Hi,

You said OpenMPI 4.0.1 but your cmake log says
 > -- Found MPI_C: /usr/lib64/openmpi/lib/libmpi.so (found version "3.1")

Best regards,

Takanori Nakane

On 2020/06/01 14:01, Guillaume Gaullier wrote:
> Hello CCPEM,
> 
> I installed RELION 3.0 (commit 5a8f82785e53bc8ed271b096c3f7afff09e5e82f ) and also the latest in branch 3.1 (commit 5997001f75abd0f1fa135ee25e04f92c855e5e29 ). They compile and install fine on a fresh CentOS 8.1, but I get MPI errors at runtime with both versions of RELION. I attached a run.err obtained with RELION 3.1 while trying to go through the tutorial.
> 
> I did read the FAQ about MPI runtime errors ( https://www3.mrc-lmb.cam.ac.uk/relion/index.php/FAQs#Program_crashes_showing_MPI_runtime_errors ), and I am pretty sure I compiled and ran with the same MPI, because I only have one version installed. It is OpenMPI 4.0.1, installed with the distribution’s package manager. I also believe the environment is correctly set up both during compilation and at run time, because I use the environment modules system and I use the modulefile provided by the system installation of OpenMPI. I also tested the mpirun command with unrelated programs, and it worked as expected.
> 
> So, as far as I can tell, this looks like either a bug in RELION or an incompatibility with this version of OpenMPI (if so, it would be very helpful to list compatible versions of OpenMPI on the wiki).
> 
> I would be happy to be told I messed something up during installation and there is an easy fix, so I also attached the output of my fresh cmake just in case it would point to a problem with my installation.
> 
> Can someone help me with this issue?
> 
> Thank you in advance,
> 
> Guillaume
> 
> 
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