Kdtyjb

I have a LaTeX code which gives me these errors at a specific line :

• Incomplete iffalse; all text was ignored after line 140.


• 
  Forbidden control sequence found while scanning text of write. at line 140

and then in at the end of the document:

• Argument of @gobble has an extra }. end{document}


• Missing } inserted. end{document}


• etc.

The following code threw the error (line 140 being y[ row[i] ] += ... in section{COO Kernel}):

documentclass[11pt,oneside,czech,american]{book}

usepackage[T1]{fontenc}

usepackage[utf8]{inputenc}

usepackage[a4paper]{geometry}

geometry{verbose,tmargin=4cm,bmargin=3cm,lmargin=3cm,rmargin=2cm,headheight=0.8cm,headsep=1cm,footskip=0.5cm}

pagestyle{headings}

setcounter{secnumdepth}{3}

usepackage{url}

usepackage{listings}

usepackage{textcomp}

usepackage{amsmath}

usepackage{xcolor}



makeatletter



newenvironment{lyxlist}[1]

{begin{list}{}

{settowidth{labelwidth}{#1}

 setlength{leftmargin}{labelwidth}

 addtolength{leftmargin}{labelsep}

 renewcommand{makelabel}[1]{##1hfil}}}

{end{list}}

usepackage[varg]{txfonts}

usepackage{indentfirst}



clubpenalty=9500



widowpenalty=9500



hyphenation{CDFA HARDI HiPPIES IKEM InterTrack MEGIDDO MIMD MPFA DICOM ASCLEPIOS MedInria}



definecolor{light-gray}{gray}{0.95}

newcommand{code}[1]{colorbox{light-gray}{texttt{#1}}}



definecolor{listinggray}{gray}{0.9}

definecolor{lbcolor}{rgb}{0.9,0.9,0.9}

definecolor{Darkgreen}{rgb}{0.0, 0.2, 0.13}

lstset{

    backgroundcolor=color{lbcolor},

    tabsize=4,    

    language=[GNU]C++,

    basicstyle=scriptsize,

    upquote=true,

    aboveskip={0.001baselineskip},

    columns=fixed,

    showstringspaces=false,

    extendedchars=false,

    breaklines=true,

    prebreak = raisebox{0ex}[0ex][0ex]{ensuremath{hookleftarrow}},

    frame=single,

    numbers=left,

    showtabs=false,

    showspaces=false,

    showstringspaces=false,

    identifierstyle=ttfamily,

    keywordstyle=color[rgb]{0,0,1},

    commentstyle=color[rgb]{0.026,0.112,0.095},

    stringstyle=color[rgb]{0.627,0.126,0.941},

    numberstyle=color[rgb]{0.205, 0.142, 0.73},

}

lstset{

    backgroundcolor=color{lbcolor},

    tabsize=4,

    language=C++,

    captionpos=b,

    tabsize=3,

    frame=lines,

    numbers=left,

    numberstyle=tiny,

    numbersep=5pt,

    breaklines=true,

    showstringspaces=false,

    basicstyle=footnotesize,

    keywordstyle=color[rgb]{0,0,1},

    commentstyle=color{Darkgreen},

    stringstyle=color{red},

}

lstset{

    morekeywords={__global__},

    alsoletter={.},

    morekeywords={blockDim.x},

    morekeywords={blockIdx.x},

    morekeywords={threadIdx.x}

}



usepackage{babel}

begin{document}

tableofcontents{}



chapter*{Implementation/Kernels of formats}



addcontentsline{toc}{chapter}{Implementation/Kernels of formats}



setcounter{chapter}{3}

setcounter{section}{0}



section{DIAG Kernel}



begin{lstlisting}[caption= SpMV pseudocode using DIAG format for storing a matrix from textit{Efficient sparse matrix-vector multiplication on CUDA} cite{Bell-Garland}.]

__global__ void

spmv_dia_kernel ( const int num_rows,

                        const int num_cols,

                        const int num_diags,

                        const int   * offsets,

                        const float * data,

                        const float * x,

                                float * y )

{

    int row = blockDim.x * blockIdx.x + threadIdx.x;

    if ( row < num_rows ){

          float dot = 0;



          for ( int n = 0; n < num_diags; n++ ){

                  int col = row + offsets[ n ];

                  float val = data[ num_rows * n + row ];



                  if ( col >= 0 && col < num_cols )

                        dot += val * x[ col ];

          }



          y[ row ] += dot;

    }

}

end{lstlisting}

label{Code:Diagonal-matrix-example}



section{COO Kernel}



begin{lstlisting}[caption= SpMV pseudocode using COO format for storing a matrix cite{Parallel-Uppsala}.]

__global__ void

spmv_coo_kernel ( const int num_non_zero_elements,

                       const float * data,

                       const int   * row,

                       const int   * col,

                       const float * x,

                               float * y )

{

    int i = blockDim.x * blockIdx.x + threadIdx.x;

    if ( row < num_non_zero_elements )

          y[ row[i] ] += data[i] * x[ col[i] ];

}

end{lstlisting}



section{ELL Oriented Kernels}



subsection{ELL Kernel}



begin{lstlisting}[caption = SpMV pseudocode using ELL format for storing a matrix from textit{Efficient sparse matrix-vector multiplication on CUDA} cite{Bell-Garland}.]

__global__ void

spmv_ell_kernel ( const int num_rows,

                       const int num_cols,

                       const int num_cols_per_row,

                       const int   * indices,

                       const float * data,

                       const float * x,

                            float * y )

{

    int row = blockDim.x * blockIdx.x + threadIdx.x;



    if( row < num_rows ){

         float dot = 0;



         for ( int n = 0; n < num_cols_per_row; n++ ){

                int col = indices[ num_rows * n + row ];

                float val = data[ num_rows * n + row ];



                 if ( val != 0 )

                       dot += val * x[ col ];

         }



         y[ row ] += dot;

    }

}

end{lstlisting}



begin{thebibliography}{1}

bibitem{Bell-Garland}N Bell, M. Garland: emph{Efficient sparse matrix-vector multiplication on CUDA}. NVIDIA Technical Report NVR-2008-004, NVIDIA Corporation, 1-32, 2008.



bibitem{Parallel-Uppsala}D. Lukarski: emph{Sparse Matrix-Vector Multiplication and Matrix Formats}. Parallel Algorithms for Scientific Computing, Uppsala University, 2013. url{https://www.it.uu.se/education/phd_studies/phd_courses/pasc/lecture-1}

end{thebibliography}



end{document}

For some reason, citations to bibitems are undefined, even though there don't seem to be any spelling error.

To even compile the document correctly if I roll back the changes that led to the error, I have to delete the .aux and .toc files.

I'm pretty much dumb founded.

PS: The preamble was created by a professor as a template for all students to use, I was told not to meddle with it.

[EDIT]: Created minimal same-error outputting example as suggested.

[EDIT]: Added log file.

[EDIT]: Removed GitHub link, full project link and log file link, since they aren't necessary for the answer. I'll put them in a separate folder and won't remove it, if anyone wants to look at them. If for any reason the links will be broken, please let me know, and I'll renew them somehow, since I'll be keeping a backup of said files aswell.

The solution to this problem was to update my MiKTeX in user and admin mode, just like @UlrikeFischer said:

Update your tex system - most importantly the listings package. With the newest version it works again. (Check for updates in user and admin mode).

Apologies for stealing the answer, I just want to close this solved question and not spam further, by asking for a comment to be written as an answer.

If you would like for me to accept your answer, please, answer anytime, and I'll accept it back.