occupancy in cuda

cuda/occupancy.cu

@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include <cuda_runtime.h>
+
+__global__ void myKernel() {
+    // Kernel code goes here
+}
+
+int main() {
+    // Set the device (GPU)
+    cudaSetDevice(0);
+
+    // Get device properties
+    cudaDeviceProp prop;
+    cudaGetDeviceProperties(&prop, 0);
+
+    // Set kernel parameters (adjust as needed)
+    int numThreadsPerBlock = 256;
+    int numBlocks = 16;
+
+    // Compute occupancy
+    int activeWarps;
+    int maxWarps;
+    cudaOccupancyMaxActiveBlocksPerMultiprocessor(&activeWarps, myKernel, numThreadsPerBlock, 0);
+    maxWarps = prop.maxThreadsPerMultiProcessor / prop.warpSize;
+
+    // Compute occupancy ratio
+    float occupancy = (float)activeWarps / maxWarps;
+
+    printf("Occupancy: %f\n", occupancy);
+
+    return 0;
+}