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nemo: drop unnecessary OMPI_MCA_* Dockerfile ENVs per AWS NCCL/EFA review #1078

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Merged
KeitaW merged 1 commit into from
May 6, 2026
Merged

nemo: drop unnecessary OMPI_MCA_* Dockerfile ENVs per AWS NCCL/EFA review #1078

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6 changes: 1 addition & 5 deletions 3.test_cases/megatron/nemo/Dockerfile
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Original file line number Diff line number Diff line change
Expand Up @@ -122,11 +122,7 @@ RUN mv $OPEN_MPI_PATH/bin/mpirun $OPEN_MPI_PATH/bin/mpirun.real \
######################
RUN pip install transformers==${TRANSFORMERS_VERSION} sentencepiece python-etcd

## Set Open MPI variables to exclude network interface and conduit.
ENV OMPI_MCA_pml=^cm,ucx \
OMPI_MCA_btl=tcp,self \
OMPI_MCA_btl_tcp_if_exclude=lo,docker0,veth_def_agent\
OPAL_PREFIX=/opt/amazon/openmpi \
ENV OPAL_PREFIX=/opt/amazon/openmpi \
NCCL_SOCKET_IFNAME=^docker,lo,veth

## Turn off PMIx Error https://github.com/open-mpi/ompi/issues/7516
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6 changes: 1 addition & 5 deletions 3.test_cases/megatron/nemo/kubernetes/Dockerfile
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Expand Up @@ -125,11 +125,7 @@ RUN mv $OPEN_MPI_PATH/bin/mpirun $OPEN_MPI_PATH/bin/mpirun.real \
######################
RUN pip install transformers==${TRANSFORMERS_VERSION} sentencepiece python-etcd

## Set Open MPI variables to exclude network interface and conduit.
ENV OMPI_MCA_pml=^cm,ucx \
OMPI_MCA_btl=tcp,self \
OMPI_MCA_btl_tcp_if_exclude=lo,docker0,veth_def_agent\
OPAL_PREFIX=/opt/amazon/openmpi \
ENV OPAL_PREFIX=/opt/amazon/openmpi \
NCCL_SOCKET_IFNAME=^docker,lo,veth

## Turn off PMIx Error https://github.com/open-mpi/ompi/issues/7516
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