Looks like defined(_OPENMP) is what's known in the MSVC(2019) world…

…: added that one as another enabling condition since benchmarks have shown MSVC2019's `/openmp:experimental` to deliver. :-) (See tesseract-ocr#3486 benchmark reports on @stweil's DotProductNative() implementation)
stweil · Jul 13, 2021 · d025c78 · d025c78
1 parent 3eae6d7
commit d025c78
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/arch/dotproduct.cpp b/src/arch/dotproduct.cpp
@@ -21,7 +21,7 @@ namespace tesseract {
 // Computes and returns the dot product of the two n-vectors u and v.
 TFloat DotProductNative(const TFloat *u, const TFloat *v, int n) {
   TFloat total = 0;
-#if defined(OPENMP_SIMD)
+#if defined(OPENMP_SIMD) || defined(_OPENMP)
 #pragma omp simd reduction(+:total)
 #endif
   for (int k = 0; k < n; k++) {