[mvapich-discuss] MPI Code hangs at MPI_Init

[Arnold, Mark]

(For the mail list archive)

After further discussion with the user, the issue got fixed by using mpirun_rsh as the job launcher instead of mpirun.

-Mark

________________________________
From: mvapich-discuss-bounces at cse.ohio-state.edu on behalf of Vaibhav Sundriyal [vaibhavsupersaiyan9 at gmail.com]
Sent: Wednesday, December 06, 2017 9:24 PM
To: mvapich-discuss at cse.ohio-state.edu
Subject: [mvapich-discuss] MPI Code hangs at MPI_Init

Hi,


I have configure MVAPICH on two nodes and when I give the command

mpirun -n 2  -hostfile hostfile -env MV2_SMP_USE_CMA=0 hostname

where hostfile looks like

node1:1
node2:2

, the hostnames of both the nodes get printed. But, when I try to execute OSU benchmark ./osu_latency, the execution hangs. Through some debugging, I figured out that the execution hangs at

MPI_CHECK(MPI_Init(&argc, &argv));

Can anyone help me resolve this issue?

Thanks.

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