This directory contains programs and tests that need to be run by

a human being rather than a script.  Instructions on running each test

are in the test file at the top.

singjoin - A test of Comm_join, including a test of comm_join by singleton

           processes

testconnect - A test of Comm_connect and Comm_accept, with many processes.

              Use the script manyconnect to run them, as in

make testconnect

./manyconnect

dimsbalanced - A test of MPI_Dims_create; this checks that Dims_create 

               produces well-balanced results.  Since there are no 

               requirements on the "balance" of the output of Dims_create,

               this is a test of the quality of implementation of the

               default MPI_Dims_create when there is no underlying 

               network topology.

spawntest_master, spawntest_child - A test of MPI_Comm_disconnect to ensure

		  that once processes are disconnected, one can proceed

		  through MPI_Finalize without waiting for the other to

		  also proceed through MPI_Finalize.  This test is 

		  designed to succeed even if either the child or master

		  waits for the other in MPI_Finalize.  If MPI_Comm_disconnect

		  works correctly, the spawned children (4 by default), 

		  should exit roughly 30 seconds before the master.

segfault - a simple test that intentionally segfaults if its rank is 0,

           otherwise does nothing.  The output from mpiexec should make it clear

           that one of the processes segfaulted (not just terminated badly), and

           ideally indicate which process.  Make sure to run it with a range of

           comm_world sizes, including 1 and 2.