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MPI problem with fluent

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Old   July 8, 2017, 04:22
Unhappy MPI problem with fluent
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Hi there,
I am new to run fluent 18.0.0 in linux debian. I have installed fluent 18.0.0 on the machine with user account, and set up ssh no password. but when I run the command below:
fluent -g 3d -t4

It ends up with the following output:
/home/dawei/fluent/v180/fluent/fluent18.0.0/bin/fluent -r18.0.0 -g 3d -t4
/home/dawei/fluent/v180/fluent/fluent18.0.0/multiport/mpi_wrapper/bin/mpicheck.fl: 113: [: default: unexpected operator
/home/dawei/fluent/v180/fluent/fluent18.0.0/cortex/lnamd64/cortex.18.0.0 -f fluent -g (fluent "3d -pshmem -host -r18.0.0 -t4 -mpi=ibmmpi -path/home/dawei/fluent/v180/fluent -ssh")
/home/dawei/fluent/v180/fluent/fluent18.0.0/bin/fluent -r18.0.0 3d -pshmem -host -t4 -mpi=ibmmpi -path/home/dawei/fluent/v180/fluent -ssh -cx sere:35914:53097
/home/dawei/fluent/v180/fluent/fluent18.0.0/bin/fluent: 513: [: ibmmpi: unexpected operator
/home/dawei/fluent/v180/fluent/fluent18.0.0/bin/fluent: 516: [: ibmmpi: unexpected operator
/home/dawei/fluent/v180/fluent/fluent18.0.0/bin/fluent: 2143: /home/dawei/fluent/v180/fluent/fluent18.0.0/bin/fluent: Bad substitution
The fluent process could not be started.

if "3d" was typed here, a fluent without parallels can be launched. I don't know what is wrong with mpi!?
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