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Chapter 2. Interacting With the System
Using the command option bpstat -P (with an uppercase "P" instead of a lowercase "p") tells bpstat to take the output of
the ps and reformat it, pre-pending a column showing the node number. The following two examples show the difference in
the outputs from ps and from bpstat -P.
Example output from ps:
[user@cluster user] $ ps xf
PID
6503
6665
6471
6538
6553
6654
6655
6656
6658
6657
6660
6659
6662
6661
6663
TTY
pts/2
pts/2
pts/3
pts/3
pts/3
pts/3
pts/3
pts/3
pts/3
pts/3
pts/3
pts/3
pts/3
pts/3
pts/3
STAT
S
R
S
S
S
R
S
RW
SW
RW
SW
RW
SW
SW
SW
TIME
0:00
0:00
0:00
0:00
0:00
0:03
0:00
0:01
0:00
0:01
0:00
0:01
0:00
0:00
0:00
COMMAND
bash
ps xf
bash
/bin/sh /usr/bin/linpack
\_ /bin/sh /usr/bin/mpirun -np 5 /tmp/xhpl
\_ /tmp/xhpl -p4pg /tmp/PI6553 -p4wd /tmp
\_ /tmp/xhpl -p4pg /tmp/PI6553 -p4wd /tmp
\_ [xhpl]
|
\_ [xhpl]
\_ [xhpl]
|
\_ [xhpl]
\_ [xhpl]
|
\_ [xhpl]
\_ [xhpl]
\_ [xhpl]
Example of the same ps output when run through bpstat -P instead:
[user@cluster user] $ ps xf | bpstat -P
NODE
0
0
1
1
2
2
3
3
PID
6503
6666
6667
6471
6538
6553
6654
6655
6656
6658
6657
6660
6659
6662
6661
6663
TTY
pts/2
pts/2
pts/2
pts/3
pts/3
pts/3
pts/3
pts/3
pts/3
pts/3
pts/3
pts/3
pts/3
pts/3
pts/3
pts/3
STAT
S
R
R
S
S
S
R
S
RW
SW
RW
SW
RW
SW
SW
SW
TIME
0:00
0:00
0:00
0:00
0:00
0:00
0:06
0:00
0:06
0:00
0:06
0:00
0:06
0:00
0:00
0:00
COMMAND
bash
ps xf
bpstat -P
bash
/bin/sh /usr/bin/linpack
\_ /bin/sh /usr/bin/mpirun -np 5 /tmp/xhpl
\_ /tmp/xhpl -p4pg /tmp/PI6553 -p4wd /tmp
\_ /tmp/xhpl -p4pg /tmp/PI6553 -p4wd /tmp
\_ [xhpl]
|
\_ [xhpl]
\_ [xhpl]
|
\_ [xhpl]
\_ [xhpl]
|
\_ [xhpl]
\_ [xhpl]
\_ [xhpl]
For additional information on bpstat, see the section on monitoring node status earlier in this chapter. For information on
the bpstat command line options, see the Reference Guide.
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