[569] | 1 | /*! |
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| 2 | \file client_server_mapping.hpp |
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| 3 | \author Ha NGUYEN |
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| 4 | \since 27 Feb 2015 |
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| 5 | \date 09 Mars 2015 |
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| 6 | |
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| 7 | \brief Mapping between index client and server. |
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| 8 | Clients pre-calculate all information of server distribution. |
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| 9 | */ |
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| 10 | |
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[568] | 11 | #ifndef __XIOS_CLIENT_SERVER_MAPPING_DISTRIBUTED_HPP__ |
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| 12 | #define __XIOS_CLIENT_SERVER_MAPPING_DISTRIBUTED_HPP__ |
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| 13 | |
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| 14 | #include <client_server_mapping.hpp> |
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[591] | 15 | #include "xios_spl.hpp" |
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[568] | 16 | #include "array_new.hpp" |
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| 17 | #include "mpi.hpp" |
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[1542] | 18 | #include <unordered_map> |
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[721] | 19 | #include "client_client_dht_template.hpp" |
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[568] | 20 | |
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| 21 | namespace xios |
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| 22 | { |
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[569] | 23 | /*! |
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| 24 | \class CClientServerMappingDistributed |
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| 25 | This class computes index of data which are sent to server as well as index of data |
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| 26 | on server side with a distributed alogrithm. Each client has a piece of information about the distribution |
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| 27 | of servers. To find out all these info, first of all, all client join a discovering process in which each client |
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| 28 | announces the others about the info they have as well as demand others info they are lacked of. After this process, |
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| 29 | each client has enough info to decide to which client it need to send a demand for corresponding server of a global index. |
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| 30 | The alogrithm depends on hashed index. |
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| 31 | */ |
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[568] | 32 | class CClientServerMappingDistributed : public CClientServerMapping |
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| 33 | { |
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| 34 | public: |
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| 35 | /** Default constructor */ |
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[1542] | 36 | CClientServerMappingDistributed(const std::unordered_map<size_t,int>& globalIndexOfServer, |
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[835] | 37 | const MPI_Comm& clientIntraComm, |
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| 38 | bool isDataDistributed = true); |
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[568] | 39 | |
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[1336] | 40 | virtual void computeServerIndexMapping(const CArray<size_t,1>& globalIndexOnClientSendToServer, int nbServer); |
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[569] | 41 | |
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[568] | 42 | /** Default destructor */ |
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| 43 | virtual ~CClientServerMappingDistributed(); |
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| 44 | |
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| 45 | protected: |
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[721] | 46 | CClientClientDHTInt* ccDHT_; |
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[568] | 47 | }; |
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| 48 | |
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| 49 | } // namespace xios |
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| 50 | #endif // __XIOS_CLIENT_SERVER_MAPPING_DISTRIBUTED_HPP__ |
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