# Failed in test CUDA v3.8.0

**URL:** <https://discourse.julialang.org/t/failed-in-test-cuda-v3-8-0/75642>\
**Category:** GPU\
**Created:** [February 2, 2022, 11:08am UTC](https://discourse.julialang.org/t/failed-in-test-cuda-v3-8-0/75642 "2022-02-02T11:08:15Z")\
**Posts on this page:** 9\
**Page:** 1

<div class="post-metadata">

**Author:** ![Jie](https://avatars.discourse-cdn.com/v4/letter/j/3bc359/32.png) [@Jie](https://discourse.julialang.org/u/Jie)\
**Post date:** [February 2, 2022, 11:08am UTC](https://discourse.julialang.org/t/failed-in-test-cuda-v3-8-0/75642/1 "2022-02-02T11:08:16Z")

</div>

I have add CUDA. When I test CUDA, it failed

Testing Running tests…  
┌ Info: System information:  
│ CUDA toolkit 11.6, artifact installation  
│ NVIDIA driver 470.82.1, for CUDA 11.4  
│ CUDA driver 11.6  
│  
│ Libraries:  
│ - CUBLAS: 11.8.1  
│ - CURAND: 10.2.9  
│ - CUFFT: 10.7.0  
│ - CUSOLVER: 11.3.2  
│ - CUSPARSE: 11.7.1  
│ - CUPTI: 16.0.0  
│ - NVML: 11.0.0+470.82.1  
│ - CUDNN: 8.30.2 (for CUDA 11.5.0)  
│ - CUTENSOR: 1.4.0 (for CUDA 11.5.0)  
│  
│ Toolchain:  
│ - Julia: 1.7.1  
│ - LLVM: 12.0.1  
│ - PTX ISA support: 3.2, 4.0, 4.1, 4.2, 4.3, 5.0, 6.0, 6.1, 6.3, 6.4, 6.5, 7.0  
│ - Device capability support: sm\_35, sm\_37, sm\_50, sm\_52, sm\_53, sm\_60, sm\_61, sm\_62, sm\_70, sm\_72, sm\_75, sm\_80  
│  
│ 1 device:  
└ 0: Tesla K20c (sm\_35, 4.442 GiB / 4.633 GiB available)  
ERROR: LoadError: CUDA error: unknown error (code 999, ERROR\_UNKNOWN)  
Stacktrace:  
[1] throw\_api\_error(res::CUDA.cudaError\_enum)  
@ CUDA ~/.julia/packages/CUDA/bki2w/lib/cudadrv/error.jl:91  
[2] macro expansion  
@ ~/.julia/packages/CUDA/bki2w/lib/cudadrv/error.jl:101 [inlined]  
[3] cuDevicePrimaryCtxRetain  
@ ~/.julia/packages/CUDA/bki2w/lib/utils/call.jl:26 [inlined]  
[4] CuContext  
@ ~/.julia/packages/CUDA/bki2w/lib/cudadrv/context.jl:55 [inlined]  
[5] context(dev::CuDevice)  
@ CUDA ~/.julia/packages/CUDA/bki2w/lib/cudadrv/state.jl:222  
[6] device!  
@ ~/.julia/packages/CUDA/bki2w/lib/cudadrv/state.jl:256 [inlined]  
[7] device!  
@ ~/.julia/packages/CUDA/bki2w/lib/cudadrv/state.jl:244 [inlined]  
[8] top-level scope  
@ ~/.julia/packages/CUDA/bki2w/test/runtests.jl:136  
[9] include(fname::String)  
@ Base.MainInclude ./client.jl:451  
[10] top-level scope  
@ none:6  
in expression starting at /home/gpus/.julia/packages/CUDA/bki2w/test/runtests.jl:127  
ERROR: Package CUDA errored during testing

I used MATLAB to test GPU, and it success.  
p.s. When I use CUDA 3.5. and GPU also works

---

<div class="post-metadata">

**Author:** ![maleadt](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/maleadt/32/10097_2.png) [@maleadt](https://discourse.julialang.org/u/maleadt)\
**Post date:** [February 7, 2022, 9:53am UTC](https://discourse.julialang.org/t/failed-in-test-cuda-v3-8-0/75642/2 "2022-02-07T09:53:43Z")

</div>

> [@Jie](#):
>
> ERROR: LoadError: CUDA error: unknown error (code 999, ERROR\_UNKNOWN)

This generally means an issue with your driver, and not CUDA.jl. Unless of course you say it didn’t occur with CUDA.jl 3.5, but does with CUDA.jl 3.6 or higher. Can you confirm that, and/or try to narrow down which exact version introduced the failure?

