Boost.MPI給出了建築x86_64的

我試圖運行基本"Hello, World!" example未定義的符號：Boost.MPI給出了建築x86_64的

#include <boost/mpi/environment.hpp> 
#include <boost/mpi/communicator.hpp> 
#include <iostream> 
namespace mpi = boost::mpi; 

int main() 
{ 
    mpi::environment env; 
    mpi::communicator world; 
    std::cout << "I am process " << world.rank() << " of " << world.size() 
      << "." << std::endl; 
    return 0; 
}

我已經試過無數變種運行此程序：

mpic++ -I /usr/local/include/ test.cpp -o test -lboost_system

也：

mpic++ -I /usr/local/include/boost test.cpp -o test -lboost_system

並使用mpicc和clang++作爲替代。每個組合給出瞭如下錯誤：

Undefined symbols for architecture x86_64: 
    "boost::mpi::environment::environment(bool)", referenced from: 
     _main in test-b0215f.o 
    "boost::mpi::environment::~environment()", referenced from: 
     _main in test-b0215f.o 
    "boost::mpi::communicator::communicator()", referenced from: 
     _main in test-b0215f.o 
    "boost::mpi::communicator::rank() const", referenced from: 
     _main in test-b0215f.o 
    "boost::mpi::communicator::size() const", referenced from: 
     _main in test-b0215f.o 
ld: symbol(s) not found for architecture x86_64 
clang: error: linker command failed with exit code 1 (use -v to see invocation)

家釀說，雙方MPICH2和boost1.63.0安裝。我可以通過編譯，然後運行this program:

// required MPI include file 
    #include "mpi.h" 
    #include <stdio.h> 

    int main(int argc, char *argv[]) { 
    int numtasks, rank, len, rc; 
    char hostname[MPI_MAX_PROCESSOR_NAME]; 

    // initialize MPI 
    MPI_Init(&argc,&argv); 

    // get number of tasks 
    MPI_Comm_size(MPI_COMM_WORLD,&numtasks); 

    // get my rank 
    MPI_Comm_rank(MPI_COMM_WORLD,&rank); 

    // this one is obvious 
    MPI_Get_processor_name(hostname, &len); 
    printf ("Number of tasks= %d My rank= %d Running on %s\n", numtasks,rank,hostname); 


     // do some work with message passing 


    // done with MPI 
    MPI_Finalize(); 
    }

將會產生正確的輸出確認mpic++運行。

我也驗證了（至少部分）升壓被編譯併成功運行安裝Boost "Hello, World!"

// 
// timer.cpp 
// ~~~~~~~~~ 
// 
// Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot com) 
// 
// Distributed under the Boost Software License, Version 1.0. (See accompanying 
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 
// 

#include <iostream> 
#include <boost/asio.hpp> 
#include <boost/date_time/posix_time/posix_time.hpp> 

int main() 
{ 
    boost::asio::io_service io; 

    boost::asio::deadline_timer t(io, boost::posix_time::seconds(5)); 
    t.wait(); 

    std::cout << "Hello, world!" << std::endl; 

    return 0; 
}

有：

clang++ -I /usr/local/include/ timer.cpp -o timer -lboost_system

我怎樣才能獲得Boost.MPI例子跑步？

來源

2017-02-25 Dair

當你從boost中得到鏈接器錯誤時，你通常忘了鏈接到boost庫。

還有一個boost_mpi庫，所以你應該

clang++ -I /usr/local/include/ timer.cpp -o timer -lboost_system -lboost_mpi

注意，你需要一個升壓版本與MPI支持編譯。

普遍認爲http://www.boost.org/doc/libs/1_58_0/doc/html/mpi/getting_started.html
具體用自制軟件可以檢查How to build boost with mpi support on homebrew?

來源

2017-02-25 21:21:19 overseas

似乎我的計算機無法找到它'LD：庫找不到-lboost_mpi'。也許Homebrew不會默認安裝它或者什麼？ – Dair

因此，有一個boost-mpi的釀造公式。我會試試看看它是否有效。 – Dair

是的，似乎是這樣，檢查http://stackoverflow.com/questions/13143409/how-to-build-boost-with-mpi-support-on-homebrew – overseas

Boost.MPI給出了建築x86_64的

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