RcppArmadillo 0.12.6.6.0 with Armadillo 12.6.6

ChangeLog

@@ -1,3 +1,12 @@
+2023-10-31  Dirk Eddelbuettel  <[email protected]>
+
+	* DESCRIPTION (Version, Date): RcppArmadillo 0.12.6.6.0
+        * inst/NEWS.Rd: Idem
+        * configure.ac: Idem
+        * configure: Idem
+
+ 	* inst/include/armadillo_bits/: Armadillo 12.6.6
+
 2023-10-29  Dirk Eddelbuettel  <[email protected]>
 
 	* src/RcppArmadillo.cpp (armadillo_get_number_of_omp_threads)

DESCRIPTION

@@ -1,8 +1,8 @@
 Package: RcppArmadillo
 Type: Package
 Title: 'Rcpp' Integration for the 'Armadillo' Templated Linear Algebra Library
-Version: 0.12.6.5.0
-Date: 2023-10-14
+Version: 0.12.6.6.0
+Date: 2023-10-31
 Author: Dirk Eddelbuettel, Romain Francois, Doug Bates, Binxiang Ni, and Conrad Sanderson
 Maintainer: Dirk Eddelbuettel <[email protected]>
 Description: 'Armadillo' is a templated C++ linear algebra library (by Conrad

configure

@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.71 for RcppArmadillo 0.12.6.5.0.
+# Generated by GNU Autoconf 2.71 for RcppArmadillo 0.12.6.6.0.
 #
 # Report bugs to <[email protected]>.
 #
@@ -610,8 +610,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='RcppArmadillo'
 PACKAGE_TARNAME='rcpparmadillo'
-PACKAGE_VERSION='0.12.6.5.0'
-PACKAGE_STRING='RcppArmadillo 0.12.6.5.0'
+PACKAGE_VERSION='0.12.6.6.0'
+PACKAGE_STRING='RcppArmadillo 0.12.6.6.0'
 PACKAGE_BUGREPORT='[email protected]'
 PACKAGE_URL=''
 
@@ -1229,7 +1229,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures RcppArmadillo 0.12.6.5.0 to adapt to many kinds of systems.
+\`configure' configures RcppArmadillo 0.12.6.6.0 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1291,7 +1291,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of RcppArmadillo 0.12.6.5.0:";;
+     short | recursive ) echo "Configuration of RcppArmadillo 0.12.6.6.0:";;
    esac
   cat <<\_ACEOF
 
@@ -1372,7 +1372,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-RcppArmadillo configure 0.12.6.5.0
+RcppArmadillo configure 0.12.6.6.0
 generated by GNU Autoconf 2.71
 
 Copyright (C) 2021 Free Software Foundation, Inc.
@@ -1486,7 +1486,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by RcppArmadillo $as_me 0.12.6.5.0, which was
+It was created by RcppArmadillo $as_me 0.12.6.6.0, which was
 generated by GNU Autoconf 2.71.  Invocation command line was
 
   $ $0$ac_configure_args_raw
@@ -3944,7 +3944,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by RcppArmadillo $as_me 0.12.6.5.0, which was
+This file was extended by RcppArmadillo $as_me 0.12.6.6.0, which was
 generated by GNU Autoconf 2.71.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -3999,7 +3999,7 @@ ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
-RcppArmadillo config.status 0.12.6.5.0
+RcppArmadillo config.status 0.12.6.6.0
 configured by $0, generated by GNU Autoconf 2.71,
   with options \\"\$ac_cs_config\\"
 

configure.ac

@@ -11,7 +11,7 @@
 AC_PREREQ([2.69])
 
 ## Process this file with autoconf to produce a configure script.
-AC_INIT([RcppArmadillo],[0.12.6.5.0],[[email protected]])
+AC_INIT([RcppArmadillo],[0.12.6.6.0],[[email protected]])
 
 ## Set R_HOME, respecting an environment variable if one is set
 : ${R_HOME=$(R RHOME)}

inst/NEWS.Rd

@@ -3,6 +3,19 @@
 \newcommand{\ghpr}{\href{https://github.com/RcppCore/RcppArmadillo/pull/#1}{##1}}
 \newcommand{\ghit}{\href{https://github.com/RcppCore/RcppArmadillo/issues/#1}{##1}}
 
+\section{Changes in RcppArmadillo version 0.12.6.6.0 (2023-10-31)}{
+  \itemize{
+    \item Upgraded to Armadillo release 12.6.6 (Cortisol Retox)
+    \itemize{
+      \item Fix \code{eigs_sym()}, \code{eigs_gen()} and \code{svds()} to
+      generate deterministic results in ARPACK mode
+    }
+    \item Add helper functions to set and get the number of OpenMP threads
+    \item Store initial thread count at package load and use in
+    thread-throttling helper (and resetter) suitable for CRAN constraints
+  }
+}
+
 \section{Changes in RcppArmadillo version 0.12.6.5.0 (2023-10-14)}{
   \itemize{
     \item Upgraded to Armadillo release 12.6.5 (Cortisol Retox)
@@ -219,7 +232,7 @@
     \item Accomodate upcoming \pkg{Matrix} 1.4-2 deprecation for
     conversion (Dirk in \ghpr{387})
     \item CRAN release with small upstream changes in Armadillo
-    11.2.{1,2,3} made since the last CRAN release 0.11.2.0.0
+    11.2.(1,2,3) made since the last CRAN release 0.11.2.0.0
     (Dirk in \ghpr{383}, \ghpr{384} and \ghpr{386})
     \item Undefine \code{arma_deprecated} warning as it affects a number
     of CRAN packages which will likely need a small transition
@@ -921,7 +934,7 @@
       \item smarter use of the element cache in sparse matrices
     }
     \item Aligned OpenMP flags in the RcppArmadillo.package.skeleton
-    used Makevars{,.win} to not use one C and C++ flag.
+    used Makevars(,.win) to not use one C and C++ flag.
   }
 }
 

inst/include/armadillo_bits/arma_version.hpp

@@ -23,7 +23,7 @@
 
 #define ARMA_VERSION_MAJOR 12
 #define ARMA_VERSION_MINOR 6
-#define ARMA_VERSION_PATCH 5
+#define ARMA_VERSION_PATCH 6
 #define ARMA_VERSION_NAME  "Cortisol Retox"
 
