36}    & \num{64 x  64 x 64}
            & \num{102 x 102 x 102} & \num{162 x 162 x 162} & \num{408 x 408 x 408}
                & \num{1020 x 1020 x 1020}                                  \\
    \cline{2-9}
    & no. of iterations
        & 100       & 400       & 400       & 400   & 400   & 500       & 500   \\
    \cline{2-9}
    & time step
        & 0.015     & 0.0015    & 0.0015    & 0.001 & 0.00067
            & 0.0003    & 0.0001 \\
    \hline
\multirow{8}{*}{UA}
    & no. of elements
        & 250       & 700       & \num{2400}    & \num{8800}
            & \num{33500}   & \num{515000}      &       \\
    \cline{2-9}
    & no. of mortar points
        & \num{11600}   & \num{26700}       & \num{92700}   & \num{334600}
            & \num{1262100} & \num{19500000}    &       \\
    \cline{2-9}
 & levels of refinements
    & 4     & 5     & 6     & 7     & 8     & 10    &  \\
    \cline{2-9}
 & no. of iterations
    & 50    & 100   & 200   & 200   & 200   & 250   &  \\
    \cline{2-9}
 & heat source radius
    & 0.04  & 0.06  & 0.076 & 0.076 & 0.067 & 0.046 &  \\
    \hline
\multirow{2}{*}{DC}
    & input tuples
        & 10^3      & 10^5  & 10^6  & 10^7 &    &   &  \\
    \cline{2-9}
    & no. of dimensions
        & 5         & 10    & 15    & 20    &   &   &  \\
    \hline
\multicolumn{9}{Cl}{Source: Adapted from \cite{NPB}}
\end{tabularx}
\caption{Problem sizes and parameters for each of the classes defined in NPB 3.3.}
\label{problem}
\end{sidewaystable}
\end{document}

编辑（2）：如果您增加文本区域并选择边距为 25 毫米并移动\cpation*{...}到表格，那么您可以将使用的字体大小增加到 `\small，类似于 Mico 答案，即使在这种表格设计中。

Answer