Added Python script to summarize memory usage.

src/utils/memory_usage.py

@@ -0,0 +1,63 @@
+#!/usr/bin/env python
+
+# This script reads a cross_sections.out file, adds up the memory usage for each
+# nuclide and S(a,b) table, and displays the total memory usage
+
+import sys
+import os
+import matplotlib.pyplot as pyplot
+
+if len(sys.argv) > 1:
+    # Get path to cross_sections.out file from command line argument
+    filename = sys.argv[-1]
+else:
+    # Set default path for cross_sections.out
+    filename = 'cross_sections.out'
+    if not os.path.exists(filename):
+        raise OSError('Could not find cross_sections.out file!')
+
+# Open file handle for cross_sections.out file
+f = open(filename, 'r')
+
+# Initialize memory size arrays
+memory_xs = []
+memory_angle = []
+memory_energy = []
+memory_urr = []
+memory_total = []
+memory_sab = []
+
+while True:
+    # Read next line in file
+    line = f.readline()
+
+    # Check for EOF
+    if line == '':
+        break
+
+    # Look for block listing memory usage for a nuclide
+    words = line.split()
+    if len(words) == 2 and words[0] == 'Memory':
+        memory_xs.append(int(f.readline().split()[-2]))
+        memory_angle.append(int(f.readline().split()[-2]))
+        memory_energy.append(int(f.readline().split()[-2]))
+        memory_urr.append(int(f.readline().split()[-2]))
+        memory_total.append(int(f.readline().split()[-2]))
+
+    # Look for memory usage for S(a,b) table
+    if len(words) == 5 and words[1] == 'Used':
+        memory_sab.append(int(words[-2]))
+
+# Write out summary memory usage
+print('Memory Requirements')
+print('  Reaction Cross Sections        = ' + str(sum(memory_xs)))
+print('  Secondary Angle Distributions  = ' + str(sum(memory_angle)))
+print('  Secondary Energy Distributions = ' + str(sum(memory_energy)))
+print('  Probability Tables             = ' + str(sum(memory_urr)))
+print('  S(a,b) Tables                  = ' + str(sum(memory_sab)))
+print('  Total                          = ' + str(sum(memory_total)))
+
+# Histograms
+# pyplot.hist(memory_xs,100)
+# pyplot.title('Memory for Cross Sections')
+# pyplot.show()