How to do downgrading cuda version

2
votes

I'm currently using the cuda version 4.2 but I need to change it to 3.1. Is it possible to uninstall the current version (ver 4.2) and then install the previous version (ver 3.1) ?

EDIT : Please refer that my os system is linux ubuntu 10.04 64bit.

EDIT : I found how to get the version of 3.1. I have to send e-mail to "[email protected]" to request this old version. Now, please let me know how to uninstall 4.2 then install 3.1.

EDIT : I downloaded cuda 3.1 by request to nvidia, then installed toolkit and SDK. When install the cuda 3.1 toolkit there comes the question about uninstallation of current version. For SDK, we can just delete ~/NVIDIA_GPU_Computing_SDK directory directly for the uninstallation of it. After deleting I could install the cuda 3.1 SDK. I'm done, thanks all.

2
cuda
Are you talking about the development tool or the nVidia graphic driver that includes cuda? - Parallelis
I mean the development environment, such as toolkit/driver/SDK. It is because I'm setting one gpu simulator up on my linux system, but this simulator does not support 4.x and higher version. It says the version of 3.1 is highly recommended. - user1292251
You can download older toolkits from the archive page. You can find additional instructions in this SO answer. - Robert Crovella

2 Answers

0
votes

Yes, you can easily downgrade the CUDA version provided you aren't using the CUDA toolkit functions which are only present in version greater than 3.1.

Also you would have to modify your project settings to use CUDA Rules version 3.1.

0
votes

WARNING:

ubuntu 12.04 upgraded to 12.10 with standard cuda 4.2 installed; in the process of downgrading to CUDA 4.0 using NVIDA installer resulted the !! COMPLETE REMOVAL !! /usr/bin/

probably is a good idea to choose "NO" when removing existing CUDA installation is offered; though I never got to try it as only already loaded firefox remained functional.