cuStreamWaitValue32 returns CUDA_ERROR_NOT_SUPPORTED

Accelerated Computing CUDA CUDA Programming and Performance
1

Hi,

We are trying to use cuStreamWaitValue32 function. The return value we get when calling the function is CUDA_ERROR_NOT_SUPPORTED. We are using Quadro M6000 GPU with driver version 430.40 and cuda toolkit 10.1.168.

Please advice,
thank you.

2

Support is disabled by default.

You need to enable the feature when the GPU driver loads:

[url]CUDA Driver API :: CUDA Toolkit Documentation

3

Thank you for your answer.

According to the documentation the driver needs to be loaded with the following command:
modprobe nvidia NVreg_EnableStreamMemOPs=1

In our system the driver loads at boot time, can you please tell us if the modprobe command is executed from a script that runs n system load? If the answer is yes, than what is the name and the path to that script? We are working with ubuntu 18.04.

Thanks.

4

The driver may be loaded in a variety of ways “at boot time”. I won’t be able to tell you precisely what is happening on your system.

This article discusses creating a init script to take charge of the loading process:

[url]https://www.resultsovercoffee.com/2011/01/cuda-in-runlevel-3.html[/url]