Reply To: Multi GPUs Calculation
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June 27, 2023 at 10:34 am
#7602
Adrian
Keymaster
Ok, this looks as if the wrong MPI version is selected for compilation. Likely you will get a compiler / linker error if you remove opempi-bin and libopenmpi-dev.
Does ompi_info --parsable -l 9 --all | grep mpi_built_with_cuda_support:value
return true (as per the user guide)? Did you modify the PATH accordingly?
I would suggest to make sure that the correct MPI version is set and use the flags as provided by mpic++ -showme
. (Or you can exactly follow the user guide / tech report).