我正在通过修改“/apps/boost_1_56_0/libs/graph/test”中的代码“serialize.cpp”并尝试通过 boost MPI 通过网络发送一个 boost graph 对象来进行测试。
它编译得很好,但是当我使用 mpirun 运行可执行文件时,我得到了这个错误:
terminate called after throwing an instance of 'boost::archive::archive_exception'
what(): input stream error.
我想我正在读取一个空缓冲区,但不确定如何修复它。
#include <boost/config.hpp>
#include <iostream>
#include <fstream>
#include <string>
#include <boost/tuple/tuple.hpp>
#include <boost/graph/adjacency_list.hpp>
#include <boost/graph/visitors.hpp>
#include <boost/graph/breadth_first_search.hpp>
#include <map>
#include <boost/graph/adj_list_serialize.hpp>
#include <boost/archive/text_iarchive.hpp>
#include <boost/archive/text_oarchive.hpp>
#include <vector>
#include <boost/mpi/environment.hpp>
#include <boost/mpi/communicator.hpp>
std::stringstream ss;
struct vertex_properties {
std::string name;
template<class Archive>
void serialize(Archive & ar, const unsigned int /*version*/) {
ar & BOOST_SERIALIZATION_NVP(name);
}
};
struct edge_properties {
std::string name;
template<class Archive>
void serialize(Archive & ar, const unsigned int /*version*/) {
ar & BOOST_SERIALIZATION_NVP(name);
}
};
using namespace boost;
typedef adjacency_list<vecS, vecS, undirectedS,
vertex_properties, edge_properties> Graph;
typedef graph_traits<Graph>::vertex_descriptor vd_type;
typedef adjacency_list<vecS, vecS, undirectedS,
vertex_properties> Graph_no_edge_property;
int main()
{
mpi::environment env;
mpi::communicator world;
using namespace std;
if (world.rank() == 0) {
archive::text_oarchive oa(ss);
Graph g;
vertex_properties vp;
vp.name = "A";
vd_type A = add_vertex( vp, g );
vp.name = "B";
vd_type B = add_vertex( vp, g );
edge_properties ep;
ep.name = "a";
add_edge( A, B, ep, g);
oa << BOOST_SERIALIZATION_NVP(g);
world.send(1, 0, g);
} else if (world.rank() == 1) {
archive::text_iarchive ia(ss);
Graph g;
ia >> BOOST_SERIALIZATION_NVP(g);
if (!( g[*(vertices( g ).first)].name == "A" )) return -1;
world.recv(0, 0, g);
cout << "number of vertices received from graph g is " <<
num_vertices(g) << " edges is " << num_edges(g) << endl;
}
return 0;
} ^
最佳答案
也许这只是部分地解决了问题,但这里是:
Q. @sehe I use the bundled properties, they are not automatically serialized from what I have tested. – user3658306 1 hour ago
A. 不正确:
#include <boost/graph/adjacency_list.hpp>
#include <boost/graph/random.hpp>
#include <random>
static std::mt19937 prng { std::random_device{} () };
std::string random_word(int len=7) {
std::string s;
static std::uniform_int_distribution<> chars('a', 'z');
generate_n(back_inserter(s), len, bind(chars, ref(prng)));
return s;
}
struct Vertex {
std::string name = random_word();
template <typename Ar> void serialize(Ar& ar, unsigned) { ar & BOOST_SERIALIZATION_NVP(name); }
};
struct Edge {
std::string label = random_word();
template <typename Ar> void serialize(Ar& ar, unsigned) { ar & BOOST_SERIALIZATION_NVP(label); }
};
using namespace boost;
using Graph = adjacency_list<vecS, vecS, undirectedS, Vertex, Edge>;
#include <boost/graph/adj_list_serialize.hpp>
#include <boost/archive/xml_oarchive.hpp>
#include <iostream>
int main() {
Graph g;
generate_random_graph(g, 20, 40, prng);
boost::archive::xml_oarchive oa(std::cout);
oa << BOOST_SERIALIZATION_NVP(g);
}
以 XML 形式完成属性打印随机图,例如:
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE boost_serialization>
<boost_serialization signature="serialization::archive" version="12">
<g class_id="0" tracking_level="0" version="0">
<V>20</V>
<E>40</E>
<vertex_property class_id="1" tracking_level="0" version="0">
<name>pjfpjir</name>
</vertex_property>
<vertex_property>
<name>yimnobr</name>
</vertex_property>
<vertex_property>
<name>wshvrpl</name>
</vertex_property>
<vertex_property>
<name>lckoymw</name>
</vertex_property>
<vertex_property>
<name>bqovgzi</name>
</vertex_property>
<vertex_property>
<name>thxvqzm</name>
</vertex_property>
<vertex_property>
<name>aczdbtl</name>
</vertex_property>
<vertex_property>
<name>mqwayyk</name>
</vertex_property>
<vertex_property>
