#include <config.h>
...
#ifdef WITH_MPI
#include <mpi.h>
#endif
...
...
extern bool gMPIParallel;
#ifdef WITH_MPI
extern MPI_Comm gRingItemComm;
extern MPI_Comm gXamineGateComm;
#endif
#define MPI_ROOT_RANK 0
#define MPI_EVENT_SINK_RANK 1
#define MPI_FIRST_WORKER_RANK 2
#ifndef MPI_TCL_TAG
#define MPI_TCL_TAG 1
#endif
#define MPI_TRACE_RELAY_TAG 2
#define MPI_RING_ITEM_TAG 3
...
The SpecTcl header Globals.h, which is installed in the include of the SpecTcl installation tree, provides several definitions that are generally useful for SpecTcl in the MPI environment.
The include for config.h is shown because, if SpecTcl was built with MPI support the configure script will define the pre-processor symbol WITH_MPI. This can be used to conditionalize the compilation of code and definitions that depend on the installation of a version of MPI and the use of an MPI compiler driver.
The items defined are:
This boolean is defined to be true at run time if the program has been built with MPI support and is running as an MPI parallel program.
This item is only defined if SpecTcl was built with MPI parallel support. It is the communicator used to send ring items to the ring item pump.
This item is only defined if SpecTcl was built with MPI parallel support. It is the communicator used to send gate definitions to the Xamine Gate pump.
This preprocessor definition is the world communicator rank of the root process.
This preprocessor definition is the world communicator rank of the process that runs the event sink pipeline.
This preprocessor definition is the world communicator rank of the lowest ranked process that runs the analysis pipeline; that is worker processes.
This preprocessor definition is the MPI tag used on messages sent to the Tcl pump. It is also defined in TclPump.h
This preprocessor definition is the MPI tag used on gate trace messages sent to the gate trace pump.
This preprocessor defintion is the MPI tag used on Ring item messages sent to the ring item pump.