Last change
on this file since 2380 was
1757,
checked in by ymipsl, 5 years ago
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Implement one sided communication in client/server protocol to avoid dead-lock when some buffer are full.
YM
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-
Property copyright set to
Software name : XIOS (Xml I/O Server) http://forge.ipsl.jussieu.fr/ioserver Creation date : January 2009 Licence : CeCCIL version2 see license file in root directory : Licence_CeCILL_V2-en.txt or http://www.cecill.info/licences/Licence_CeCILL_V2-en.html Holder : CEA/LSCE (Laboratoire des Sciences du CLimat et de l'Environnement) CNRS/IPSL (Institut Pierre Simon Laplace) Project Manager : Yann Meurdesoif yann.meurdesoif@cea.fr
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File size:
1.5 KB
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1 | #ifndef __BUFFER_CLIENT_HPP__ |
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2 | #define __BUFFER_CLIENT_HPP__ |
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3 | |
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4 | #include "xios_spl.hpp" |
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5 | #include "buffer_out.hpp" |
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6 | #include "mpi.hpp" |
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7 | #include "cxios.hpp" |
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8 | |
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9 | namespace xios |
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10 | { |
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11 | class CClientBuffer |
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12 | { |
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13 | public: |
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14 | static size_t maxRequestSize; |
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15 | |
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16 | CClientBuffer(MPI_Comm intercomm, vector<MPI_Win>& windows, int clientRank, int serverRank, StdSize bufferSize, StdSize estimatedMaxEventSize); |
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17 | ~CClientBuffer(); |
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18 | // void createWindows(MPI_Comm oneSidedComm) ; |
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19 | void freeWindows(void) ; |
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20 | void lockBuffer(void) ; |
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21 | void unlockBuffer(void) ; |
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22 | |
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23 | bool isBufferFree(StdSize size); |
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24 | CBufferOut* getBuffer(size_t timeLine, StdSize size); |
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25 | bool checkBuffer(bool send=false); |
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26 | bool hasPendingRequest(void); |
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27 | StdSize remain(void); |
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28 | MPI_Aint getWinAddress(int numWindows) ; |
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29 | void infoBuffer(void) ; |
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30 | bool isNotifiedFinalized(void) ; |
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31 | private: |
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32 | char* buffer[2]; |
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33 | char* bufferHeader[2]; |
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34 | size_t* firstTimeLine[2] ; |
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35 | size_t* bufferCount[2] ; |
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36 | size_t* control[2] ; |
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37 | size_t* finalize[2] ; |
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38 | bool winState[2] ; |
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39 | int current; |
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40 | |
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41 | StdSize count; |
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42 | StdSize maxEventSize; |
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43 | const StdSize bufferSize; |
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44 | const StdSize estimatedMaxEventSize; |
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45 | |
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46 | |
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47 | const int serverRank; |
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48 | const int clientRank_; |
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49 | bool pending; |
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50 | |
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51 | MPI_Request request; |
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52 | |
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53 | CBufferOut* retBuffer; |
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54 | const MPI_Comm interComm; |
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55 | std::vector<MPI_Win> windows_ ; |
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56 | bool hasWindows ; |
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57 | static const int headerSize=4*sizeof(size_t); |
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58 | }; |
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59 | } |
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60 | #endif |
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