# pvserver on multiple nodes

**URL:** https://discourse.paraview.org/t/pvserver-on-multiple-nodes/8477
**Category:** ParaView Support
**Tags:** mpi
**Created:** [November 24, 2021, 8:59am UTC](https://discourse.paraview.org/t/pvserver-on-multiple-nodes/8477 "2021-11-24T08:59:51Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![pavel](https://discourse.paraview.org/user_avatar/discourse.paraview.org/pavel/32/8287_2.png) [@pavel](https://discourse.paraview.org/u/pavel)
#### Post date: [November 24, 2021, 8:59am UTC](https://discourse.paraview.org/t/pvserver-on-multiple-nodes/8477/1 "2021-11-24T08:59:51Z")

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Hello,

I try to run pvserver on two nodes (with Ubuntu 20.04) using  
`mpiexec -n 2 --hosts hostname1,hostname2 pvserver` and get an error:

```auto

===========
2021-11-24 11:32:52.094 ( 5.146s) [7B911C40] vtkMPICommunicator.cxx:68 WARN| MPI had an error
------------------------------------------------
Other MPI error, error stack:
PMPI_Comm_dup(179)..................: MPI_Comm_dup(MPI_COMM_WORLD, new_comm=0x14a9370) failed
PMPI_Comm_dup(164)..................:
MPIR_Comm_dup_impl(57)..............:
MPII_Comm_copy(571).................:
MPIR_Get_contextid_sparse_group(496): Failure during collective
------------------------------------------------
application called MPI_Abort(MPI_COMM_WORLD, 409028623) - process 0
 ==========

```

I use ParaView’s binaries downloaded from the website (ParaView-5.9.1-MPI-Linux-Python3.8-64bit.tar.gz). Simple command like `mpiexec -n 2 --hosts hostname1,hostname2 hostname` works fine. I can also run pvserver on several cores at one node and connect client to it. I have tried to run pvserver on multiple nodes for two different pairs of machines, using mpi from ParaView’s package, and got the same error. Could you please help me with this issue?

Thanks for the help,  
Pavel