<name>xarqhaq</name>
</vertex_property>
<vertex_property>
<name>qsismjs</name>
</vertex_property>
<vertex_property>
<name>makkpqi</name>
</vertex_property>
<vertex_property>
<name>ekklaes</name>
</vertex_property>
<vertex_property>
<name>cxyzrhz</name>
</vertex_property>
<vertex_property>
<name>xetrxco</name>
</vertex_property>
<vertex_property>
<name>flwqnns</name>
</vertex_property>
<vertex_property>
<name>dlzoglu</name>
</vertex_property>
<vertex_property>
<name>viumusv</name>
</vertex_property>
<vertex_property>
<name>bktdobe</name>
</vertex_property>
<vertex_property>
<name>pxsoxdj</name>
</vertex_property>
<vertex_property>
<name>cldlbtp</name>
</vertex_property>
<u>15</u>
<v>4</v>
<edge_property class_id="2" tracking_level="0" version="0">
<label>zssnhpu</label>
</edge_property>
<u>17</u>
<v>0</v>
<edge_property>
<label>pzivbjs</label>
</edge_property>
<u>1</u>
<v>0</v>
<edge_property>
<label>ueeoqft</label>
</edge_property>
<u>9</u>
<v>7</v>
<edge_property>
<label>jdidntq</label>
</edge_property>
<u>8</u>
<v>4</v>
<edge_property>
<label>tfpvuqx</label>
</edge_property>
<u>2</u>
<v>10</v>
<edge_property>
<label>ccycjyf</label>
</edge_property>
<u>19</u>
<v>12</v>
<edge_property>
<label>bcuuatp</label>
</edge_property>
<u>5</u>
<v>12</v>
<edge_property>
<label>okezxdc</label>
</edge_property>
<u>0</u>
<v>5</v>
<edge_property>
<label>qxugnbw</label>
</edge_property>
<u>5</u>
<v>1</v>
<edge_property>
<label>sxerbxx</label>
</edge_property>
<u>1</u>
<v>4</v>
<edge_property>
<label>diziick</label>
</edge_property>
<u>19</u>
<v>7</v>
<edge_property>
<label>lufsvfb</label>
</edge_property>
<u>19</u>
<v>3</v>
<edge_property>
<label>siwrshv</label>
</edge_property>
<u>13</u>
<v>3</v>
<edge_property>
<label>rtiihnd</label>
</edge_property>
<u>18</u>
<v>17</v>
<edge_property>
<label>nllpszz</label>
</edge_property>
<u>15</u>
<v>7</v>
<edge_property>
<label>qbvxdtx</label>
</edge_property>
<u>12</u>
<v>14</v>
<edge_property>
<label>zyclorw</label>
</edge_property>
<u>10</u>
<v>3</v>
<edge_property>
<label>xdjhxht</label>
</edge_property>
<u>10</u>
<v>0</v>
<edge_property>
<label>hwanuvt</label>
</edge_property>
<u>5</u>
<v>12</v>
<edge_property>
<label>nzrwayu</label>
</edge_property>
<u>4</u>
<v>12</v>
<edge_property>
<label>nselbtl</label>
</edge_property>
<u>7</u>
<v>8</v>
<edge_property>
<label>eflgiho</label>
</edge_property>
<u>19</u>
<v>6</v>
<edge_property>
<label>kadepsb</label>
</edge_property>
<u>9</u>
<v>4</v>
<edge_property>
<label>xfpiijv</label>
</edge_property>
<u>15</u>
<v>19</v>
<edge_property>
<label>aooxlov</label>
</edge_property>
<u>8</u>
<v>1</v>
<edge_property>
<label>kaemqfa</label>
</edge_property>
<u>14</u>
<v>12</v>
<edge_property>
<label>fxkcjma</label>
</edge_property>
<u>10</u>
<v>2</v>
<edge_property>
<label>urewqkq</label>
</edge_property>
<u>0</u>
<v>18</v>
<edge_property>
<label>vdskttr</label>
</edge_property>
<u>6</u>
<v>9</v>
<edge_property>
<label>ejlncwe</label>
</edge_property>
<u>2</u>
<v>3</v>
<edge_property>
<label>upsbqeq</label>
</edge_property>
<u>1</u>
<v>9</v>
<edge_property>
<label>hdsmlsg</label>
</edge_property>
<u>17</u>
<v>2</v>
<edge_property>
<label>okiovwn</label>
</edge_property>
<u>10</u>
<v>16</v>
<edge_property>
<label>pbutvzu</label>
</edge_property>
<u>5</u>
<v>4</v>
<edge_property>
<label>szuhnuf</label>
</edge_property>
<u>10</u>
<v>11</v>
<edge_property>
<label>sztnmxa</label>
</edge_property>
<u>7</u>
<v>16</v>
<edge_property>
<label>pxknohn</label>
</edge_property>
<u>1</u>
<v>2</v>
<edge_property>
<label>ezmuunb</label>
</edge_property>
<u>6</u>
<v>16</v>
<edge_property>
<label>jtzsxfv</label>
</edge_property>
<u>16</u>
<v>15</v>
<edge_property>
<label>ijnaybi</label>
</edge_property>
<graph_property class_id="3" tracking_level="0" version="0"></graph_property>
</g>
</boost_serialization>
下一步
现在我们已经揭穿了其中一个假设,也许我们可以弄清楚应该如何使用 MPI 发送/接收(提示:可能不使用手动序列化)
关于c++ - 通过 boost :MPI got error 发送一个简单的 boost 图形对象,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32641226/