我想要開始使用C++ Amp函數庫。我正在關注這個MSDN Magazine guide,但是我在這個擴展庫(不是我的代碼)中的代碼部分出現錯誤。Amp函數庫錯誤
protected:
_Accelerator_view_impl_ptr _M_accelerator_view;
_Accelerator_view_impl_ptr _M_access_on_accelerator_view;
void * _M_data_ptr;
void * _M_host_ptr;
size_t _M_elem_size;
size_t _M_num_elems;
bool _M_owns_data;
bool _M_is_staging;
誤差
3智能感知:非法參數類型 「無效*」 爲安培限制 功能 「併發::詳細信息:: _ Texture_descriptor :: _ Texture_descriptor(併發::詳細信息: :_Texture * _Texture_ptr)restrict(cpu,amp)「(在」c:\ program files(x86)\ microsoft visual studio 11.0 \ vc \ include \ amprt.h「的538行聲明)c:\ Program Files x86)\ Microsoft Visual Studio 11.0 \ VC \ include \ amprt.h 1466 16
我已經複製到目前爲止
#include <amp.h> // C++ AMP header file
#include <iostream> // For std::cout etc
using namespace concurrency; // Save some typing :)
using std::vector; // Ditto. Comes from <vector> brought in by amp.h
int main()
{
do_it();
std::cout << "Hit any key to exit..." << std::endl;
std::cin.get();
}
void do_it()
{
// Rows and columns for matrix
const int M = 1024;
const int N = 1024;
// Create storage for a matrix of above size
vector<int> vA(M * N);
vector<int> vB(M * N);
// Populate matrix objects
int i = 0;
std::generate(vA.begin(), vA.end(), [&i](){return i++;});
std::generate(vB.begin(), vB.end(), [&i](){return i--;});
// Output storage for matrix calculation
vector<int> vC(M * N);
perform_calculation(vA, vB, vC, M, N);
}
void perform_calculation(
vector<int>& vA, vector<int>& vB, vector<int>& vC, int M, int N)
{
for (int i = 0; i < M; i++)
{
for (int j = 0; j < N; j++)
{
vC[i * N + j] = vA[i * N + j] + vB[i * N + j];
}
}
}
構建輸出
------ Build started: Project: Project1, Configuration: Debug Win32------
Source.cpp
LINK : padding exhausted: performing full link
Project1.vcxproj ->C:\Development\Project1\Debug\Project1.exe
CodeContracts:
Project1: Run static contract analysis.
CodeContracts: Project1: Cannot load assembly 'C:\Development\Project1\Project1\Debub\Decl\Project1.exe'
CodeContracts: Project1: Total methods analyzed 0
CodeContracts:Project1: Total time 135ms. 0ms/method
CodeContracts: Checked 0 assertions.
CodeContracts: Project1: Static contract analysis done.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
這是一個智能感知錯誤 - 當你真正嘗試_build_,你得到了什麼錯誤(如果有的話)? – ildjarn 2012-04-05 18:07:08
@ildjarn我得到一個錯誤,說do_it()沒有定義 – 2012-04-05 18:11:04
這是因爲你在使用它之後聲明'do_it'。移動'main'前面的定義或者在'main'前面添加一個前向聲明 - 這與C++ 11或AMP沒有任何關係,它是非常基本的C++規則。 – ildjarn 2012-04-05 18:12:17