编译cuda文件发生错误
nvcc -arch=sm_60 --output-file astralpathcuda.exe D:\project\AstralPathCuda\AstralPathCuda\temp\20240
7262323.cu
202407262323.cu
Command-line error #571: invalid option: --orig_src_path_name
好像不是cu文件的问题
#include<stdio.h>
#include <cuda_runtime.h>
using namespace std;
//现在开始全局变量书写
int N = 1;//global
//现在开始全局内存书写
__device__ int d_z[10] = {};//length:10
__global__ void sum(int *d_x,int N) {
const int tid = threadIdx.x;
const int bid = blockIdx.x;
__shared__ int __shared__s_x[128];
const int n = bid * blockDim.x + tid;
int x = 0;
if(n < N) {
__shared__s_x[n] = d_x[n];
}
__syncthreads();
for (int offset = blockDim.x >> 1; offset >= 32; offset >>= 1)
{
if (tid < offset)
{
__shared__s_x[tid] += __shared__s_x[tid + offset];
}
__syncthreads();
}
x = __shared__s_x[tid];
for (int offset = 16; offset > 0; offset >>= 1)
{
x += __shfl_down_sync(0xffffffff,x, offset);
}
if (tid == 0)
{
atomicAdd(&d_z[0], x);
}
}
int main(int argc, char* argv[]) {
N = argc - 1;
int *a = (int*) malloc(sizeof(int)*N);
int *b = (int *) malloc(sizeof(int)*10);
for (int x = 0 ;x < N;x ++) {
a[x] = atoi(argv[x + 1]);
}
int *d_x;
cudaMalloc((void **)&d_x,sizeof(int)*N);
cudaMemcpy(d_x,a,sizeof(int)*N,cudaMemcpyHostToDevice);
const int block_size = 128;
const int grid_size = (N + block_size - 1) / block_size;
cudaEvent_t start ;
cudaEvent_t stop ;
cudaEventCreate(&start);
cudaEventCreate(&stop);
cudaEventRecord(start);
sum<<<grid_size,block_size>>>(d_x,N);
cudaDeviceSynchronize();
cudaEventRecord(stop);
cudaEventSynchronize(stop);
float elapsed_time = 0;
cudaEventElapsedTime(&elapsed_time,start,stop);
printf("Time:%g ms\n",elapsed_time);
cudaDeviceSynchronize();
cudaMemcpyFromSymbol(b,d_z,sizeof(int)*10);
printf("x:%d \n",b[0]);
free(a);
free(b);
cudaFree(d_x);
}
