psm: add message about reusing

Signed-off-by: Peter Gadfort <[email protected]>
The-OpenROAD-Project · Jan 10, 2025 · 1a29ac3 · 1a29ac3
1 parent ae65782
commit 1a29ac3
Show file tree

Hide file tree

Showing 3 changed files with 4 additions and 29 deletions.
diff --git a/src/psm/src/pdnsim.cpp b/src/psm/src/pdnsim.cpp
@@ -119,6 +119,8 @@ void PDNSim::analyzePowerGrid(odb::dbNet* net,
   auto* solver = getIRSolver(net, false);
   if (!use_prev_solution || !solver->hasSolution(corner)) {
     solver->solve(corner, source_type, voltage_source_file);
+  } else {
+    logger_->info(utl::PSM, 11, "Reusing previous solution");
   }
   solver->report(corner);
 

diff --git a/src/psm/test/gcd_no_vsrc_reuse.ok b/src/psm/test/gcd_no_vsrc_reuse.ok
@@ -29,6 +29,7 @@ Worstcase IR drop: 1.49e-03 V
 Percentage drop  : 0.10 %
 ######################################
 [INFO PSM-0040] All shapes on net VDD are connected.
+[INFO PSM-0011] Reusing previous solution
 ########## IR report #################
 Net              : VDD
 Corner           : default
@@ -40,6 +41,7 @@ Worstcase IR drop: 3.28e-04 V
 Percentage drop  : 0.02 %
 ######################################
 [INFO PSM-0040] All shapes on net VSS are connected.
+[INFO PSM-0011] Reusing previous solution
 ########## IR report #################
 Net              : VSS
 Corner           : default
@@ -50,27 +52,3 @@ Average IR drop  : 9.19e-04 V
 Worstcase IR drop: 1.49e-03 V
 Percentage drop  : 0.10 %
 ######################################
-[INFO PSM-0040] All shapes on net VDD are connected.
-[INFO PSM-0073] Using bump pattern with x-pitch 140.0000um, y-pitch 140.0000um, and size 70.0000um with an reduction factor of 3x.
-########## IR report #################
-Net              : VDD
-Corner           : default
-Supply voltage   : 1.50e+00 V
-Worstcase voltage: 1.49e+00 V
-Average voltage  : 1.50e+00 V
-Average IR drop  : 1.33e-03 V
-Worstcase IR drop: 1.41e-02 V
-Percentage drop  : 0.94 %
-######################################
-[INFO PSM-0040] All shapes on net VSS are connected.
-[INFO PSM-0073] Using bump pattern with x-pitch 140.0000um, y-pitch 140.0000um, and size 70.0000um with an reduction factor of 3x.
-########## IR report #################
-Net              : VSS
-Corner           : default
-Supply voltage   : 0.00e+00 V
-Worstcase voltage: 3.00e-02 V
-Average voltage  : 8.15e-03 V
-Average IR drop  : 8.15e-03 V
-Worstcase IR drop: 3.00e-02 V
-Percentage drop  : 2.00 %
-######################################
diff --git a/src/psm/test/gcd_no_vsrc_reuse.tcl b/src/psm/test/gcd_no_vsrc_reuse.tcl
@@ -8,10 +8,5 @@ set_pdnsim_net_voltage -net VDD -voltage 1.5
 analyze_power_grid -net VDD -allow_reuse
 analyze_power_grid -net VSS -allow_reuse
 
-set_pdnsim_inst_power -inst _440_ -power 1e-3
-
 analyze_power_grid -net VDD -allow_reuse
 analyze_power_grid -net VSS -allow_reuse
-
-analyze_power_grid -net VDD
-analyze_power_grid -net VSS