Last change
on this file since 2323 was
1759,
checked in by ymipsl, 5 years ago
|
Add some tools for MPI communication
- find MPI_SIZE_T type equivalent to size_t integer
- Add MPI_Bcast for string
YM
|
-
Property svn:eol-style set to
native
-
Property svn:executable set to
*
|
File size:
622 bytes
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Line | |
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1 | #include "mpi.hpp" |
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2 | #include "mpi_tools.hpp" |
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3 | |
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4 | |
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5 | #include <string> |
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6 | |
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7 | namespace xios |
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8 | { |
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9 | int MPI_Bcast_string(std::string& str, int root, MPI_Comm comm) |
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10 | { |
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11 | int commRank ; |
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12 | int ret ; |
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13 | MPI_Comm_rank(comm,&commRank) ; |
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14 | int strSize ; |
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15 | if (commRank==root) strSize=str.size() ; |
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16 | MPI_Bcast(&strSize,1,MPI_INT,root,comm) ; |
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17 | |
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18 | if (commRank==root) ret=MPI_Bcast((char*)str.data(), strSize, MPI_CHAR, root, comm) ; |
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19 | else |
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20 | { |
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21 | char* tmp=new char[strSize] ; |
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22 | ret=MPI_Bcast(tmp, strSize, MPI_CHAR, root, comm) ; |
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23 | str=std::string(tmp,strSize) ; |
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24 | delete [] tmp ; |
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25 | } |
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26 | return ret ; |
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27 | } |
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28 | } |
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