The Communicator and corresponding buffers (represented by this class) are separated in order to allow share the same buffer by several communicators. More...
#include <communicator.h>
Collaboration diagram for oofem::CommunicatorBuff:
Public Member Functions | |
| CommunicatorBuff (int s, CommBuffType t=CBT_static) | |
| ~CommunicatorBuff () | |
| ProcessCommunicatorBuff * | giveProcessCommunicatorBuff (int i) |
| Returns i-th process communicator buff. More... | |
Protected Attributes | |
| int | size |
| Number of processes. More... | |
| ProcessCommunicatorBuff ** | processCommBuffs |
| Array of process communicators. More... | |
Detailed Description
The Communicator and corresponding buffers (represented by this class) are separated in order to allow share the same buffer by several communicators.
Here sharing means reusing for different but non-overlapping communications. if communications overlap, the different instances of CommunicatorBuff should be used! The CommunicatorBuff objects are registered in corresponding communicator, then if maps are available, comBuff should be resized and used in subsequent ops.
The registration is necessary, otherwise before each send op the buffers (given probably as parameter) will be resized again (size have to be computed again) and this is probably quite cost operation. When comBuff will be registered, resize is needed only when maps change, and this will not occur frequently (its even quite rare).
Definition at line 60 of file communicator.h.
Constructor & Destructor Documentation
| oofem::CommunicatorBuff::CommunicatorBuff | ( | int | s, |
| CommBuffType | t = CBT_static |
||
| ) |
Definition at line 45 of file communicator.C.
References processCommBuffs, and size.
| oofem::CommunicatorBuff::~CommunicatorBuff | ( | ) |
Definition at line 59 of file communicator.C.
References processCommBuffs, and size.
Member Function Documentation
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inline |
Returns i-th process communicator buff.
The process comm buffs are numbered from rank 0.
- Parameters
-
i Process communicator buff index [0..size-1].
- Returns
- Pointer to corresponding process communicator buff, NULL otherwise.
Definition at line 78 of file communicator.h.
Referenced by oofem::Communicator::Communicator().
Member Data Documentation
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protected |
Array of process communicators.
Definition at line 66 of file communicator.h.
Referenced by CommunicatorBuff(), and ~CommunicatorBuff().
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protected |
Number of processes.
Definition at line 64 of file communicator.h.
Referenced by oofem::Communicator::clearBuffers(), oofem::Communicator::Communicator(), CommunicatorBuff(), oofem::Communicator::finishExchange(), oofem::Communicator::initExchange(), oofem::Communicator::initReceive(), oofem::Communicator::initSend(), oofem::Communicator::~Communicator(), and ~CommunicatorBuff().
The documentation for this class was generated from the following files: