How to know which gcc version to choose when compiling pytorch from source?
I am working on installing PyTorch from source but am unsure about the specific dependency versions to use for the version of PyTorch I want to install. 

In particular, I noticed performance variations depending on the gcc version I use to compile PyTorch. Which compiler should I be using to get the best PyTorch performance?

Tensorflow doc provides such useful information. They call it "Tested build configurations":
https://www.tensorflow.org/install/source#tested_build_configurations.

The README.md has instructions to build from source.

If you are installing from source, you will need a C++14 compiler. Also, we highly recommend installing an Anaconda environment. You will get a high-quality BLAS library (MKL) and you get controlled dependency versions regardless of your Linux distro.

Once you have Anaconda installed, here are the instructions.

If you want to compile with CUDA support, install


NVIDIA CUDA 9 or above
NVIDIA cuDNN v7 or above
Compiler compatible with CUDA


If you want to disable CUDA support, export environment variable USE_CUDA=0. Other potentially useful environment variables may be found in setup.py.

If you are building for NVIDIA's Jetson platforms (Jetson Nano, TX1, TX2, AGX Xavier), Instructions to install PyTorch for Jetson Nano are available here

You can found Latest, official Compiler requirements here


