diff --git a/cacti/cacti_interface.cc b/cacti/cacti_interface.cc
index a337c8a..fae6caf 100644
--- a/cacti/cacti_interface.cc
+++ b/cacti/cacti_interface.cc
@@ -163,6 +163,7 @@ uca_org_t :: uca_org_t()
  data_array2(0),
  uca_pg_reference(0)
 {
+	memset((void *)this, 0, sizeof(uca_org_t));
 	uca_q = vector<uca_org_t * >(0);
 }
 
diff --git a/cacti/cacti_interface.h b/cacti/cacti_interface.h
index b2b8c4c..c125625 100644
--- a/cacti/cacti_interface.h
+++ b/cacti/cacti_interface.h
@@ -578,6 +578,7 @@ uca_org_t cacti_interface(
 class mem_array
 {
   public:
+  mem_array() { memset((void *)this, 0, sizeof(mem_array)); }
   int    Ndcm;
   int    Ndwl;
   int    Ndbl;
diff --git a/cacti/io.cc b/cacti/io.cc
index cb40e82..9fb4543 100644
--- a/cacti/io.cc
+++ b/cacti/io.cc
@@ -45,6 +45,7 @@
 #include "crossbar.h"
 #include "arbiter.h"
 #include "version_cacti.h"
+#include <wrapper/caching/cache.h>
 //#include "highradix.h"
 
 using namespace std;
@@ -61,6 +62,9 @@ InputParameter::InputParameter()
  cl_vertical (true),
  long_channel_device(false)
 {
+	memset((void *)this, 0, sizeof(InputParameter));
+	perfloss = 0.01;
+	cl_vertical = true;
 	dvs_voltage = std::vector<double>(0);
 }
 
@@ -3402,7 +3406,12 @@ uca_org_t cacti_interface(InputParameter  * const local_interface)
   init_tech_params(g_ip->F_sz_um, false);
   Wire winit; // Do not delete this line. It initializes wires.
 
+  cache_key_t key;
+  cache_key(&key, g_ip);
+  if (!cache_get(&key, &fin_res)) {
   solve(&fin_res);
+  cache_set(&key, &fin_res);
+  }
 
   if (!g_ip->dvs_voltage.empty())
   {