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Hi all,
I am having an issue with mpiexec, I have a bundled install with Fire Dynamics Simulator (FDS) and I am attempting to run a simple hello world script that is bundled with FDS called test_mpi link: https://github.com/firemodels/fds/blob/master/Utilities/test_mpi/test_mpi.f90
The issue I have is if I run:
'mpiexec -hosts 2 non-local-machine 1 local-machine 1 test_mpi'
I get the hello work with the rank, however, if I swap such that the local-machine is first, I only get the localhost machine reported with the non-local-machine never replying.
Should this be an expected result or is there an issue somewhere?
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That invocation is certain not to work, it's not conforming to command-line syntax. You want to run something like:
mpiexec -n 2 -host non-local-machine test_mpi : -n 1 -host localhost test_mpi
for your case.
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Many thanks for this, I have tried the above with the same results (a hang waiting for a reply), ironically if I launch the above:
mpiexec -n 2 -host non-local-machine test_mpi : -n 1 -host localhost test_mpi
It hangs awaiting a localhost reply, if I then launch a separate mpi localhost only request, I get a reply in the original command window whilst the second window waits for a reply.
Would this point to a network issue?
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Could you provide output of
mpiexec -v -n 1 -host localhost test_mpi
If you get output from remote machine, that's unlikely to be a network issue.
Are you running under Linux or Windows?
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Maksim B. (Intel) wrote:Could you provide output of
mpiexec -v -n 1 -host localhost test_mpiIf you get output from remote machine, that's unlikely to be a network issue.
Are you running under Linux or Windows?
Under Windows:
type helpfds for help on running fds
C:\Users\CFD>mpiexec -v -n 1 -host localhost test_mpi
[proxy:0:0@CFD-PC11] pmi cmd from fd 372: cmd=init pmi_version=1 pmi_subversion=1
[proxy:0:0@CFD-PC11] PMI response: cmd=response_to_init pmi_version=1 pmi_subversion=1 rc=0
[proxy:0:0@CFD-PC11] pmi cmd from fd 372: cmd=get_maxes
[proxy:0:0@CFD-PC11] PMI response: cmd=maxes kvsname_max=256 keylen_max=64 vallen_max=1024
[proxy:0:0@CFD-PC11] pmi cmd from fd 372: cmd=get_appnum
[proxy:0:0@CFD-PC11] PMI response: cmd=appnum appnum=0
[proxy:0:0@CFD-PC11] pmi cmd from fd 372: cmd=get_my_kvsname
[proxy:0:0@CFD-PC11] PMI response: cmd=my_kvsname kvsname=kvs_6920_0
[proxy:0:0@CFD-PC11] pmi cmd from fd 372: cmd=barrier_in
[proxy:0:0@CFD-PC11] PMI response: cmd=barrier_out
[proxy:0:0@CFD-PC11] pmi cmd from fd 372: cmd=get_my_kvsname
[proxy:0:0@CFD-PC11] PMI response: cmd=my_kvsname kvsname=kvs_6920_0
[proxy:0:0@CFD-PC11] pmi cmd from fd 372: cmd=put kvsname=kvs_6920_0 key=OFI-0 value=OFI#0200CE2FC0A801330000000000000000$
[proxy:0:0@CFD-PC11] PMI response: cmd=put_result rc=0 msg=success
[proxy:0:0@CFD-PC11] pmi cmd from fd 372: cmd=barrier_in
[proxy:0:0@CFD-PC11] PMI response: cmd=barrier_out
[proxy:0:0@CFD-PC11] pmi cmd from fd 372: cmd=get kvsname=kvs_6920_0 key=OFI-0
[proxy:0:0@CFD-PC11] PMI response: cmd=get_result rc=0 msg=success value=OFI#0200CE2FC0A801330000000000000000$
[proxy:0:0@CFD-PC11] pmi cmd from fd 372: cmd=barrier_in
[proxy:0:0@CFD-PC11] PMI response: cmd=barrier_out
Hello world: rank 0 of 1 running on
CFD-PC11
[proxy:0:0@CFD-PC11] pmi cmd from fd 372: cmd=finalize
[proxy:0:0@CFD-PC11] PMI response: cmd=finalize_ack
C:\Users\CFD>
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What is your IMPI version, that can be found with
mpiexec --version
Can you give the output of
mpiexec -v -n 1 -host non-local-machine test_mpi : -n 1 -host localhost test_mpi
Can you check that remote machine has hydra_service running?
