From 4a03fc9a03593d784be1832223bb7056503d7129 Mon Sep 17 00:00:00 2001
From: Shikhar Kumar <shikhark@mit.edu>
Date: Wed, 17 Oct 2018 11:09:01 -0400
Subject: [PATCH] Add more flushes for print statements

---
 openmc/cmfd.py | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/openmc/cmfd.py b/openmc/cmfd.py
index 7120558b78..3ce48c2ac3 100644
--- a/openmc/cmfd.py
+++ b/openmc/cmfd.py
@@ -33,7 +33,6 @@ from openmc.checkvalue import (check_type, check_length, check_value,
                                check_greater_than, check_less_than)
 from openmc.exceptions import OpenMCError
 
-
 """
 --------------
 CMFD CONSTANTS
@@ -59,6 +58,7 @@ _CURRENTS = {
     'out_bottom': 8, 'in_bottom': 9, 'out_top'  : 10, 'in_top'  : 11
 }
 
+
 class CMFDMesh(object):
     """A structured Cartesian mesh used for Coarse Mesh Finite Difference (CMFD)
     acceleration.
@@ -604,6 +604,7 @@ class CMFD(object):
         tree.write("cmfd.xml", xml_declaration=True,
                    encoding='utf-8', method="xml")
 
+
 class CMFDRun(object):
     r"""Class to run openmc with CMFD acceleration through the C API. Running
     openmc in this manner obviates the need for defining CMFD parameters
@@ -782,7 +783,6 @@ class CMFDRun(object):
         set in this method.
 
         """
-
         # Variables that users can modify
         self._cmfd_begin = 1
         self._dhat_reset = False
@@ -1110,7 +1110,7 @@ class CMFDRun(object):
      Solving matrices              =  {2:.5E} seconds
 <<<<<<< HEAD
 """.format(self._time_cmfd, self._time_cmfdbuild, self._time_cmfdsolve))
-        sys.stdout.flush()
+          sys.stdout.flush()
 
     def _configure_cmfd(self):
         """Initialize CMFD parameters and set CMFD input variables"""
@@ -1269,6 +1269,7 @@ class CMFDRun(object):
         # Print message
         if openmc.capi.settings.verbosity >= 6 and openmc.capi.master():
             print(' CMFD tallies reset')
+            sys.stdout.flush()
 
         # Reset CMFD tallies
         tallies = openmc.capi.tallies
@@ -1601,8 +1602,10 @@ class CMFDRun(object):
 
             if openmc.capi.master() and np.any(source_energies < energy[0]):
                 print(' WARNING: Source pt below energy grid')
+                sys.stdout.flush()
             if openmc.capi.master() and np.any(source_energies > energy[-1]):
                 print(' WARNING: Source pt above energy grid')
+                sys.stdout.flush()
 
     def _count_bank_sites(self):
         """Determines the number of fission bank sites in each cell of a given
@@ -2349,6 +2352,7 @@ class CMFDRun(object):
             str3 = 'k-error:  {0:.5E}'.format(kerr)
             str4 = 'src-error:  {0:.5E}'.format(serr)
             print('{0:8s}{1:20s}{2:25s}{3:s}'.format(str1, str2, str3, str4))
+            sys.stdout.flush()
 
         return iconv, serr
 
@@ -3167,6 +3171,7 @@ class CMFDRun(object):
         if self._dhat_reset and openmc.capi.settings.verbosity >= 8 and \
                 openmc.capi.master():
             print(' Dhats reset to zero')
+            sys.stdout.flush()
 
     def _get_reflector_albedo(self, l, g, i, j, k):
         """Calculates the albedo to the reflector by returning ratio of