Performance fix for single precision dot operation

shogun-toolbox · Apr 7, 2012 · ca1f345 · ca1f345
1 parent a553686
commit ca1f345
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/shogun/mathematics/Math.cpp b/src/shogun/mathematics/Math.cpp
@@ -584,13 +584,13 @@ float64_t CMath::dot(const float64_t* v1, const float64_t* v2, int32_t n)
 float64_t CMath::dot(
 		const float32_t* v1, const float32_t* v2, int32_t n)
 {
-	float64_t r=0;
+	float32_t r=0;
 #ifdef HAVE_LAPACK
 	int32_t skip=1;
 	r = cblas_sdot(n, v1, skip, v2, skip);
 #else
 	for (int32_t i=0; i<n; i++)
-		r+=((float64_t)v1[i])*v2[i];
+		r+=v1[i]*v2[i];
 #endif
 	return r;
 }