Using cusp in a Visual Studio C ++ project

Question

I am using cusp v.0.4.0, cuda V5.5 on VS2012 Ultimate. I created a CUDA project using the new project wizard and added the cusp path to it with the project properties \ VC ++ Directories \ Include Directories . I wrote my code in the * .cu file generated by VS2012, the project was compiled and built successfully, but when I started, I got R6010 . I solved this problem by changing the default properties of the project \ CUDA C / C ++ \ Device \ Code Generation from compute_10, sm_10 to compute_30, sm_30 >, which is my version of sm. Everything worked well.

Now I want to use the same code in a C ++ project. When I added it to a new C ++ project and added the cusp path to VC ++ Include Directories , the project assembly failed with numerous syntax errors in several files:

Error 5 of error C2144: syntax error: "void" must precede ';' c: \ users \ administrator \ downloads \ android \ cusplibrary-master \ cusplibrary-master \ cusp \ detail \ device \ spmv \ coo_flat.h 164

22 IntelliSense: expected a ';' c: \ Users \ Administrator \ Downloads \ Android \ cusplibrary-master \ cusplibrary-master \ cusp \ detail \ device \ spmv \ coo_flat.h 272

...

There are 108 more such errors. If these are syntax errors, why none of them appeared in my CUDA solution? How can I successfully create my code in a C ++ project?

#include <cuda.h> #include <cuda_runtime.h> #include <device_launch_parameters.h> #include <cusp/krylov/cg.h> #include <cusp/csr_matrix.h> #include <cusp/hyb_matrix.h> #include <cusp/gallery/poisson.h> #include <cusp/io/matrix_market.h> #include <cusp\print.h> #include <fstream> #include <conio.h> #include <math.h> #include <iostream> #include <windows.h> using namespace std; int main() { int N = 10000; int nnz = 1005070; DWORD dw1 = GetTickCount(); cusp::csr_matrix<int,double,cusp::device_memory> A(N,N,nnz); DWORD dw2 = GetTickCount(); double dw3 = dw2 - dw1; cout << "alocating A matrix time : " << dw3 << endl; ifstream rowOffseFile; ifstream colIndexFile; ifstream valuesFile; ifstream ansFile; rowOffseFile.open("C:\\Users\\Administrator\\Documents\\MATLAB\\10000_0.01_RO.txt"); int *rowOffset = NULL; rowOffset = (int *)malloc((N+1)*sizeof(int)); for (int i = 0; i < N+1; i++) { rowOffset[i] = 0; } int i =0; if (rowOffseFile.is_open()) { while (!rowOffseFile.eof()) { rowOffseFile >> rowOffset[i]; i+=1; } } rowOffseFile.close(); DWORD dw10 = GetTickCount(); for (int i = 0; i < (N+1); i++) { A.row_offsets[i] = rowOffset[i]; } DWORD dw11 = GetTickCount(); double dw12 =dw11 - dw10; /////////////////////////////////////////////////////////////////////////////////// colIndexFile.open("C:\\Users\\Administrator\\Documents\\MATLAB\\10000_0.01_CI.txt"); int *colIndex = NULL; colIndex = (int *)malloc((nnz)*sizeof(int)); for (int i = 0; i < nnz; i++) { colIndex[i] = 0; } i =0; if (colIndexFile.is_open()) { while (!colIndexFile.eof()) { colIndexFile >> colIndex[i]; //int temp = (int)output; //cout<< colIndex[i] << endl; i+=1; } } colIndexFile.close(); DWORD ex1 = GetTickCount(); for (int i = 0; i < nnz; i++) { A.column_indices[i] = colIndex[i]; } DWORD ex2 = GetTickCount(); double t = ex2-ex1; ///////////////////////////////////////////////////////////// valuesFile.open("C:\\Users\\Administrator\\Documents\\MATLAB\\10000_0.01_V.txt"); double *values = NULL; values = (double *)malloc((nnz)*sizeof(double)); for (int i = 0; i < nnz; i++) { values[i] = 0; } i =0; if (valuesFile.is_open()) { while (!valuesFile.eof()) { valuesFile >> values[i]; //int temp = (int)output; //cout<< colIndex[i] << endl; i+=1; } } valuesFile.close(); DWORD ex3 = GetTickCount(); for (int i = 0; i < nnz; i++) { A.values[i] = values[i]; } DWORD ex4 = GetTickCount(); t = t+ex4-ex3+dw12; cout << "time spent on initializing: " << t <<endl; DWORD dw7 = GetTickCount(); cusp::array1d<double,cusp::device_memory> X(N,0.); cusp::array1d<double,cusp::device_memory> B(N,1.); DWORD dw8 = GetTickCount(); double dw9 = dw8-dw7; cout << "time spent on allocating X and B :" << dw9 << endl; DWORD dw4 = GetTickCount(); cusp::krylov::cg(A,X,B); DWORD dw5 = GetTickCount(); double dw6 = dw5 - dw4; std::cout << "time spenton solving : " << dw6 << std::endl; //cusp::print(X); ansFile.open("C:\\Users\\Administrator\\Documents\\MATLAB\\10000_0.01_X.txt"); double *ans = NULL; ans = (double *)malloc((N)*sizeof(double)); for (int i = 0; i < N; i++) { ans[i] = 0; } i =0; if (ansFile.is_open()) { while (!ansFile.eof()) { ansFile >> ans[i]; //int temp = (int)output; //cout<< rowOffset[i] << endl; i+=1; } } ansFile.close(); double tol = 0; double temp = 0; for (int i = 0; i < N; i++) { temp = abs(X[i] - ans[i]); if (temp>tol) { tol = temp; } } cout << "max tol is :" << tol << endl; getch(); return 0; } 

Answer 1

"Now I want to use this piece of code in a written C ++ project, but when I added the same code to a new C ++ project ..."

It probably won't work. If this code is in .cpp in a C ++ project, it will not work.

cusp is a template library that is built on top of a vertex that is built on top of CUDA, so cusp codes must be compiled using nvcc , i.e. it must be in a CUDA project in VS, and not in a regular C ++ project,

So, get back to using the CUDA project in VS for your return codes.