| Geant4 Cross Reference |
1 // Copyright (C) 2010, Guy Barrand. All rights
2 // See the file tools.license for terms.
3
4 #ifndef toolx_mpi_world
5 #define toolx_mpi_world
6
7 // code to wrap MPI global things by having an
8
9 #include <tools/impi_world>
10
11 #include <mpi.h>
12
13 #ifdef TOOLS_MEM
14 #include <tools/mem>
15 #endif
16
17 namespace toolx {
18 namespace mpi {
19
20 class world : public virtual tools::impi_world
21 typedef tools::impi_world parent;
22 #ifdef TOOLS_MEM
23 protected:
24 static const std::string& s_class() {
25 static const std::string s_v("toolx::mpi::
26 return s_v;
27 }
28 #endif
29 public:
30 virtual bool init(int* a_argc,char*** a_argv
31 if(::MPI_Init(a_argc,a_argv)!=MPI_SUCCESS)
32 return true;
33 }
34 virtual bool rank(int& a_rank) const {
35 if(::MPI_Comm_rank(MPI_COMM_WORLD,&a_rank)
36 return true;
37 }
38 virtual bool size(int& a_size) const {
39 if(::MPI_Comm_size(MPI_COMM_WORLD,&a_size)
40 return true;
41 }
42 virtual bool processor_name(std::string& a_s
43 char name[MPI_MAX_PROCESSOR_NAME];
44 int lname;
45 if(::MPI_Get_processor_name(name,&lname)!=
46 a_s = std::string(name);
47 return true;
48 }
49 public:
50 world() {
51 #ifdef TOOLS_MEM
52 tools::mem::increment(s_class().c_str());
53 #endif
54 }
55 virtual ~world(){
56 #ifdef TOOLS_MEM
57 tools::mem::decrement(s_class().c_str());
58 #endif
59 }
60 protected:
61 world(const world& a_from):parent(a_from) {
62 #ifdef TOOLS_MEM
63 tools::mem::increment(s_class().c_str());
64 #endif
65 }
66 world& operator=(const world&) {return *this
67 };
68
69 }}
70
71 #endif