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SU2 v8.0.0 Harrier - Each CPU prints to output |
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#1 |
New Member
Moses
Join Date: Jun 2023
Posts: 12
Rep Power: 3 ![]() |
I am running small input to check the SU2 v8.0.0 Harrier on cluster of two computers each has 8 CPU's. Each CPU prints the output to the log file. I get each line 16 times in the log file.
How to fix it so as in Version 7.5.1 only one cpu will print the output? |
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#2 |
Senior Member
bigfoot
Join Date: Dec 2011
Location: Netherlands
Posts: 596
Rep Power: 17 ![]() |
This happens when you do not compile with mpi support, you should check the meson command and also the output to see if mpi support is added.
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#3 |
New Member
Moses
Join Date: Jun 2023
Posts: 12
Rep Power: 3 ![]() |
Thank you, I will look for the mpi support in meson
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#4 |
New Member
Moses
Join Date: Jun 2023
Posts: 12
Rep Power: 3 ![]() |
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#5 |
Senior Member
bigfoot
Join Date: Dec 2011
Location: Netherlands
Posts: 596
Rep Power: 17 ![]() |
Do you use openmpi or mpich?
Do you get these kind of problems: SU2 parallel install build from source failed Also check here: https://su2code.github.io/docs_v7/Bu...n-is-not-found if you have mpich, you need to use these meson options: Code:
-Dcustom-mpi=true -Dextra-deps=mpich |
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#6 |
New Member
Moses
Join Date: Jun 2023
Posts: 12
Rep Power: 3 ![]() |
Thank you,
Although I try to launch SU2 with /applhome/mpich/mpich-4.1.2-rocky87/bin/mpirun the program tries to open the /usr/lib64/openmpi/lib/libmpi.so.40 |
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#7 |
Senior Member
bigfoot
Join Date: Dec 2011
Location: Netherlands
Posts: 596
Rep Power: 17 ![]() |
if you have multiple mpi's installed, then you can set the active mpi using
Code:
update-alternatives --config mpi update-alternatives --config mpirun Code:
which mpirun /usr/bin/mpirun ls -lrt /usr/bin/mpirun /usr/bin/mpirun -> /etc/alternatives/mpirun ls -lrt /etc/alternatives/mpirun /etc/alternatives/mpirun -> /usr/bin/mpirun.mpich |
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