Warning, /include/Geant4/toolx/mpi/world is written in an unsupported language. File is not indexed.
0001 // Copyright (C) 2010, Guy Barrand. All rights reserved.
0002 // See the file tools.license for terms.
0003
0004 #ifndef toolx_mpi_world
0005 #define toolx_mpi_world
0006
0007 // code to wrap MPI global things by having an interface (toolx::mpi).
0008
0009 #include <tools/impi_world>
0010
0011 #include <mpi.h>
0012
0013 namespace toolx {
0014 namespace mpi {
0015
0016 class world : public virtual tools::impi_world {
0017 typedef tools::impi_world parent;
0018 public:
0019 virtual bool init(int* a_argc,char*** a_argv) {
0020 if(::MPI_Init(a_argc,a_argv)!=MPI_SUCCESS) return false;
0021 return true;
0022 }
0023 virtual bool rank(int& a_rank) const {
0024 if(::MPI_Comm_rank(MPI_COMM_WORLD,&a_rank)!=MPI_SUCCESS) {a_rank=-1;return false;}
0025 return true;
0026 }
0027 virtual bool size(int& a_size) const {
0028 if(::MPI_Comm_size(MPI_COMM_WORLD,&a_size)!=MPI_SUCCESS) {a_size=0;return false;}
0029 return true;
0030 }
0031 virtual bool processor_name(std::string& a_s) const {
0032 char name[MPI_MAX_PROCESSOR_NAME];
0033 int lname;
0034 if(::MPI_Get_processor_name(name,&lname)!=MPI_SUCCESS) {a_s.clear();return false;}
0035 a_s = std::string(name);
0036 return true;
0037 }
0038 public:
0039 world() {
0040 }
0041 virtual ~world(){
0042 }
0043 protected:
0044 world(const world& a_from):parent(a_from) {
0045 }
0046 world& operator=(const world&) {return *this;}
0047 };
0048
0049 }}
0050
0051 #endif
