VS程序崩溃在调试，但不是释放模式？ [英] VS program crashes in debug but not release mode?

问题描述

我在VS 2012中运行以下程序来尝试Thrust函数find：

I am running the following program in VS 2012 to try out the Thrust function find:

#include "cuda_runtime.h"
#include "device_launch_parameters.h"
#include <thrust/find.h>
#include <thrust/device_vector.h>
#include <stdio.h>

int main() {
    thrust::device_vector<char> input(4);

    input[0] = 'a';
    input[1] = 'b';
    input[2] = 'c';
    input[3] = 'd';

    thrust::device_vector<char>::iterator iter;

    iter = thrust::find(input.begin(), input.end(), 'a');

    std::cout << "Index of a = " << iter - input.begin() << std::endl;

    return 0;
}

这是一个代码示例的修改版本，取自 http://docs.thrust.googlecode.com/hg/group__searching.html#ga99c7a59cef5b9f4cdbc70f37b2e221be

This is a modified version of a code example taken from http://docs.thrust.googlecode.com/hg/group__searching.html#ga99c7a59cef5b9f4cdbc70f37b2e221be

当我在Debug模式下运行时，我的程序崩溃，我得到错误 Debug Error！ ... R6010 - abort（）已被调用。但是，在发布模式下运行它只是得到我的预期输出 a = 0 的索引。

When I run this in Debug mode, my program crashes and I get the error Debug Error! ... R6010 - abort() has been called. However, running this in Release mode I just get my expected output Index of a = 0.

这可能会导致这种情况发生？

What might cause this to happen?

推荐答案

有几个类似的问题，例如此处

There are a few similar questions e.g. here

引用注释：Thrust已知在编译调试时无法正确编译和运行

To quote a comment : "Thrust is known to not compile and run correctly when built for debugging"

并且从 docs ：nvcc不支持设备调试Thrust代码。编译的Thrust函数（例如，nvcc -G， nvcc --device-debug 0等）可能会崩溃。

And from the docs: "nvcc does not support device debugging Thrust code. Thrust functions compiled with (e.g., nvcc -G, nvcc --device-debug 0, etc.) will likely crash."

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