Reduce diff

csrc/ops.cu

@@ -41,6 +41,14 @@ void quantize(float *code, float *A, unsigned char *out, int n)
   CUDA_CHECK_RETURN(cudaPeekAtLastError());
 }
 
+void dequantize(float *code, unsigned char *A, float *out, int n)
+{
+  int blocks = n/1024;
+  blocks = n % 1024 == 0 ? blocks : blocks + 1;
+  kDequantize<<<blocks, 1024>>>(code, A, out, n);
+  CUDA_CHECK_RETURN(cudaPeekAtLastError());
+}
+
 template <typename T, int STOCHASTIC> void quantizeBlockwise(float * code, T *A, float *absmax, unsigned char *out, float *rand, int rand_offset, const int n)
 {
   int blocks = n/4096;