mpich2 visual studio 2013 链接器错误

mpich2 visual studio 2013 linker error

我想以 C++ 方式使用 mpi,所以我有来自 mpich2 示例的 cxxpi.cxx 代码:

#include "mpi.h"
#include <iostream>
#include <math.h>

using namespace std;

double f(double);

double f(double a) {
    return (4.0 / (1.0 + a*a));
}

int main(int argc, char **argv) {
    int n, myid, numprocs, i;
    double PI25DT = 3.141592653589793238462643;
    double mypi, pi, h, sum, x;
    double startwtime = 0.0, endwtime;
    int  namelen;
    char processor_name[MPI_MAX_PROCESSOR_NAME];

    MPI::Init(argc, argv);
    numprocs = MPI::COMM_WORLD.Get_size();
    myid = MPI::COMM_WORLD.Get_rank();
    MPI::Get_processor_name(processor_name, namelen);

    cout << "Process " << myid << " of " << numprocs << " is on " <<
        processor_name << endl;

    n = 10000;          /* default # of rectangles */
    if (myid == 0)
        startwtime = MPI::Wtime();

    MPI::COMM_WORLD.Bcast(&n, 1, MPI_INT, 0);

    h = 1.0 / (double) n;
    sum = 0.0;
    /* A slightly better approach starts from large i and works back */
    for (i = myid + 1; i <= n; i += numprocs) {
        x = h * ((double) i - 0.5);
        sum += f(x);
    }
    mypi = h * sum;

    MPI::COMM_WORLD.Reduce(&mypi, &pi, 1, MPI_DOUBLE, MPI_SUM, 0);

    if (myid == 0) {
        endwtime = MPI::Wtime();
        cout << "pi is approximately " << pi << " Error is " <<
            fabs(pi - PI25DT) << endl;
        cout << "wall clock time = " << endwtime - startwtime << endl;
    }

    MPI::Finalize();
    return 0;
}

我设置了我的 VS2013 项目的属性:

  1. 属性 > VC++ 目录 > 包含目录 >(添加的路径)"C:\Program Files\MPICH2\include"
  2. 属性 > VC++ 目录 > 库目录 >(添加路径) "C:\Program Files\MPICH2\lib"
  3. 属性 > 链接器 > 输入 > 附加依赖项 >(添加的库)"mpi.lib"
  4. 属性 > 平台 >(设置为)活动(x64)

我遇到了未解决的引用 链接器错误。具有相同属性的 cpi.c 的代码编译没有问题。我认为问题出在链接器需要的库中,但我试图找到它们的组合,但并没有解决问题。 MPICH2 有这样的库:cxx.lib、fmpich2.lib、fmpich2g.lib、irlog2rlog.lib、mpe.lib、mpi.lib、rlog.lib、TraceInput.lib.如何让程序正常运行?

您需要再添加一个附加依赖项 - cxx.lib

此库包含所有必要的 c++ 绑定。

您可能会查看 MPICH2/examples/cxxpi.vcproj 以发现需要链接此库。