Updated PR#196 to use a common hash function

src/misc/utils.cc

@@ -87,18 +87,9 @@ void ncclDebugLog(ncclDebugLogLevel level, unsigned long flags, const char *file
   }
 }
 
-uint64_t getHash(const char* string) {
+uint64_t getHash(const char* string, int n) {
   // Based on DJB2, result = result * 33 + char
   uint64_t result = 5381;
-  for (int c = 0; string[c] != '\0'; c++) {
-    result = ((result << 5) + result) + string[c];
-  }
-  return result;
-}
-
-uint64_t getnHash(const char* string, int n) {
-  // Based on DJB2, result = result * 33 + char
-  uint64_t result = 9527;
   for (int c = 0; c < n; c++) {
     result = ((result << 5) + result) + string[c];
   }
@@ -129,7 +120,7 @@ uint64_t getHostHash(void) {
   uname[offset]='\0';
   TRACE(NCCL_INIT,"unique hostname '%s'", uname);
 
-  return getHash(uname);
+  return getHash(uname, strlen(uname));
 }
 
 /* Generate a hash of the unique identifying string for this process
@@ -149,7 +140,7 @@ uint64_t getPidHash(void) {
   pname[plen+len]='\0';
   TRACE(NCCL_INIT,"unique PID '%s'", pname);
 
-  return getHash(pname);
+  return getHash(pname, strlen(pname));
 }
 
 int parseStringList(const char* string, struct netIf* ifList, int maxList) {