Denis

Another question, how to define the `macro_particle/cell` number in `picongpu` and what is the default used?

Another problem, trying to run with the std `4.cfg` definition file i got a crash in `openMPI`: ``` Message size 1223060560 bigger than supported by selected transport. Max = 1073741824...

For `openMPI` i used the recommended options ``` # setup openMPI export PMIX_MCA_gds=^ds21 export OMPI_MCA_io=^ompio export OMPI_MCA_mpi_leave_pinned=0 export OMPI_MCA_btl_openib_allow_ib=1 export OMPI_MCA_btl_openib_rdma_pipeline_send_length=100000000 export OMPI_MCA_btl_openib_rdma_pipeline_frag_size=100000000 ```

forget about my last `MPI` noise, the proper `openib` settings needed to be added !

well when i increase the grid siz, i still get the `openMPI` crash: ``` Message size 1223060560 bigger than supported by selected transport. Max = 1073741824 [lxbk1122:24195] *** An error...

I just modified again the famous "system dependent" SLURM variables and now i am able to run `picongpu` with the full `8 GPUs` on one node. It seems to run...

BTW feel free to correct/change things in the template

the `cfg` that trigger the crash in `openMPI` is the following: ``` # Copyright 2013-2021 Axel Huebl, Rene Widera, Felix Schmitt, Franz Poeschel # # This file is part of...

The output of the simulation using the modified `8.cfg` seems to be ok: ``` Running program... PIConGPU: 0.7.0-dev Build-Type: Release Third party: OS: Linux-3.10.0-1160.31.1.el7.x86_64 arch: x86_64 CXX: Clang (13.0.0) CMake:...

OK thanks ! Do you know also if there is some documentation related to this `LWFA` example?