Suppressing initial_root_node_solve

ERGO-Code · Dec 2, 2024 · 593ec7b · 593ec7b
1 parent 3c98069
commit 593ec7b
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Showing 2 changed files with 11 additions and 6 deletions.
diff --git a/src/mip/HighsMipSolver.cpp b/src/mip/HighsMipSolver.cpp
@@ -168,7 +168,8 @@ void HighsMipSolver::run() {
     highsLogUser(options_mip_->log_options, HighsLogType::kInfo,
                  "MIP-Timing: %11.2g - completed setup\n",
                  timer_.read(timer_.total_clock));
-  if (!submip) {
+  const bool initial_root_node_solve = false;
+  if (!submip && initial_root_node_solve) {
     if (analysis_.analyse_mip_time) {
       highsLogUser(options_mip_->log_options, HighsLogType::kInfo,
                    "MIP-Timing: %11.2g - starting  relaxation simplex solve\n",

diff --git a/src/mip/HighsMipSolverData.cpp b/src/mip/HighsMipSolverData.cpp
@@ -302,7 +302,7 @@ void HighsMipSolverData::startAnalyticCenterComputation(
   taskGroup.spawn([&]() {
     // first check if the analytic centre computation should be cancelled, e.g.
     // due to early return in the root node evaluation
-    const bool ac_logging = !mipsolver.submip;  // 2049 unset this
+    const bool ac_logging = false;  //! mipsolver.submip;  // 2049 unset this
     Highs ipm;
     if (mipsolver.options_mip_->mip_old_analytic_centre_method) {
       // Original calculation is just IPM with crossover off
@@ -315,15 +315,16 @@ void HighsMipSolverData::startAnalyticCenterComputation(
     }
     ipm.setOptionValue("presolve", "off");
     ipm.setOptionValue("output_flag", false);
-    ipm.setOptionValue("output_flag",
-                       !mipsolver.submip);  // 2049 unset this ultimately
+    //    ipm.setOptionValue("output_flag", !mipsolver.submip);  // 2049 unset
+    //    this ultimately
     ipm.setOptionValue("ipm_iteration_limit", 200);
     double time_available =
         std::max(mipsolver.options_mip_->time_limit -
                      mipsolver.timer_.read(mipsolver.timer_.total_clock),
                  0.1);
     ipm.setOptionValue("time_limit", time_available);
-    ipm.setOptionValue("kkt_logging", !mipsolver.submip);  // 2049 unset this
+    //    ipm.setOptionValue("kkt_logging", !mipsolver.submip);  // 2049 unset
+    //    this
     // ultimately
     //
     // cr1_iteration_limit is what's set internal to IPX to limit the
@@ -344,7 +345,10 @@ void HighsMipSolverData::startAnalyticCenterComputation(
     // 2049 Set this ultimately
     // ipm.setOptionValue("cr2_iteration_limit", cr2_iteration_limit);
 
-    if (!mipsolver.submip) this->simplex_stats.report(stdout);
+    //    if (!mipsolver.submip) this->simplex_stats.report(stdout);2049 unset
+    //    this
+    // ultimately
+    //
     ipm.passSimplexStats(this->simplex_stats);
     HighsLp lpmodel(*mipsolver.model_);
     lpmodel.col_cost_.assign(lpmodel.num_col_, 0.0);