请原谅我的菜鸟。我们的研究小组最近购买了一台装有 2 个 NVIDIA Tesla 设备的服务器,我负责设置它。
服务器单元正在运行 Rocks 6.0。
所以我根据这个指令安装从 NVIDIA 下载的 CUDA SDK:http: //docs.nvidia.com/cuda/cuda-getting-started-guide-for-linux/index.html
我尝试编译 NVIDIA 随 SDK 提供的示例代码,但遇到了一堆错误。我想也许 Makefile 可能没有配置,所以我在 Stack Overflow 上看了一圈,发现了这段测试代码:
using namespace std;
#include <iostream>
#include <string.h>
#include <unistd.h>
int main (int argc, const char *argv[]) {
//our message
const char *message = "hello world!";
size_t size = strlen(message)+1;
//delcare and allocate a buffer on the device
char *d_buffer;
if (cudaMalloc(&d_buffer,size) != cudaSuccess){
cerr << cudaGetErrorString(cudaGetLastError()) << endl;
exit(1);
}
//copy our message to the device buffer
if (cudaMemcpy(d_buffer,message,size,cudaMemcpyHostToDevice)
!= cudaSuccess){
cerr << cudaGetErrorString(cudaGetLastError()) << endl;
exit(1);
}
//declare and allocate a buffer on the host
char *h_buffer = (char*)malloc(size);
if (h_buffer == 0){
cerr << "malloc failed" << endl;
exit(1);
}
//copy the device buffer back to the host
if (cudaMemcpy(h_buffer,d_buffer,size,cudaMemcpyDeviceToHost)
!= cudaSuccess) {
cerr << cudaGetErrorString(cudaGetLastError()) << endl;
exit(1);
}
cout << h_buffer << endl;
cudaFree(d_buffer);
free(h_buffer);
}
所以按照说明,我编译了代码:
nvcc -o hello_cuda hello_cuda.cu
并得到以下错误:
In file included from /usr/local/cuda-5.0/bin/../include/cuda_runtime.h:76,
from <command-line>:0:
/usr/local/cuda-5.0/bin/../include/common_functions.h:76:15: error: new: No such file or directory
In file included from /usr/local/cuda-5.0/bin/../include/common_functions.h:162,
from /usr/local/cuda-5.0/bin/../include/cuda_runtime.h:76,
from <command-line>:0:
/usr/local/cuda-5.0/bin/../include/math_functions.h:7555:17: error: cmath: No such file or directory
/usr/local/cuda-5.0/bin/../include/math_functions.h:7556:19: error: cstdlib: No such file or directory
hello_cuda.cu:11:20: error: iostream: No such file or directory
这些基本上与我在编译示例代码时收到的错误消息相同。我的猜测是编译器配置不正确,因为 iostream 应该只是 C 的标准库。
有什么想法或指针可以解决这个问题吗?这似乎是一个非常简单的问题,但我已经为此烦恼了好几天!