 

inst/include/armadillo_bits/sp_auxlib_bones.hpp

@@ -158,6 +158,31 @@ class sp_auxlib
 
 
 
+template<typename eT>
+struct eigs_randu_filler
+  {
+  std::mt19937_64                    local_engine;
+  std::uniform_real_distribution<eT> local_u_distr;
+
+  inline eigs_randu_filler();
+
+  inline void fill(podarray<eT>& X, const uword N);
+  };
+
+
+template<typename T>
+struct eigs_randu_filler< std::complex<T> >
+  {
+  std::mt19937_64                   local_engine;
+  std::uniform_real_distribution<T> local_u_distr;
+
+  inline eigs_randu_filler();
+
+  inline void fill(podarray< std::complex<T> >& X, const uword N);
+  };
+
+
+
 #if defined(ARMA_USE_SUPERLU)
 
 class superlu_supermatrix_wrangler

inst/include/armadillo_bits/sp_auxlib_meat.hpp

@@ -1921,7 +1921,9 @@ sp_auxlib::run_aupd_plain
     n = X.n_rows; // The size of the matrix (should already be set outside).
     blas_int nev = n_eigvals;
 
-    resid.zeros(n);
+    // resid.zeros(n);
+    eigs_randu_filler<T> randu_filler;
+    randu_filler.fill(resid, n);  // use deterministic starting point
 
     // Two contraints on NCV: (NCV > NEV) for sym problems or
     // (NCV > NEV + 2) for gen problems and (NCV <= N)
@@ -1956,7 +1958,8 @@ sp_auxlib::run_aupd_plain
     // Real work array of length lworkl.
     workl.zeros(lworkl);
 
-    info = 0; // Set to 0 initially to use random initial vector.
+    // info = 0; // resid to be filled with random values by ARPACK (non-deterministic)
+    info = 1; // resid is already filled with random values (deterministic)
 
     // All the parameters have been set or created.  Time to loop a lot.
     while(ido != 99)
@@ -2109,7 +2112,9 @@ sp_auxlib::run_aupd_shiftinvert
     n = X.n_rows; // The size of the matrix (should already be set outside).
     blas_int nev = n_eigvals;
 
-    resid.zeros(n);
+    // resid.zeros(n);
+    eigs_randu_filler<T> randu_filler;
+    randu_filler.fill(resid, n);  // use deterministic starting point
 
     // Two contraints on NCV: (NCV > NEV) for sym problems or
     // (NCV > NEV + 2) for gen problems and (NCV <= N)
@@ -2147,7 +2152,8 @@ sp_auxlib::run_aupd_shiftinvert
     // Real work array of length lworkl.
     workl.zeros(lworkl);
 
-    info = 0; // Set to 0 initially to use random initial vector.
+    // info = 0; // resid to be filled with random values by ARPACK (non-deterministic)
+    info = 1; // resid is already filled with random values (deterministic)
 
     superlu_opts superlu_opts_default;
     superlu::superlu_options_t options;
@@ -2439,6 +2445,85 @@ sp_auxlib::rudimentary_sym_check(const SpMat< std::complex<T> >& X)
 
 
 
+//
+
+
+
+template<typename eT>
+inline
+eigs_randu_filler<eT>::eigs_randu_filler()
+  {
+  arma_extra_debug_sigprint();
+
+  typedef typename std::mt19937_64::result_type local_seed_type;
+
+  local_engine.seed(local_seed_type(123));
+
+  typedef typename std::uniform_real_distribution<eT>::param_type local_param_type;
+
+  local_u_distr.param(local_param_type(-1.0, +1.0));
+  }
+
+
+template<typename eT>
+inline
+void
+eigs_randu_filler<eT>::fill(podarray<eT>& X, const uword N)
+  {
+  arma_extra_debug_sigprint();
+
+  X.set_size(N);
+
+  eT* X_mem = X.memptr();
+
+  for(uword i=0; i<N; ++i)  { X_mem[i] = eT( local_u_distr(local_engine) ); }
+  }
+
+
+template<typename T>
+inline
+eigs_randu_filler< std::complex<T> >::eigs_randu_filler()
+  {
+  arma_extra_debug_sigprint();
+
+  typedef typename std::mt19937_64::result_type local_seed_type;
+
+  local_engine.seed(local_seed_type(123));
+
+  typedef typename std::uniform_real_distribution<T>::param_type local_param_type;
+
+  local_u_distr.param(local_param_type(-1.0, +1.0));
+  }
+
+
+template<typename T>
+inline
+void
+eigs_randu_filler< std::complex<T> >::fill(podarray< std::complex<T> >& X, const uword N)
+  {
+  arma_extra_debug_sigprint();
+
+  typedef typename std::complex<T> eT;
+
+  X.set_size(N);
+
+  eT* X_mem = X.memptr();
+
+  for(uword i=0; i<N; ++i)
+    {
+    eT& X_mem_i = X_mem[i];
+
+    X_mem_i.real( T(local_u_distr(local_engine)) );
+    X_mem_i.imag( T(local_u_distr(local_engine)) );
+    }
+  }
+
+
+
+//
+
+
+
 #if defined(ARMA_USE_SUPERLU)
 
 inline