Changeset 1172 for cpp

Timestamp:

04/22/22 17:42:13 (3 years ago)

Author:

Maciej Komosinski

Message:

Introduced EMD_LIMIT_WARNING_MESSAGES to limit the number of warning messages printed to stderr

Location:

cpp/frams/model/similarity/EMD

Files:

• emd.c (modified) (1 diff)
• emd.h (modified) (1 diff)

cpp/frams/model/similarity/EMD/emd.c

@@ -147 +147 @@
         }
 
-      if (itr == MAX_ITERATIONS)
-        fprintf(stderr, "emd: Maximum number of iterations has been reached (%d)\n",
-                MAX_ITERATIONS);
-    }
+          if (itr == MAX_ITERATIONS) //print a warning message
+          {
+#define EMD_LIMIT_WARNING_MESSAGES 10 //if thousands of such messages are printed, we group them to avoid spamming stderr. Undefine (comment out) to disable.
+#ifdef EMD_LIMIT_WARNING_MESSAGES
+                  static int warncounter = 0;
+                  static int warnnextlimit = 1;
+                  warncounter++;
+                  if (warncounter == warnnextlimit)
+                  {
+                          fprintf(stderr, "[repeated %dx in total, next warning at %dx] ", warncounter, warnnextlimit * EMD_LIMIT_WARNING_MESSAGES);
+#endif
+                          fprintf(stderr, "emd: Maximum number of iterations (%d) has been reached\n", MAX_ITERATIONS);
+#ifdef EMD_LIMIT_WARNING_MESSAGES
+                          warnnextlimit *= EMD_LIMIT_WARNING_MESSAGES;
+                  }
+#endif
+          }
+  }
 
   /* COMPUTE THE TOTAL FLOW */

cpp/frams/model/similarity/EMD/emd.h

@@ -19 +19 @@
 // r1050: Renamed variables that caused problems with g++ 7.3.0
 // r1062: Global static arrays moved to a function and now allocated dynamically; removed #defined limit of MAX_SIG_SIZE=1000
+// r1172: Introduced EMD_LIMIT_WARNING_MESSAGES to limit the number of warning messages printed to stderr: "emd: Maximum number of iterations has been reached"