Reference documentation for deal.II version 9.2.0
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#include <deal.II/base/mpi_consensus_algorithms.h>
Public Member Functions | |
NBX (Process< T1, T2 > &process, const MPI_Comm &comm) | |
virtual | ~NBX ()=default |
virtual void | run () override |
Public Member Functions inherited from Utilities::MPI::ConsensusAlgorithms::Interface< T1, T2 > | |
Interface (Process< T1, T2 > &process, const MPI_Comm &comm) | |
virtual | ~Interface ()=default |
Private Member Functions | |
bool | check_own_state () |
void | signal_finish () |
bool | check_global_state () |
void | answer_requests () |
void | start_communication () |
void | clean_up_and_end_communication () |
Private Attributes | |
std::vector< unsigned int > | targets |
std::vector< std::vector< T1 > > | send_buffers |
std::vector< MPI_Request > | send_requests |
std::vector< std::vector< T2 > > | recv_buffers |
std::vector< MPI_Request > | recv_requests |
std::vector< std::unique_ptr< std::vector< T2 > > > | request_buffers |
std::vector< std::unique_ptr< MPI_Request > > | request_requests |
MPI_Request | barrier_request |
std::set< unsigned int > | requesting_processes |
Additional Inherited Members | |
Protected Attributes inherited from Utilities::MPI::ConsensusAlgorithms::Interface< T1, T2 > | |
Process< T1, T2 > & | process |
const MPI_Comm & | comm |
const unsigned int | my_rank |
const unsigned int | n_procs |
This class implements a concrete algorithm for the ConsensusAlgorithms::Interface base class, using only point-to-point communications and a single IBarrier.
T1 | The type of the elements of the vector to be sent. |
T2 | The type of the elements of the vector to be received. |
Definition at line 228 of file mpi_consensus_algorithms.h.
Utilities::MPI::ConsensusAlgorithms::NBX< T1, T2 >::NBX | ( | Process< T1, T2 > & | process, |
const MPI_Comm & | comm | ||
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virtualdefault |
Destructor.
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overridevirtual |
Run consensus algorithm.
Implements Utilities::MPI::ConsensusAlgorithms::Interface< T1, T2 >.
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Check if all request answers have been received by this rank.
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Signal to all other ranks that this rank has received all request answers via entering IBarrier.
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Check if all ranks have received all their request answers, i.e. all ranks have reached the IBarrier.
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A request message from another rank has been received: process the request and send an answer.
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Start to send all requests via ISend and post IRecvs for the incoming answer messages.
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After all rank has received all answers, the MPI data structures can be freed and the received answers can be processed.
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List of processes this process wants to send requests to.
Definition at line 255 of file mpi_consensus_algorithms.h.
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Buffers for sending requests.
Definition at line 260 of file mpi_consensus_algorithms.h.
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Requests for sending requests.
Definition at line 265 of file mpi_consensus_algorithms.h.
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Buffers for receiving answers to requests.
Definition at line 270 of file mpi_consensus_algorithms.h.
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Requests for receiving answers to requests.
Definition at line 276 of file mpi_consensus_algorithms.h.
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Buffers for sending answers to requests.
Definition at line 281 of file mpi_consensus_algorithms.h.
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Requests for sending answers to requests.
Definition at line 286 of file mpi_consensus_algorithms.h.
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Definition at line 289 of file mpi_consensus_algorithms.h.
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List of processes who have made a request to this process.
Definition at line 296 of file mpi_consensus_algorithms.h.