
\section{Interfaces} 


\parskip = 0pt

\vspace{3mm} \subsection*{General}

\noindent {\bf Implements}: 

grhaylhd
\vspace{2mm}

\noindent {\bf Inherits}: 

admbase

tmunubase

hydrobase

grhaylib
\vspace{2mm}
\subsection*{Grid Variables}
\vspace{5mm}\subsubsection{PRIVATE GROUPS}

\vspace{5mm}

\begin{tabular*}{150mm}{|c|c@{\extracolsep{\fill}}|rl|} \hline 
~ {\bf Group Names} ~ & ~ {\bf Variable Names} ~  &{\bf Details} ~ & ~\\ 
\hline 
grmhd\_velocities &  & compact & 0 \\ 
 & vx & description & Components of primitive three velocity v\^i. Note that v\^i is defined in terms of 4-velocity as: v\^i = u\^i/u\^0. Note that this definition differs from the Valencia formalism. \\ 
 & vy & dimensions & 3 \\ 
 & vz & distribution & DEFAULT \\ 
 &  & group type & GF \\ 
 &  & tags & InterpNumTimelevels=1 prolongation="none" \\ 
 &  & timelevels & 1 \\ 
 &  & variable type & REAL \\ 
\hline 
u0 & u0 & compact & 0 \\ 
 &  & description & 4-velocity component u\^0 \\ 
 &  & dimensions & 3 \\ 
 &  & distribution & DEFAULT \\ 
 &  & group type & GF \\ 
 &  & tags & InterpNumTimelevels=1 prolongation="none" checkpoint="no" \\ 
 &  & timelevels & 1 \\ 
 &  & variable type & REAL \\ 
\hline 
grmhd\_conservatives &  & compact & 0 \\ 
 & rho\_star & description & Evolved hydrodynamic variables \\ 
 & tau & dimensions & 3 \\ 
 & Stildex & distribution & DEFAULT \\ 
 & Stildey & group type & GF \\ 
 & Stildez & tags & prolongation="ENO" \\ 
 &  & timelevels & 3 \\ 
 &  & variable type & REAL \\ 
\hline 
ent\_star & ent\_star & compact & 0 \\ 
 &  & description & Evolved entropy variable \\ 
 &  & dimensions & 3 \\ 
 &  & distribution & DEFAULT \\ 
 &  & group type & GF \\ 
 &  & tags & prolongation="ENO" \\ 
 &  & timelevels & 3 \\ 
 &  & variable type & REAL \\ 
\hline 
ye\_star & Ye\_star & compact & 0 \\ 
 &  & description & Evolved electron fraction variable \\ 
 &  & dimensions & 3 \\ 
 &  & distribution & DEFAULT \\ 
 &  & group type & GF \\ 
 &  & tags & prolongation="ENO" \\ 
 &  & timelevels & 3 \\ 
 &  & variable type & REAL \\ 
\hline 
grmhd\_conservatives\_rhs &  & compact & 0 \\ 
 & rho\_star\_rhs & description & Right-hand side for grmhd\_conservatives variables \\ 
 & tau\_rhs & dimensions & 3 \\ 
 & Stildex\_rhs & distribution & DEFAULT \\ 
 & Stildey\_rhs & group type & GF \\ 
 & Stildez\_rhs & tags & prolongation="none" Checkpoint="no" \\ 
 &  & timelevels & 1 \\ 
 &  & variable type & REAL \\ 
\hline 
\end{tabular*} 



\vspace{5mm}
\vspace{5mm}

\begin{tabular*}{150mm}{|c|c@{\extracolsep{\fill}}|rl|} \hline 
~ {\bf Group Names} ~ & ~ {\bf Variable Names} ~  &{\bf Details} ~ & ~ \\ 
\hline 
ent\_star\_rhs & ent\_star\_rhs & compact & 0 \\ 
 &  & description & Right-hand side for ent\_star \\ 
 &  & dimensions & 3 \\ 
 &  & distribution & DEFAULT \\ 
 &  & group type & GF \\ 
 &  & tags & prolongation="none" Checkpoint="no" \\ 
 &  & timelevels & 1 \\ 
 &  & variable type & REAL \\ 
\hline 
ye\_star\_rhs & Ye\_star\_rhs & compact & 0 \\ 
 &  & description & Right-hand side for Ye\_star \\ 
 &  & dimensions & 3 \\ 
 &  & distribution & DEFAULT \\ 
 &  & group type & GF \\ 
 &  & tags & prolongation="none" Checkpoint="no" \\ 
 &  & timelevels & 1 \\ 
 &  & variable type & REAL \\ 
\hline 
grmhd\_flux\_temps &  & compact & 0 \\ 
 & rho\_star\_flux & description & Flux variables for computing RHSs \\ 
 & tau\_flux & dimensions & 3 \\ 
 & Stildex\_flux & distribution & DEFAULT \\ 
 & Stildey\_flux & group type & GF \\ 
 & Stildez\_flux & tags & prolongation="none" Checkpoint="no" \\ 
 &  & timelevels & 1 \\ 
 &  & variable type & REAL \\ 
\hline 
ent\_star\_flux & ent\_star\_flux & compact & 0 \\ 
 &  & description & Flux variable for ent\_star \\ 
 &  & dimensions & 3 \\ 
 &  & distribution & DEFAULT \\ 
 &  & group type & GF \\ 
 &  & tags & prolongation="none" Checkpoint="no" \\ 
 &  & timelevels & 1 \\ 
 &  & variable type & REAL \\ 
\hline 
ye\_star\_flux & Ye\_star\_flux & compact & 0 \\ 
 &  & description & Flux variable for Ye\_star \\ 
 &  & dimensions & 3 \\ 
 &  & distribution & DEFAULT \\ 
 &  & group type & GF \\ 
 &  & tags & prolongation="none" Checkpoint="no" \\ 
 &  & timelevels & 1 \\ 
 &  & variable type & REAL \\ 
\hline 
failure\_checker & failure\_checker & compact & 0 \\ 
 &  & description & Gridfunction to track conservative-to-primitives solver fixes. Beware that this gridfunction is overwritten at each RK substep. \\ 
 &  & dimensions & 3 \\ 
 &  & distribution & DEFAULT \\ 
 &  & group type & GF \\ 
 &  & tags & prolongation="none" Checkpoint="no" InterpNumTimelevels=1 \\ 
 &  & timelevels & 1 \\ 
 &  & variable type & REAL \\ 
\hline 
\end{tabular*} 



\vspace{5mm}

\noindent {\bf Uses header}: 

Symmetry.h

GRHayLib.h
\vspace{2mm}\parskip = 10pt 
