Added a few missing plt.close(fig) statements

tools/plotting/fastnnlo_absolute.py

@@ -510,5 +510,6 @@ for i in range(nscl):
             fignam = args['filename']+'.scl'+str(i+1)+'.absolute-index-'+str(ylim2)+'.png'
     if verb: print('[fastnnlo_absolute]: Writing figure: {:s}'.format(fignam))
     plt.savefig(fignam, bbox_inches='tight')
+    plt.close(fig)
 
 exit(0)

tools/plotting/fastnnlo_kfaccomp.py

@@ -471,5 +471,6 @@ else:
 print('[fastnnlo_kfaccomp]: Writing figure {:s}'.format(fignam))
 
 plt.savefig(fignam)
+plt.close(fig)
 
 exit(0)

tools/plotting/fastnnlo_runtime.py

@@ -330,6 +330,7 @@ def plot_elapsed_time(infodict, out_path, out_name, formats):
             filename += channels[0]  + '.' + basename + '.' + fmt
         print('[fastnnlo_runtime]: Saving runtime plot {}'.format(filename))
         fig.savefig(filename)
+    plt.close(fig)
 
 def plot_events_per_hour(infodict, out_path, out_name, formats):
 
@@ -428,6 +429,7 @@ def plot_events_per_hour(infodict, out_path, out_name, formats):
             filename += channels[0]  + '.' + basename + '.' + fmt
         print('[fastnnlo_runtime]: Saving event rate plot {}'.format(filename))
         fig.savefig(filename)
+    plt.close(fig)
 
 if __name__ == "__main__":
     main()

tools/plotting/fastnnlo_scaleclosure.py

@@ -475,5 +475,6 @@ for i in range(nscl):
     else:
         fignam = args['filename']+'.scl'+str(i+1)+'.scaleclosure-'+str(ylim2)+'.png'
     plt.savefig(fignam)
+    plt.close(fig)
 
 exit(0)