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ParaStation5 Administrator's Guide 67
test_nodes
test_nodes — test physical connections within a cluster.
Synopsis
test_nodes [-np num] [-cnt count] [-map] [-type]
Description
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 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.
Options
-np num
Run the testing program on num nodes.
-cnt num
Send num test packets at once instead of only one.
-map
Don't print error messages but rather print a map with all working connections marked as 1 and all
failed connections as 0.
-type
Print the type of each connection used instead of packets send/received. Implies -map.
See also
psid(8)