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MPE_Seq_begin
Langue: en
Version: 183623 (CentOS - 06/07/09)
Section: 4 (Pilotes et protocoles réseau)
NAME
MPE_Seq_begin - Begins a sequential section of code.SYNOPSIS
void MPE_Seq_begin( MPI_Comm comm, int ng )
INPUT PARAMETERS
- comm
- - Communicator to sequentialize.
- ng
- - Number in group. This many processes are allowed to execute at the same time. Usually one.
NOTES
MPE_Seq_begin and MPE_Seq_end provide a way to force a section of code to be executed by the processes in rank order. Typically, this is done withMPE_Seq_begin( comm, 1 ); <code to be executed sequentially> MPE_Seq_end( comm, 1 );
Often, the sequential code contains output statements (e.g., printf ) to be executed. Note that you may need to flush the I/O buffers before calling MPE_Seq_end ; also note that some systems do not propagate I/O in any order to the controling terminal (in other words, even if you flush the output, you may not get the data in the order that you want).
LOCATION
mpe_seq.cContenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre