diff --git a/inference/inference-inl.h b/inference/inference-inl.h
index d3c431ffe..7f1845e66 100644
--- a/inference/inference-inl.h
+++ b/inference/inference-inl.h
@@ -81,11 +81,12 @@ Permutation::shared_ptr Inference::PermutationCOLAMD(const VARIABLEINDEXTYPE& va
     for(size_t i=0; i<nVars+1; ++i)
       cout << "p[" << i << "] = " << p[i] << endl;
 
-  //double* knobs = NULL; /* colamd arg 6: parameters (uses defaults if NULL) */
-  double knobs[CCOLAMD_KNOBS];
-  ccolamd_set_defaults(knobs);
-  knobs[CCOLAMD_DENSE_ROW]=-1;
-  knobs[CCOLAMD_DENSE_COL]=-1;
+  double* knobs = NULL; /* colamd arg 6: parameters (uses defaults if NULL) */
+//  double knobs[CCOLAMD_KNOBS];
+//  ccolamd_set_defaults(knobs);
+//  knobs[CCOLAMD_DENSE_ROW]=-1;
+//  knobs[CCOLAMD_DENSE_COL]=-1;
+
   int stats[CCOLAMD_STATS]; /* colamd arg 7: colamd output statistics and error codes */
 
   // call colamd, result will be in p
@@ -96,6 +97,8 @@ Permutation::shared_ptr Inference::PermutationCOLAMD(const VARIABLEINDEXTYPE& va
   delete[] A; // delete symbolic A
   delete[] cmember;
 
+//  ccolamd_report(stats);
+
   // Convert elimination ordering in p to an ordering
   Permutation::shared_ptr permutation(new Permutation(nVars));
   for (Index j = 0; j < nVars; j++) {