MPIcallInfo¶

public final class MPIcallInfo¶: The collection of all info about a particular Message-Passing call, needed to analyze it and to differentiate it more easily later.

Methods¶

argumentIsABuffer¶

public boolean argumentIsABuffer(int argumentRank)¶

argumentIsAReduceOp¶

public boolean argumentIsAReduceOp(int argumentRank)¶

argumentIsAType¶

public boolean argumentIsAType(int argumentRank)¶

argumentIsRead¶

public boolean argumentIsRead(int argumentRank)¶

checkMessagePassingCalls¶

protected static void checkMessagePassingCalls(CallGraph callGraph)¶

checkNumberOfChannels¶

protected static int checkNumberOfChannels(CallGraph callGraph)¶

findMessagePassingChannel¶

public TapPair<MPIcallInfo, TapIntList> findMessagePassingChannel(CallGraph callGraph)¶

findMessagePassingChannelZones¶

public TapIntList findMessagePassingChannelZones(CallGraph callGraph)¶

funcName¶

public String funcName()¶: The full name of this message-passing call, capitalized the way it is used.

getMessagePassingMPIcallInfo¶

public static MPIcallInfo getMessagePassingMPIcallInfo(String funcName, Tree callTree, int language, Block block)¶

Get (or create) the Message-Passing info attached to the particular call “callTree”.

Returns: null when callTree is not and MPI call or is an MPI call irrelevant to AD (e.g. mpi_init, mpi_finalize,…).

isCommCreation¶

public boolean isCommCreation()¶

isCommFree¶

public boolean isCommFree()¶

isMessagePassingFunction¶

public static boolean isMessagePassingFunction(String funcName, int language)¶

Parameters

funcName – MPI or AMPI function name.
language – current language.

Returns

true for a Message Passing call.

isNonBlocking¶

public boolean isNonBlocking()¶

isNonBlockingMPI¶

public static boolean isNonBlockingMPI(Tree callTree, Unit calledUnit, Block block)¶

isOnDifferentiableType¶

public boolean isOnDifferentiableType()¶: When false, indicates that this message-passing call deals with values of non-differentiable type, and therefore must not be differentiated.

isPointToPoint¶

public boolean isPointToPoint()¶

Returns: True when this is a send or recv i.e. one end of a point-to-point communication.

isReduceCall¶

public boolean isReduceCall()¶

receivedExprFromChannel¶

public Tree receivedExprFromChannel()¶

registerMessagePassingChannel¶

public void registerMessagePassingChannel(CallGraph callGraph)¶

replaceMPIconstantsIfPossible¶

public static Tree replaceMPIconstantsIfPossible(Tree preprocessedTree)¶: NOT_YET_IMPLEMENTED !!! When possible, replace a Tree which has been returned by the C preprocessor, e.g. (MPI_Comm)0x44000000, with a reference to the MPI defined name it had before, e.g. MPI_COMM_WORLD.

sentExprToChannel¶

public Tree sentExprToChannel()¶

toString¶

public String toString()¶