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compiling with openmpi 2018

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Old   November 6, 2018, 17:36
Default compiling with openmpi 2018
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Tom Jentink
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getting an error on csr.c in metis routines. it's just a warning, but my parallel config is not running parallel, so I'm wondering if this is the problem.

CC GKlib/libmetis_a-csr.o
GKlib/csr.c(796): warning #3180: unrecognized OpenMP #pragma
#pragma omp parallel private(i, j, ncand, rsum, tsum, cand)
^

GKlib/csr.c(800): warning #3180: unrecognized OpenMP #pragma
#pragma omp for schedule(static)
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Old   November 6, 2018, 18:11
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I got rid of the warning with --with-metis-cppflags="-fopenmp"
Now to see if it will run in parallel
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Old   November 7, 2018, 12:06
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Tom Jentink
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It won't run the partitioning step now. It gets to "Read Grid File Information", lists the number of points, and then dies, saying "could not launch executable"

I'm using a pbs scheduler, and have all my path and environment set up properly i'm pretty sure.
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Old   November 8, 2018, 06:53
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Pedro Gomes
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What version of openmpi are you using specifically (x.y.z)?

How are you compiling the code?

Before using a scheduler, have you tried running on a local machine?
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Old   November 8, 2018, 09:41
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Tom Jentink
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openmpi_3.0.1_intel_2018
intel_2018.2.199

Haven't tried serial since it's really of no use to me and I can't run interactive on our main cluster.

Right now, it seems to be a path issue to whatever is called to do the grid partitioning. But when I had that step working, it would load one cpu up with the entire parmetis job and eventually die due to maxxing out the memory.
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Old   November 8, 2018, 16:58
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I went with mpt instead of openmpi and it is working!

configure --prefix=/u/tjentink/SU2 --exec-prefix=/u/tjentink/SU2 --docdir=/u/tjentink/SU2 CXXFLAGS=-O2 --enable-metis --enable-parmetis --enable-cgns --enable-mpi --with-cc=mpicc --with-cxx=mpicxx --enable-tecio --libdir=/opt/hpe/hpc/mpt/mpt-2.16
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