computations (CPU and GPU) with communications (GPU transfers and internode
communications). However, we have previously shown that for some parallel
iterative algorithms, it is sometimes even more efficient to use an asynchronous
-scheme of iterations\index{iterations asynchronous} \cite{HPCS2002,ParCo05,Para10}. In that case, the nodes do
+scheme of iterations\index{asynchronous iterations} \cite{HPCS2002,ParCo05,Para10}. In that case, the nodes do
not wait for each other but they perform their iterations using the last
external data they have received from the other nodes, even if this
data was produced \emph{before} the previous iteration on the other nodes.
