Merge pull request #16761 from VinInn/patch-3

protect DAClusterizerInZ_vect.cc from a too small value
cms-sw · Nov 26, 2016 · 7dd085e · 7dd085e
2 parents 42b74f5 + 99eec6a
commit 7dd085e
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/RecoVertex/PrimaryVertexProducer/src/DAClusterizerInZ_vect.cc b/RecoVertex/PrimaryVertexProducer/src/DAClusterizerInZ_vect.cc
@@ -188,12 +188,12 @@ double DAClusterizerInZ_vect::update(double beta, track_t & gtracks,
     local_exp_list(gvertices._ei_cache, gvertices._ei, nv);
 
     gtracks._Z_sum[itrack] = kernel_add_Z(gvertices);
-
+    if (edm::isNotFinite(gtracks._Z_sum[itrack])) gtracks._Z_sum[itrack] = 0.0;
     // used in the next major loop to follow
     if (!useRho0)
       sumpi += gtracks._pi[itrack];
 
-    if (gtracks._Z_sum[itrack] > 0) {
+    if (gtracks._Z_sum[itrack] > 1.e-100) {
       kernel_calc_normalization(itrack, gtracks, gvertices);
     }
   }