[mvapich-discuss] MVAPICH2-GDR 2.2 run issue

[Sourav Chakraborty]

Hi Na,

This looks like an issue with your firewall or ssh settings. Are you able
to ssh into the nodes without entering a password?

Thanks,
Sourav


On Mon, Oct 16, 2017 at 4:57 PM, Na Zhang <nkuzhangna at gmail.com> wrote:

> Hi MVAPICHdevelopers and users:
>
> I'm trying to install MVAPICH2-GDR 2.2 and test whether GPU Direct works
> in my environment.
>
> I installed MVAPICH2-GDR 2.2  (mvapich2-gdr-2.2-4.cuda8.0.
> mofed4.0.gnu4.8.5.el7.centos.x86_64.rpm) and set up environmental
> variables and used the following command to test:
>
> export MV2_PATH=/opt/mvapich2/gdr/no-mcast/2.2/cuda8.0/mpirun/gnu4.8.5
> export MV2_GPUDIRECT_GDRCOPY_LIB=/opt/mvapich2/gdr/no-mcast/2.2/
> cuda8.0/mpirun/gnu4.8.5/lib64
> export MV2_USE_CUDA=1
> export MV2_IBA_HCA=mlx4_0
>
> $MV2_PATH/bin/mpirun_rsh -debug -np 2 host1 host2
> LD_PRELOAD=$MV2_PATH/lib64/libmpi.so $MV2_PATH/libexec/osu-micro-benchmarks/get_local_rank
> $MV2_PATH/libexec/osu-micro-benchmarks/osu_latency D D
>
> The debug message shows:
>
> /usr/bin/xterm: Xt error: Can't open display:
> /usr/bin/xterm: DISPLAY is not set
> [bitfusion-master:mpirun_rsh][child_handler] Error in init phase,
> aborting! (0/2 mpispawn connections)
> /usr/bin/xterm: Xt error: Can't open display:
> /usr/bin/xterm: DISPLAY is not set
>
> I'm using Ubuntu 16.04, CUDA 8.0 and OFED 4.1-1.0.2. Each host has one
> NVIDIA P100 and one Mellanox Connect X-3 card (Infiniband mode). And I have
> Mellanox's nv_peer_mem module installed on the two hosts.
>
> Any suggestions are appreciated. Thanks.
>
> Best,
> Na
>
>
>
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