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cuda10 2080Ti mutil_gpu solutions #301

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zyxcambridge opened this issue Jul 24, 2019 · 0 comments

zyxcambridge commented Jul 24, 2019 •

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horovod
HOROVOD_GPU_ALLREDUCE=NCCL pip install --no-cache-dir horovod
Open MPI
3.0.4 no 2.1.1
wget http://www.open-mpi.org/software/ompi/v2.1/downloads/openmpi-2.1.1.tar.gz
tar xzvf openmpi-2.1.1.tar.gz
WORKDIR openmpi-2.1.1
./configure
make -j48
sudo make install
sudo ldconfig
which mpicc
mpicc -show
which mpiexec
mpiexec --version
mkdir OpenMpi
wget http://www.open-mpi.org/papers/workshop-2006/hello.c
mpicc hello.c -o hello
mpirun --allow-run-as-root -np 4 ./hello
3.eno1
options="-np ${nb_gpus} -H localhost:${nb_gpus} -bind-to none -map-by slot
-x NCCL_DEBUG=INFO -x NCCL_SOCKET_IFNAME=eno1 -x NCCL_IB_DISABLE=1
-x LD_LIBRARY_PATH --mca btl_tcp_if_include eth1

4.gcc 4.9 g++ 4.9 ;others not ok

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