TAU_TRACE_SENDMSG(3)
NAME
TAU_TRACE_SENDMSG - Traces a receive operation
SYNOPSIS
C/C++: TAU_TRACE_SENDMSG(int tag, int source, int length); Fortran: TAU_TRACE_SENDMSG(integer tag, integer source, integer length);
DESCRIPTION
TAU_TRACE_SENDMSG traces an inter-process message communication when a
tagged message is sent to a destination process.
NOTE: When TAU is configured to use MPI (-mpiinc=<dir> -mpilib=<dir>),
the TAU_TRACE_SENDMSG and TAU_TRACE_SENDMSG macros are not required.
The wrapper interposition library in
$(TAU_MPI_LIBS)
uses these macros internally for logging messages.
EXAMPLE
C/C++ :
- if (pid == 0) {
- TAU_TRACE_SENDMSG(currCol, sender, ncols * sizeof(T));
MPI_Send(vctr2, ncols * sizeof(T), MPI_BYTE, sender,currCol, MPI_COMM_WORLD); - } else {
MPI_Recv(&ans, sizeof(T), MPI_BYTE, MPI_ANY_SOURCE,MPI_ANY_TAG,MPI_COMM_WORLD, &stat);MPI_Get_count(&stat, MPI_BYTE, &recvcount);
TAU_TRACE_RECVMSG(stat.MPI_TAG, stat.MPI_SOURCE, recvcount); - }
- Fortran :
- call TAU_TRACE_RECVMSG(tag, source, length)
call TAU_TRACE_SENDMSG(tag, destination, length)