psedocode.tex

\usepackage[subsection]{algorithm}	% algorithm float, number according to subsection
\usepackage{algpseudocode}	% pseudo-code format



	\begin{algorithm}[htbp]
\caption{Parallel CUDA algorithm for connect component labelling \#1}
\label{alg:imageLabellingGPU1}
\algblockdefx[kernel]{Kernel}{EndKernel}[2][default value]{{\bf kernel} {\footnotesize \uppercase{#1}(#2)}}{\bf end kernel}
\begin{algorithmic}
%\State Global variable: isChanged=true;
\Function{gpu\_labelling\_1}{}
	\While{$isChanged=true$}
	\State run kernel ROW on rows
	\State run kernel COLUMN on columns
	\EndWhile
\EndFunction
\end{algorithmic}
\hrule
\begin{algorithmic}
\Kernel[row]{$\bf x$}	\Comment labells each pixel connected in a row with the smallest of their indices
	\For{$k=1$ to $n$}
		\For{$j=k$ to $n$}
			\State $tmp=\sum{i=1}{k}L_{i,j}\times L_{i,k}$
			\If{$j==k$}
				\State $L_{k,j}=\sqrt{A_{k,j}-tmp}$
			\Else
				\State $L_{k,j}=(A_{k,j}-tmp)/L_{k,k}$
			\EndIf
		\EndFor
	\EndFor	


\EndKernel
\end{algorithmic}
\end{algorithm}

pseudo code in latex