commbound.c File Reference

Contains the functions used to synchronize buffer zones on all processes. More...

#include "fargo.h"

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Functions
void	AllocateComm ()
void	CommunicateBoundaries (PolarGrid *Density, PolarGrid *Vrad, PolarGrid *Vtheta, PolarGrid *Energy, PolarGrid *Label)

Variables
static real *	SendInnerBoundary
static real *	SendOuterBoundary
static real *	RecvInnerBoundary
static real *	RecvOuterBoundary
static int	allocated_com = 0
static int	size_com

Detailed Description

Contains the functions used to synchronize buffer zones on all processes.

In addition to the main function that allows the synchronization (note that even processes first send their inner zones to the previous process, then receive their inner buffer from this process, while odd processes first receive their outer buffer from the next process, then send their outer zones to the next process. This file also contains the function that allocates the memory for the communication (once for all the run).

Author

THORIN modifications by Ondřej Chrenko chren.nosp@m.ko@s.nosp@m.irrah.nosp@m..tro.nosp@m.ja.mf.nosp@m.f.cu.nosp@m.ni.cz, Copyright (C) 2017; original code by Frédéric Masset

Definition in file commbound.c.

Function Documentation

void AllocateComm

(

)

Definition at line 28 of file commbound.c.

References AdvecteLabel, allocated_com, CPU_Rank, CPUOVERLAP, EnergyEq, NSEC, prs_exit(), RecvInnerBoundary, RecvOuterBoundary, SendInnerBoundary, SendOuterBoundary, size_com, and YES.

Referenced by CommunicateBoundaries().

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void CommunicateBoundaries	(	PolarGrid *	Density,
		PolarGrid *	Vrad,
		PolarGrid *	Vtheta,
		PolarGrid *	Energy,
		PolarGrid *	Label
	)

Definition at line 47 of file commbound.c.

References AdvecteLabel, AllocateComm(), allocated_com, CPU_Number, CPU_Rank, CPUOVERLAP, EnergyEq, fargostat, MPI_COMM_WORLD, MPI_DOUBLE, MPI_Irecv(), MPI_Isend(), MPI_Wait(), NSEC, RecvInnerBoundary, RecvOuterBoundary, SendInnerBoundary, SendOuterBoundary, size_com, and YES.

Referenced by AlgoGas().

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Variable Documentation

int allocated_com = 0

static

Definition at line 25 of file commbound.c.

Referenced by AllocateComm(), and CommunicateBoundaries().

real* RecvInnerBoundary

static

Definition at line 22 of file commbound.c.

Referenced by AllocateComm(), and CommunicateBoundaries().

real* RecvOuterBoundary

static

Definition at line 23 of file commbound.c.

Referenced by AllocateComm(), and CommunicateBoundaries().

real* SendInnerBoundary

static

Definition at line 20 of file commbound.c.

Referenced by AllocateComm(), and CommunicateBoundaries().

real* SendOuterBoundary

static

Definition at line 21 of file commbound.c.

Referenced by AllocateComm(), and CommunicateBoundaries().

int size_com

static

Definition at line 26 of file commbound.c.

Referenced by AllocateComm(), and CommunicateBoundaries().