Bump minimum prereq PSBLAS to 3.9.0. Document.

configure

@@ -8070,8 +8070,8 @@ if test "x$pac_cv_psblas_patchlevel" == "xunknown"; then
    as_fn_error $? "PSBLAS patchlevel \"$pac_cv_psblas_patchlevel\"." "$LINENO" 5
 fi
 if (( $pac_cv_psblas_major < 3 )) ||
-   (  (( $pac_cv_psblas_major == 3 )) && (( $pac_cv_psblas_minor < 8 ))) ; then
+   (  (( $pac_cv_psblas_major == 3 )) && (( $pac_cv_psblas_minor < 9 ))) ; then
-  as_fn_error $? "I need at least PSBLAS version 3.8.0" "$LINENO" 5
+  as_fn_error $? "I need at least PSBLAS version 3.9.0" "$LINENO" 5
 else
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Am configuring with PSBLAS version $pac_cv_psblas_major.$pac_cv_psblas_minor.$pac_cv_psblas_patchlevel." >&5
 printf "%s\n" "$as_me: Am configuring with PSBLAS version $pac_cv_psblas_major.$pac_cv_psblas_minor.$pac_cv_psblas_patchlevel." >&6;}

configure.ac

@@ -587,8 +587,8 @@ if test "x$pac_cv_psblas_patchlevel" == "xunknown"; then
    AC_MSG_ERROR([PSBLAS patchlevel "$pac_cv_psblas_patchlevel".])
 fi
 if (( $pac_cv_psblas_major < 3 )) ||
-   (  (( $pac_cv_psblas_major == 3 )) && (( $pac_cv_psblas_minor < 8 ))) ; then
+   (  (( $pac_cv_psblas_major == 3 )) && (( $pac_cv_psblas_minor < 9 ))) ; then
-  AC_MSG_ERROR([I need at least PSBLAS version 3.8.0]) 
+  AC_MSG_ERROR([I need at least PSBLAS version 3.9.0]) 
 else
   AC_MSG_NOTICE([Am configuring with PSBLAS version $pac_cv_psblas_major.$pac_cv_psblas_minor.$pac_cv_psblas_patchlevel.])
 fi

docs/html/index.html

@@ -31,7 +31,7 @@ class="cmr-12">University of Rome Tor-Vergata and IAC-CNR</span><br
 class="newline" /> <span 
 class="cmr-12">Software version: 1.2</span><br 
 class="newline" /><span 
-class="cmr-12">June 9th, 2025</span>
+class="cmr-12">December 31st, 2025</span>
                                                                                
 
                                                                                

docs/html/userhtml.html

@@ -31,7 +31,7 @@ class="cmr-12">University of Rome Tor-Vergata and IAC-CNR</span><br
 class="newline" /> <span 
 class="cmr-12">Software version: 1.2</span><br 
 class="newline" /><span 
-class="cmr-12">June 9th, 2025</span>
+class="cmr-12">December 31st, 2025</span>
                                                                                
 
                                                                                

docs/html/userhtmlse3.html

@@ -189,7 +189,7 @@ href="https://psctoolkit.github.io/products/psblas/" ><span
 class="cmr-12">psctoolkit.github.io/ products/psblas/</span></a><span 
 class="cmr-12">; version</span>
      <span 
-class="cmr-12">3.7.0 (or later) is required. Indeed, all the prerequisites listed so far are also</span>
+class="cmr-12">3.9.0 (or later) is required. Indeed, all the prerequisites listed so far are also</span>
      <span 
 class="cmr-12">prerequisites of PSBLAS.</span></dd></dl>
 <!--l. 60--><p class="noindent" ><span 

docs/src/building.tex

@@ -53,7 +53,7 @@ in the make.inc file of the LAPACK library.
  \item[PSBLAS] \cite{PSBLASGUIDE,psblas_00} Parallel Sparse BLAS (PSBLAS) is
   available from
   \href{https://psctoolkit.github.io/products/psblas/}{psctoolkit.github.io/
-    products/psblas/}; version   3.7.0  (or later) is
+    products/psblas/}; version   3.9.0  (or later) is
   required. Indeed, all the prerequisites   listed so far are also
   prerequisites of PSBLAS. 
 \end{description}

docs/src/userguide.tex

@@ -154,7 +154,7 @@ Preconditioners Package based on PSBLAS}
 \flushright
 \large Software version: 1.2\\
 %\todaym
-\large June 9th, 2025
+\large December 31st, 2025
 \end{minipage}}
 %\addtolength{\textwidth}{\centeroffset}
 \vspace{\stretch{2}}

docs/src/userhtml.tex

@@ -114,7 +114,7 @@
 %\today
 Software version: 1.2\\
 %\today
-June 9th, 2025
+ December 31st, 2025
 \clearpage
 \ \\
 \thispagestyle{empty}