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Maksim B. (Intel) wrote:What is your IMPI version, that can be found with
mpiexec --version
type helpfds for help on running fds
C:\Users\CFD>mpiexec --version
Intel(R) MPI Library for Windows* OS, Version 2019 Build 20180829 (id: 15f5d6c0c)
Copyright 2003-2018, Intel Corporation.
C:\Users\CFD
Maksim B. (Intel) wrote:
Can you give the output of
mpiexec -v -n 1 -host non-local-machine test_mpi : -n 1 -host localhost test_mpiCan you check that remote machine has hydra_service running?
No output is produced it just hangs,
hydra_service.exe is running on the remote pc
If I open a new cmd window and type mpiexec -n 1 test_mpi, the original console returns:
C:\Users\CFD>mpiexec -v -n 1 -host cfd-pc2 test_mpi : -n 1 -host localhost test_mpi
[proxy:0:1@CFD-PC11] pmi cmd from fd 372: cmd=init pmi_version=1 pmi_subversion=1
[proxy:0:1@CFD-PC11] PMI response: cmd=response_to_init pmi_version=1 pmi_subversion=1 rc=0
[proxy:0:1@CFD-PC11] pmi cmd from fd 372: cmd=get_maxes
[proxy:0:1@CFD-PC11] PMI response: cmd=maxes kvsname_max=256 keylen_max=64 vallen_max=1024
[proxy:0:1@CFD-PC11] pmi cmd from fd 372: cmd=get_appnum
[proxy:0:1@CFD-PC11] PMI response: cmd=appnum appnum=1
[proxy:0:1@CFD-PC11] pmi cmd from fd 372: cmd=get_my_kvsname
[proxy:0:1@CFD-PC11] PMI response: cmd=my_kvsname kvsname=kvs_4312_0
[proxy:0:1@CFD-PC11] pmi cmd from fd 372: cmd=get_my_kvsname
[proxy:0:1@CFD-PC11] PMI response: cmd=my_kvsname kvsname=kvs_4312_0
[proxy:0:1@CFD-PC11] pmi cmd from fd 372: cmd=get kvsname=kvs_4312_0 key=PMI_process_mapping
[proxy:0:1@CFD-PC11] PMI response: cmd=get_result rc=0 msg=success value=(vector,(0,2,1))
[proxy:0:1@CFD-PC11] pmi cmd from fd 372: cmd=get kvsname=kvs_4312_0 key=PMI_active_process_mapping
[proxy:0:1@CFD-PC11] PMI response: cmd=get_result rc=0 msg=success value=(vector,(0,2,0))
[proxy:0:1@CFD-PC11] pmi cmd from fd 372: cmd=barrier_in
[proxy:0:1@CFD-PC11] PMI response: cmd=barrier_out
[proxy:0:1@CFD-PC11] pmi cmd from fd 372: cmd=get_my_kvsname
[proxy:0:1@CFD-PC11] PMI response: cmd=my_kvsname kvsname=kvs_4312_0
[proxy:0:1@CFD-PC11] pmi cmd from fd 372: cmd=put kvsname=kvs_4312_0 key=OFI-1 value=OFI#0200CEC6C0A801330000000000000000$
[proxy:0:1@CFD-PC11] PMI response: cmd=put_result rc=0 msg=success
[proxy:0:1@CFD-PC11] pmi cmd from fd 372: cmd=barrier_in
[proxy:0:1@CFD-PC11] PMI response: cmd=barrier_out
[proxy:0:1@CFD-PC11] pmi cmd from fd 372: cmd=get kvsname=kvs_4312_0 key=OFI-0
[proxy:0:1@CFD-PC11] PMI response: cmd=get_result rc=0 msg=success value=OFI#0200CEC5C0A801330000000000000000$
[proxy:0:1@CFD-PC11] pmi cmd from fd 372: cmd=get kvsname=kvs_4312_0 key=OFI-1
[proxy:0:1@CFD-PC11] PMI response: cmd=get_result rc=0 msg=success value=OFI#0200CEC6C0A801330000000000000000$
[proxy:0:1@CFD-PC11] pmi cmd from fd 372: cmd=barrier_in
[proxy:0:1@CFD-PC11] PMI response: cmd=barrier_out
Hello world: rank 0 of 2 running on
CFD-PC11
Hello world: rank 1 of 2 running on
CFD-PC11
[proxy:0:1@CFD-PC11] pmi cmd from fd 372: cmd=finalize
[proxy:0:1@CFD-PC11] PMI response: cmd=finalize_ack
C:\Users\CFD>
many thanks,

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