编译Cuda时出错-预期的主要表达式 [英] Error compiling Cuda - expected primary-expression
问题描述
这个程序似乎很好,但是我仍然会犯错,有些建议吗?
this program seems be fine but I still getting an erro, some suggestion?
程序:
#include "dot.h"
#include <cuda.h>
#include <cuda_runtime.h>
#include <stdio.h>
int main(int argc, char** argv)
{
int *a, *b, *c;
int *dev_a, *dev_b, *dev_c;
int size = N * sizeof(int);
cudaMalloc((void**)&dev_a, size);
cudaMalloc((void**)&dev_b, size);
cudaMalloc((void**)&dev_c, sizeof(int));
a = (int *)malloc (size);
b = (int *)malloc (size);
c = (int *)malloc (sizeof(int));
random_ints(a, N);
random_ints(b, N);
cudaMemcpy(dev_a, a, size, cudaMemcpyHostToDevice);
cudaMemcpy(dev_b, b, size, cudaMemcpyHostToDevice);
int res = N/THREADS_PER_BLOCK;
dot<<< res, THREADS_PER_BLOCK >>> (dev_a, dev_b, dev_c);
//helloWorld<<< dimGrid, dimBlock >>>(d_str);
cudaMemcpy (c, dev_c, sizeof(int), cudaMemcpyDeviceToHost);
free(a); free(b); free(c);
cudaFree(dev_a);
cudaFree(dev_b);
cudaFree(dev_c);
return 0;
}
错误:
DotProductCuda.cpp:27:错误:'<'令牌
DotProductCuda.cpp之前的预期主表达式:27:错误:'>'
令牌
DotProductCuda.cpp:27: error: expected primary-expression before
'<'
token
DotProductCuda.cpp:27: error: expected primary-expression before'>'
token
推荐答案
<<< >>>
用于调用内核的语法不是标准的C或C ++。这些调用必须在NVCC编译器编译的文件中。这些文件通常以.cu扩展名命名。其他对CUDA的API调用,例如 cudaMalloc
可以在常规.c或.cpp文件中。
The <<< >>>
syntax for calling a kernel is not standard C or C++. Those calls must be in a file compiled by the NVCC compiler. Those files are normally named with a .cu extension. Other API calls to CUDA such as cudaMalloc
can be in regular .c or .cpp files.
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