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Document new INIT argument extcomm

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Salvatore Filippone
2025-03-05 17:07:37 +01:00
parent 29c8a72e68
commit 00a893143f
20 changed files with 1987 additions and 1839 deletions
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docs/src/penv.tex
+9 -2
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@@ -7,7 +7,7 @@
environment}
\begin{verbatim}
call psb_init(ctxt, np, basectxt, ids)
call psb_init(ctxt, np, basectxt, ids, extcomm)
\end{verbatim}
This subroutine initializes the PSBLAS parallel environment, defining
@@ -21,7 +21,7 @@ Type: {\bf optional}.\\
Intent: {\bf in}.\\
Specified as: an integer value. \
Default: use all available processes.
\item[basectxt] the initial communication context. The new context
\item[basectxt] the initial PSBLAS communication context. The new context
will be defined from the processes participating in the initial one.\\
Scope: {\bf global}.\\
Type: {\bf optional}.\\
@@ -37,6 +37,13 @@ Type: {\bf optional}.\\
Intent: {\bf in}.\\
Specified as: an integer array. \
Default: use the indices $(0\dots np-1)$.
\item[extcomm] an alternative initial MPI communicator. The new context
will be defined from the processes participating in the initial one.\\
Scope: {\bf global}.\\
Type: {\bf optional}.\\
Intent: {\bf in}.\\
Specified as: an integer value. \
Default: use MPI\_COMM\_WORLD.
\end{description}
\begin{description}