phohenecker/ switch-cuda
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Description
A simple bash script for switching between installed versions of CUDA.
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switch-cuda
Sometimes, it becomes necessary to switch to an earlier version of CUDA in order to run older code on a machine that is actually set up to use the current version of the CUDA toolkit. This is as simple as adjusting the values of a few environment variables, yet it is cumbersome to do manually. Therefore, this repository provides the bash script
switch-cuda.sh, which adjusts the environment to use a specific version of CUDA for the current bash session.
switch-cuda.shhas been written for and tested on Ubuntu 16.04, but is easily adapted for other platforms.
Usage
source switch-cuda.sh [VERSION]
Notice that the script has to be sourced rather than executed, as it performs changes of environment variables that are supposed to persist after the script has finished. If a version number is provided, than all relevant environment variables are adjusted to the required CUDA version (including
PATH,
LD_LIBRARY_PATH,
CUDA_HOME, and
CUDA_ROOT). If no version is provided, however, then the script simply prints all versions of CUDA that have been found on the used machine (in
/usr/local).
Examples
$ source switch-cuda.sh The following CUDA installations have been found (in '/usr/local'): * cuda-8.0 * cuda-9.0 * cuda-9.1
$ source switch-cuda.sh 9.0 Switched to CUDA 9.0.