Yinglei Zhang YingleiZhang
YingleiZhang
/ NCCL debug info on multiple node:
Created
April 9, 2020 04:05
Training on two GPU nodes slower than one node.
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| ip-10-0-42-19:13243:13243 [2] NCCL INFO Bootstrap : Using [0]eth0:10.0.42.19<0> | |
| ip-10-0-42-19:13282:13282 [7] NCCL INFO Bootstrap : Using [0]eth0:10.0.42.19<0> | |
| ip-10-0-42-19:13243:13243 [2] NCCL INFO NET/Plugin : No plugin found (libnccl-net.so), using internal implementation | |
| ip-10-0-42-19:13282:13282 [7] NCCL INFO NET/Plugin : No plugin found (libnccl-net.so), using internal implementation | |
| ip-10-0-42-19:13243:13243 [2] misc/ibvwrap.cc:63 NCCL WARN Failed to open libibverbs.so[.1] | |
| ip-10-0-42-19:13282:13282 [7] misc/ibvwrap.cc:63 NCCL WARN Failed to open libibverbs.so[.1] | |
| ip-10-0-42-19:13282:13282 [7] NCCL INFO NET/Socket : Using [0]eth0:10.0.42.19<0> | |
| ip-10-0-42-19:13243:13243 [2] NCCL INFO NET/Socket : Using [0]eth0:10.0.42.19<0> |
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| -- ******** Summary ******** | |
| -- General: | |
| -- CMake version : 3.14.5 | |
| -- CMake command : /home/yingleiz/workspace/PyTorchWS/env/CMake-3.14.x/runtime/bin/cmake | |
| -- System : Linux | |
| -- C++ compiler : /home/yingleiz/workspace/PyTorchWS/env/CFlags-1.0/runtime/bin/x86_64-unknown-linux-gnu-g++ | |
| -- C++ compiler id : GNU | |
| -- C++ compiler version : 4.9.4 | |
| -- BLAS : MKL | |
| -- CXX flags : -I/home/yingleiz/workspace/PyTorchWS/build/PyTorch/PyTorch-1.4.x/AL2012/DEV.STD.PTHREAD/build/private/tmp/brazil-path/build.libfarm/include -std=c++11 -I/home/yingleiz/brazil-pkg-cache/packages/Python-numpy/Python-numpy-1.x.33351.0/AL2012/DEV.STD.PTHREAD/build/lib/python3.6/site-packages/numpy/core/include/ -Wno-deprecated -fvisibility-inlines-hidden -fopenmp -DUSE_QNNPACK -DUSE_PYTORCH_QNNPACK -O2 -fPIC -Wno-narrowing -Wall -Wextra -Wno-missing-field-initializers -Wno-type-limits -Wno-array-bounds -Wno-unknown-pragmas -Wno-sign-compare -Wno-unused-paramete |