I think the larger issue, though, is whether rdmacm will work properly for the LMC>0 case over IB, right?

The fact that it shouldn't be displaying this error message now because RDMA CM is not the default is one issue, but it's not the *real* issue...


On May 6, 2008, at 11:00 AM, Jon Mason wrote:

On Tuesday 06 May 2008 09:41:53 am Jeff Squyres wrote:
I actually don't know what the RDMA CM requires for the LMC>0 case --
does it require a unique IP address for every LID?

It requires a unique IP address for every hca/port in use by rdmacm.

I see the bug in rdmacm (since I don't believe you were trying to use rdmacm), and will have a patch out shortly.


On May 6, 2008, at 5:09 AM, Lenny Verkhovsky wrote:

Hi,

running BW benchmark with btl_openib_max_lmc >= 2 couses warning
( MPI from the TRUNK ) !!!!


#mpirun --bynode -np 40 -hostfile hostfile_ompi_arbel  -mca
btl_openib_max_lmc 2  ./mpi_p_LMC  -t bw -s 400000
BW (40) (size min max avg)  400000      321.493757
342.972837      329.493715

#mpirun --bynode -np 40 -hostfile hostfile_ompi_arbel  -mca
btl_openib_max_lmc 3  ./mpi_p_LMC  -t bw -s 400000
[witch9][[7493,1],7][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch2][[7493,1],0][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch10][[7493,1],9][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch6][[7493,1],4][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch4][[7493,1],2][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch7][[7493,1],5][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch2][[7493,1],10][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch9][[7493,1],17][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch5][[7493,1],3][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch8][[7493,1],6][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch6][[7493,1],14][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch10][[7493,1],19][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch5][[7493,1],13][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch4][[7493,1],12][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch9][[7493,1],27][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch5][[7493,1],23][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch2][[7493,1],20][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch9][[7493,1],37][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch7][[7493,1],35][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch4][[7493,1],32][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch4][[7493,1],22][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch5][[7493,1],33][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch2][[7493,1],30][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch8][[7493,1],16][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch7][[7493,1],15][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch10][[7493,1],39][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch7][[7493,1],25][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch10][[7493,1],29][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch6][[7493,1],34][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch8][[7493,1],26][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch6][[7493,1],24][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
[witch8][[7493,1],36][../../../../../ompi/mca/btl/openib/connect/
btl_openib_connect_rdmacm.c:989:create_message] No IP address found
BW (40) (size min max avg)  400000      312.622582
334.037277      324.014814

using -mca btl openib,self causes warning with LMC >=10


Best regards
Lenny.
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--
Jeff Squyres
Cisco Systems

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