slight SumRows optimization

Author: unixpickle

kernels32.cu

@@ -124,6 +124,14 @@ void addScaler(float s, float * dest, int destLen) {
 	}
 }
 
+extern "C" __global__
+void setScaler(float s, float * dest, int destLen) {
+	int tid = blockIdx.x * blockDim.x + threadIdx.x;
+	if (tid < destLen) {
+		dest[tid] = s;
+	}
+}
+
 extern "C" __global__
 void addChunks(float * dest, float * source, int destLen, int chunkSize) {
   int tid = blockIdx.x * blockDim.x + threadIdx.x;