test_nodes — test physical connections within a cluster.
count] [-map] [-type]
Tests all or some physical (low level) connections within a cluster. Therefore the
program is started on
num nodes. After all
processes came up correctly, each of them starts to send test packets to
every other node of the cluster. For this purpose the PSP_IReceive(3) and PSP_ISend(3) calls of the ParaStation MPI PSPort library are used.
After every node has received data from any node (i.e. an all to all communication was executed), a success message is printed and test_nodes exits. Otherwise after a certain timeout a message concerning the current status about the tested connection is posted.
test_nodes will run as long as any connection between two tested nodes is unable to transport the test packets.
Run the testing program on
num test packets at once
instead of only one.
Don't print error messages but rather print a map with all working connections marked as 1 and all failed connections as 0.
Print the type of each connection used instead of
packets send/received. Implies