From 6e77ddc532f4bfb322c57f93bd58411d4c248f64 Mon Sep 17 00:00:00 2001
From: Shikhar Kumar <shikhark@mit.edu>
Date: Mon, 22 Jul 2019 14:07:58 -0400
Subject: [PATCH] Reduce err properly

---
 src/cmfd_solver.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/cmfd_solver.cpp b/src/cmfd_solver.cpp
index 472107d0c..11d6d97b5 100644
--- a/src/cmfd_solver.cpp
+++ b/src/cmfd_solver.cpp
@@ -133,7 +133,6 @@ int cmfd_linsolver_1g(const double* A_data, const double* b, double* x,
 
     // Check convergence
     err = std::sqrt(err / cmfd::dim);
-    std::cout << err << "\n";
     if (err < tol)
       return igs;
 
@@ -220,7 +219,7 @@ int cmfd_linsolver_2g(const double* A_data, const double* b, double* x,
 
         // Compute residual and update error
         double res = (tmpx[irow] - x[irow]) / tmpx[irow];
-        err = res * res;
+        err += res * res;
       }
     }