[mvapich-discuss] mvapich2_munmap

burlen burlen.loring at gmail.com
Wed Dec 2 20:04:25 EST 2009


Hi Krishna, I tried it, but it didn't seem to help. Now the available 
ram was exhausted very quickly. way faster than before. The node quickly 
became unresponsive, gdb never finished starting, and the job was killed.

Krishna Chaitanya Kandalla wrote:
> Burlen,
>          Can you run your application with the run-time flag 
> MV2_USE_LAZY_MEM_UNREGISTER=0.  This might lead to slightly poorer 
> performance, but can help us narrow down the problem.
>
> Thanks,
> Krishna
>
> burlen wrote:
>> I have this strange situation when running paraview on a particular 
>> build/install/revision of mvapich. Shortly after paraview starts up 
>> it hangs, and watching in top I see memory grow before it's killed 
>> for using too much. Attaching a debugger I see what looks like an 
>> infinite recursion. It's only happened to me using this particular 
>> build of mvapich which happens to be the only one on this system.
>>
>> Just curious if anyone has seen anything like this before?
>>
>>    (gdb)
>>    
>> where                                                                                                
>>
>>    #0  0x00002aaaaadbb25b in avlfindex () from
>>    /u/burlen/apps/PV3-3.7-D-IV/lib/paraview-3.7/libvtkPVServerCommon.so
>>    #1  0x00002aaaaadae427 in find_and_free_dregs_inside () from
>>    /u/burlen/apps/PV3-3.7-D-IV/lib/paraview-3.7/libvtkPVServerCommon.so
>>    #2  0x00002aaaaad9d1f9 in mvapich2_mem_unhook () from
>>    /u/burlen/apps/PV3-3.7-D-IV/lib/paraview-3.7/libvtkPVServerCommon.so
>>    #3  0x00002aaaaad9d244 in mvapich2_munmap () from
>>    /u/burlen/apps/PV3-3.7-D-IV/lib/paraview-3.7/libvtkPVServerCommon.so
>>    #4  0x00002aaaadfa88c6 in munmap () from
>>    /u/burlen/apps/PV3-3.7-D-IV/lib/paraview-3.7/libicet_mpi.so
>>    #5  0x00002aaaaad9d259 in mvapich2_munmap () from
>>    /u/burlen/apps/PV3-3.7-D-IV/lib/paraview-3.7/libvtkPVServerCommon.so
>>
>>    ...
>>
>>    #73059 0x00002aaaadfa88c6 in munmap () from
>>    /u/burlen/apps/PV3-3.7-D-IV/lib/paraview-3.7/libicet_mpi.so
>>    #73060 0x00002aaaaad9d259 in mvapich2_munmap () from
>>    /u/burlen/apps/PV3-3.7-D-IV/lib/paraview-3.7/libvtkPVServerCommon.so
>>    #73061 0x00002aaaaad979a1 in free () from
>>    /u/burlen/apps/PV3-3.7-D-IV/lib/paraview-3.7/libvtkPVServerCommon.so
>>    #73062 0x00002aaaae441e7e in icetResizeBuffer (size=91607685) at
>>    
>> /u/burlen/ParaView/ParaView3-3.7/Utilities/IceT/src/ice-t/context.c:129
>>
>> mvapich info:
>> Version:          1.2p1.
>> Compiled with:    Intel version 11.0.074
>> Configured with:  --prefix=/nasa/mvapich2/1.2p1/intel --enable-f77 
>> --enable-f90
>>                  --enable-cxx --enable-mpe --enable-romio 
>> --enable-threads=multiple
>>                  --with-rdma=gen2
>>
>>                  CFLAGS = -fPIC
>>
>> _______________________________________________
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>> mvapich-discuss at cse.ohio-state.edu
>> http://mail.cse.ohio-state.edu/mailman/listinfo/mvapich-discuss
>>
>>



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