vim switch-cuda.sh

#!/usr/bin/env bash# Copyright (c) 2018 Patrick Hohenecker## Permission is hereby granted, free of charge, to any person obtaining a copy# of this software and associated documentation files (the "Software"), to deal# in the Software without restriction, including without limitation the rights# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell# copies of the Software, and to permit persons to whom the Software is# furnished to do so, subject to the following conditions:## The above copyright notice and this permission notice shall be included in all# copies or substantial portions of the Software.## THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE# SOFTWARE.# author: Patrick Hohenecker <mail@paho.at># version: 2018.1# date: May 15, 2018set -e# ensure that the script has been sourced rather than just executedif [[ "${ BASH_SOURCE[0]}" = "${0}" ]]; thenecho "Please use 'source' to execute switch-cuda.sh!"exit 1fiINSTALL_FOLDER="/usr/local" # the location to look for CUDA installations atTARGET_VERSION=${1} # the target CUDA version to switch to (if provided)# if no version to switch to has been provided, then just print all available CUDA installationsif [[ -z ${TARGET_VERSION} ]]; thenecho "The following CUDA installations have been found (in '${INSTALL_FOLDER}'):"ls -l "${INSTALL_FOLDER}" | egrep -o "cuda-[0-9]+\\.[0-9]+$" | while read -r line; doecho "* ${line}"doneset +ereturn# otherwise, check whether there is an installation of the requested CUDA versionelif [[ ! -d "${INSTALL_FOLDER}/cuda-${TARGET_VERSION}" ]]; thenecho "No installation of CUDA ${TARGET_VERSION} has been found!"set +ereturnfi# the path of the installation to usecuda_path="${INSTALL_FOLDER}/cuda-${TARGET_VERSION}"# filter out those CUDA entries from the PATH that are not needed anymorepath_elements=(${ PATH//:/ })new_path="${cuda_path}/bin"for p in "${path_elements[@]}"; doif [[ ! ${p} =~ ^${INSTALL_FOLDER}/cuda ]]; thennew_path="${new_path}:${p}"fidone# filter out those CUDA entries from the LD_LIBRARY_PATH that are not needed anymoreld_path_elements=(${LD_LIBRARY_PATH//:/ })new_ld_path="${cuda_path}/lib64:${cuda_path}/extras/CUPTI/lib64"for p in "${ld_path_elements[@]}"; doif [[ ! ${p} =~ ^${INSTALL_FOLDER}/cuda ]]; thennew_ld_path="${new_ld_path}:${p}"fidone# update environment variablesexport CUDA_HOME="${cuda_path}"export CUDA_ROOT="${cuda_path}"export LD_LIBRARY_PATH="${new_ld_path}"#export PATH="${new_path}"export PATH="${ PATH}:${new_path}"echo "Switched to CUDA ${TARGET_VERSION}."set +ereturn

使用方法

查看系统有几个cuda版本source switch-cuda.sh 切换cudasource switch-cuda.sh 9.0source switch-cuda.sh cuda版本

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