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Reply To: Multiple GPU on HPC Calculation Signal: Segmentation fault (11)

OpenLB – Open Source Lattice Boltzmann Code Forums on OpenLB General Topics Multiple GPU on HPC Calculation Signal: Segmentation fault (11) Reply To: Multiple GPU on HPC Calculation Signal: Segmentation fault (11)

#8761
Yuji
Participant

Dear @aseidler
could you try mpirun with ” -mca btl_smcuda_use_cuda_ipc 0″? for example $mpirun -np 2 –mca btl_smcuda_use_cuda_ipc 0 bash -c ‘export CUDA_VISIBLE_DEVICES=${OMPI_COMM_WORLD_LOCAL_RANK}; ./cavity3d’

we disscused similar topic in https://www.openlb.net/forum/topic/multi-gpus-calculation/

  • This reply was modified 1 week, 5 days ago by Yuji.