[mpich-discuss] mpdboot hangs, but ...

[Scott Atchley]

Dave,

If it matters, I am using Centos5.3. I have not noticed this behavior  
before when using Ubuntu 9.4.

Scott

On Dec 14, 2009, at 11:49 AM, Scott Atchley wrote:

> Dave,
>
> After ^C, it reports:
>
> ^[[CTraceback (most recent call last):
>  File "/nfs/home/atchley/projects/mpich2-mx-1.2.1..6/build/shower/ 
> bin/mpdboot", line 476, in ?
>    mpdboot()
>  File "/nfs/home/atchley/projects/mpich2-mx-1.2.1..6/build/shower/ 
> bin/mpdboot", line 347, in mpdboot
>    handle_mpd_output(fd,fd2idx,hostsAndInfo)
>  File "/nfs/home/atchley/projects/mpich2-mx-1.2.1..6/build/shower/ 
> bin/mpdboot", line 385, in handle_mpd_output
>    for line in fd.readlines():    # handle output from shells that  
> echo stuff
> KeyboardInterrupt
>
> Let me know if you need more info.
>
> Scott
>
> On Dec 14, 2009, at 11:04 AM, Dave Goodell wrote:
>
>> Thanks Scott.  I'll take another crack at reproducing this locally.
>>
>> -Dave
>>
>> On Dec 14, 2009, at 9:37 AM, Scott Atchley wrote:
>>
>>> Dave,
>>>
>>> I can reproduce it at will. More info below. I am using two host  
>>> (shower03 and shower04) with four cores each. I am launching from  
>>> shower03. My hosts file is:
>>>
>>> % cat hosts.mpd
>>> shower03:4
>>> shower04:4
>>>
>>> I am calling mpdboot with:
>>>
>>> % mpdboot -n 2 -f hosts.mpd --ncpus=4 --mpd=`which mpd` --rsh=ssh -v
>>> running mpdallexit on shower04
>>> LAUNCHED mpd on shower04  via
>>> RUNNING: mpd on shower04
>>> LAUNCHED mpd on shower03  via  shower04
>>>
>>> I have strace and gdb backtrace for mpdboot below. It is still  
>>> hung. Let me know if you want backtraces from either of the mpds.
>>>
>>> Scott
>>>
>>>
>>>
>>> (gdb) info threads
>>> * 1 Thread 0x2aaaaaab7f90 (LWP 23351)  0x0000003d508c5f00 in  
>>> __read_nocancel () from /lib64/libc.so.6
>>> (gdb) bt
>>> #0  0x0000003d508c5f00 in __read_nocancel () from /lib64/libc.so.6
>>> #1  0x0000003d5086b853 in _IO_file_xsgetn_internal () from /lib64/ 
>>> libc.so.6
>>> #2  0x0000003d50861c82 in fread () from /lib64/libc.so.6
>>> #3  0x0000003d51846507 in ?? () from /usr/lib64/libpython2.4.so.1.0
>>> #4  0x0000003d5189497a in PyEval_EvalFrame () from /usr/lib64/ 
>>> libpython2.4.so.1.0
>>> #5  0x0000003d51894426 in PyEval_EvalFrame () from /usr/lib64/ 
>>> libpython2.4.so.1.0
>>> #6  0x0000003d51894426 in PyEval_EvalFrame () from /usr/lib64/ 
>>> libpython2.4.so.1.0
>>> #7  0x0000003d518958a5 in PyEval_EvalCodeEx () from /usr/lib64/ 
>>> libpython2.4.so.1.0
>>> #8  0x0000003d518958f2 in PyEval_EvalCode () from /usr/lib64/ 
>>> libpython2.4.so.1.0
>>> #9  0x0000003d518b1f29 in ?? () from /usr/lib64/libpython2.4.so.1.0
>>> #10 0x0000003d518b33d8 in PyRun_SimpleFileExFlags () from /usr/ 
>>> lib64/libpython2.4.so.1.0
>>> #11 0x0000003d518b980d in Py_Main () from /usr/lib64/ 
>>> libpython2.4.so.1.0
>>> #12 0x0000003d5081d994 in __libc_start_main () from /lib64/libc.so.6
>>> #13 0x0000000000400629 in _start ()
>>> (gdb)
>>>
>>>
>>>
>>> <bt.txt.gz>
>>> _______________________________________________
>>> mpich-discuss mailing list
>>> mpich-discuss at mcs.anl.gov
>>> https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss
>>
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