Use main thread as last thread (#65)

* Use main thread as last thread * Move threadFlag, reuse j variable
jonaschn · Jun 22, 2018 · a1c8ab4 · a1c8ab4
1 parent 9c77bee
commit a1c8ab4
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/benchmark/main.cpp b/benchmark/main.cpp
@@ -127,14 +127,21 @@ void benchmark(size_t colSize, int colCount, int threadCount, int iterations, bo
  clearCache();
  }
 
- for (int j = 0; j < threadCount; j++) {
+ for (int j = 0; j < threadCount - 1; j++) {
  size_t endIndex = startIndex + partLength + (j < overhang ? 1 : 0);
  auto threadInstance = new thread(threadFunc<T>, ref(attributeVector), colCount, startIndex,
  endIndex, j);
  threads.push_back(threadInstance);
  startIndex = endIndex;
  }
+
+
+ // run threadFunc on main thread
+ int j = threadCount - 1;
+ size_t endIndex = startIndex + partLength + (j < overhang ? 1 : 0);
+
  threadFlag = true;
+ threadFunc<T>(ref(attributeVector), colCount, startIndex, endIndex, j);
 
  for (thread *thread: threads) {
  (*thread).join();