See https://github.com/foss-for-synopsys-dwc-arc-processors/synopsys-caffe/blob/development/README.md#installation for the installation instructions.
Check https://github.com/foss-for-synopsys-dwc-arc-processors/synopsys-caffe/blob/master/scripts/ubuntu_python3_build_caffe_guide.md if you need to build the full environment on a Ubuntu machine.