X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/book_gpu.git/blobdiff_plain/4f8020b1c6324b056b53b4325cd80d59bb7cf19f..ca38d6218b9ba6a0fd2e0b2126c6b38146504b8e:/BookGPU/Chapters/chapter5/code/ex1.cu

diff --git a/BookGPU/Chapters/chapter5/code/ex1.cu b/BookGPU/Chapters/chapter5/code/ex1.cu
index 13d4322..847d20a 100644
--- a/BookGPU/Chapters/chapter5/code/ex1.cu
+++ b/BookGPU/Chapters/chapter5/code/ex1.cu
@@ -1,29 +1,29 @@
-#include <gpulab/vector.h>
-
-__global__ void add(double* a, double const* b, int N)
-{
-	int i = blockDim.x*blockIdx.x + threadIdx.x;
-	if(i<N)
-		a[i] += b[i];
-}
-
-int main(int argc, char *argv[])
-{
-	int N = 1000;
-
-	// Plain CUDA example
-	double *a1, *b1;
-	cudaMalloc((void**)&a1, N*sizeof(double));
-	cudaMalloc((void**)&b1, N*sizeof(double));
-	cudaMemset(a1, 2.0, N);
-	cudaMemset(b1, 3.0, N);
-	int blocksize = 128;
-	add<<<(N+blocksize-1)/blocksize,blocksize>>>(a1, b1, N);
-
-	// gpulab example
-	gpulab::vector<double,gpulab::device_memory> a2(N, 2.0);
-	gpulab::vector<double,gpulab::device_memory> b2(N, 3.0);
-	a2.axpy(1.0, b2); // BLAS1: a2 = 1*b2 + a2
-	
-	return 0;
+#include <gpulab/vector.h>
+
+__global__ void add(double* a, double const* b, int N)
+{
+	int i = blockDim.x*blockIdx.x + threadIdx.x;
+	if(i<N)
+		a[i] += b[i];
+}
+
+int main(int argc, char *argv[])
+{
+	int N = 1000;
+
+	// Basic CUDA example
+	double *a1, *b1;
+	cudaMalloc((void**)&a1, N*sizeof(double));
+	cudaMalloc((void**)&b1, N*sizeof(double));
+	cudaMemset(a1, 2.0, N);
+	cudaMemset(b1, 3.0, N);
+	int blocksize = 128;
+	add<<<(N+blocksize-1)/blocksize,blocksize>>>(a1, b1, N);
+
+	// gpulab example
+	gpulab::vector<double,gpulab::device_memory> a2(N, 2.0);
+	gpulab::vector<double,gpulab::device_memory> b2(N, 3.0);
+	a2.axpy(1.0, b2); // BLAS1: a2 = 1*b2 + a2
+	
+	return 0;
 }
\ No newline at end of file