adding important compiler flag for Cray machines

d0_supercomputers.tex

@@ -239,6 +239,16 @@ export I_MPI_FABRICS="tmi"
 
 
 
+\section{Hazelhen (Cray)} 
+
+Cray may configure the intel compiler to link in all libraries statically
+but TBB by default is not built statically so add the following to the
+\texttt{TBB\_SHLIB}
+\begin{code}
+-dynamic -ltbb
+\end{code} 
+i.e. before the link command.
+