Installation

1. Install cuda toolkit
2. Instal visual studio C++ development environment
3. Create CUDA Runtime project

Compiler Error

If you get an error with default code, probably your device compute capability is incompatible with current selected one.

• https://developer.nvidia.com/cuda-gpus
• https://en.wikipedia.org/wiki/CUDA

Hello CUDA

#include "cuda_runtime.h"
//#include "device_launch_parameters.h"

#include <stdio.h>

__global__ void helloKernel(){
	printf("Hello CUDA\n");
}

int main(){
	helloKernel << <16, 1 >> > ();
}

Query Device Properties

#include "cuda_runtime.h"
#include "device_launch_parameters.h"

#include <stdio.h> 

int main() {
    int nDevices;

    cudaGetDeviceCount(&nDevices);
    for (int i = 0; i < nDevices; i++) {
        cudaDeviceProp prop;
        cudaGetDeviceProperties(&prop, i);
        printf("Device Number: %d\n", i);
        printf("  Device name: %s\n", prop.name);
        printf("  Memory Clock Rate (KHz): %d\n",
            prop.memoryClockRate);
        printf("  Memory Bus Width (bits): %d\n",
            prop.memoryBusWidth);
        printf("  Peak Memory Bandwidth (GB/s): %f\n\n",
            2.0 * prop.memoryClockRate * (prop.memoryBusWidth / 8) / 1.0e6);
    }
}

Device Number: 0
  Device name: NVIDIA GeForce GTX 950M
  Memory Clock Rate (KHz): 1001000
  Memory Bus Width (bits): 128
  Peak Memory Bandwidth (GB/s): 32.032000

https://developer.nvidia.com/blog/how-query-device-properties-and-handle-errors-cuda-cc/