麻烦编译helloworld.cu

Question

在Ubuntu 10.10中编译这个hello world示例

这是来自CUDA的示例,第3章(没有提供编译指令>:@)

#include <iostream>

__global__ void kernel (void){


}

int main(void){

    kernel <<<1,1>>>();
        printf("Hellow World!\n");
    return 0;

}

我懂了:

$ nvcc -lcudart hello.cu hello.cu(11):错误:标识符"printf"未定义

在编译"/tmp/tmpxft_00007812_00000000-4_hello.cpp1.ii"时检测到1错误.

为什么？该代码应如何编译？

Answer 1

你需要包括stdio.hnot iostream(用于std::cout东西)printf(参见参考资料man 3 printf).我在这里找到了这本书的源代码.

chapter03/hello_world.cu 实际上是:

/*
 * Copyright 1993-2010 NVIDIA Corporation.  All rights reserved.
 *
 * NVIDIA Corporation and its licensors retain all intellectual property and 
 * proprietary rights in and to this software and related documentation. 
 * Any use, reproduction, disclosure, or distribution of this software 
 * and related documentation without an express license agreement from
 * NVIDIA Corporation is strictly prohibited.
 *
 * Please refer to the applicable NVIDIA end user license agreement (EULA) 
 * associated with this source code for terms and conditions that govern 
 * your use of this NVIDIA software.
 * 
 */


#include "../common/book.h"

int main( void ) {
    printf( "Hello, World!\n" );
    return 0;
}

../common/book.h包括哪里stdio.h.

该README.txt文件详细说明了如何编译示例:

The vast majority of these code examples can be compiled quite easily by using 
NVIDIA's CUDA compiler driver, nvcc. To compile a typical example, say 
"example.cu," you will simply need to execute:

> nvcc example.cu