---

<div class="post-metadata">

**Author:** ![Jie](https://avatars.discourse-cdn.com/v4/letter/j/3bc359/32.png) [@Jie](https://discourse.julialang.org/u/Jie)\
**Post date:** [February 7, 2022, 11:49am UTC](https://discourse.julialang.org/t/failed-in-test-cuda-v3-8-0/75642/3 "2022-02-07T11:49:40Z")

</div>

Ok， I test CUDA@3.6.0， it works. Then I rm CUDA and add CUDA@3.7.0, it does not work.  
thanks!

---

<div class="post-metadata">

**Author:** ![maleadt](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/maleadt/32/10097_2.png) [@maleadt](https://discourse.julialang.org/u/maleadt)\
**Post date:** [February 7, 2022, 11:52am UTC](https://discourse.julialang.org/t/failed-in-test-cuda-v3-8-0/75642/4 "2022-02-07T11:52:24Z")

</div>

Can you bisect even further? If you clone the CUDA.jl repository, you can do a `git bisect` and run `julia --project -e 'using Pkg; Pkg.test()'` at every step.

---

<div class="post-metadata">

**Author:** ![Jie](https://avatars.discourse-cdn.com/v4/letter/j/3bc359/32.png) [@Jie](https://discourse.julialang.org/u/Jie)\
**Post date:** [February 7, 2022, 12:13pm UTC](https://discourse.julialang.org/t/failed-in-test-cuda-v3-8-0/75642/5 "2022-02-07T12:13:46Z")

</div>

Sorry. I am not very familiar with git and we can not git something from [github.com](http://github.com) directly. I will try. Thanks, Best wishes!

---

<div class="post-metadata">

**Author:** ![maleadt](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/maleadt/32/10097_2.png) [@maleadt](https://discourse.julialang.org/u/maleadt)\
**Post date:** [February 7, 2022, 12:17pm UTC](https://discourse.julialang.org/t/failed-in-test-cuda-v3-8-0/75642/6 "2022-02-07T12:17:22Z")

</div>

You start by cloning CUDA.jl from GitHub and working from that directory:

```julia
git clone https://github.com/JuliaGPU/CUDA.jl/
cd CUDA.jl
git bisect start
git checkout v3.7.0
git bisect bad
git checkout v3.6.0
git bisect good

```

(spelling out the commands here for clarity, I know there’s shortcuts)

At that point, `git` will drop you at specific points in the repository’s history. You then run `julia --project -e 'using Pkg; Pkg.test()'`, and depending on whether that fails or succeeds you execute `git bisect bad` or `git bisect good`. After 4 steps, `git` will tell you which commit is to blame.

---

<div class="post-metadata">

**Author:** ![Jie](https://avatars.discourse-cdn.com/v4/letter/j/3bc359/32.png) [@Jie](https://discourse.julialang.org/u/Jie)\
**Post date:** [February 7, 2022, 1:14pm UTC](https://discourse.julialang.org/t/failed-in-test-cuda-v3-8-0/75642/7 "2022-02-07T13:14:54Z")

</div>

HEAD is now at 92f0dce6 Bump version.  
gpus@gpus-ESC700-159:~/Downloads/CUDA.jl$ git bisect bad  
gpus@gpus-ESC700-159:~/Downloads/CUDA.jl$ git checkout v3.6.0  
Previous HEAD position was 92f0dce6 Bump version.  
HEAD is now at 2a6bfa6c Merge pull request #1288 from JuliaGPU/tb/shared\_isbits  
gpus@gpus-ESC700-159:~/Downloads/CUDA.jl$ git bisect good  
Bisecting: 20 revisions left to test after this (roughly 4 steps)  
[db6170c4d8388f01088b5fe49c6ab3df567a8cfe] Try running CI with the package server enabled.

---

<div class="post-metadata">

**Author:** ![maleadt](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/maleadt/32/10097_2.png) [@maleadt](https://discourse.julialang.org/u/maleadt)\
**Post date:** [February 7, 2022, 1:16pm UTC](https://discourse.julialang.org/t/failed-in-test-cuda-v3-8-0/75642/8 "2022-02-07T13:16:03Z")

</div>

> [@Jie](#):
>
> Bisecting: 20 revisions left to test after this (roughly 4 steps)

Now you have to actually test, see the last paragraph of my previous post.

---

<div class="post-metadata">

**Author:** ![Jie](https://avatars.discourse-cdn.com/v4/letter/j/3bc359/32.png) [@Jie](https://discourse.julialang.org/u/Jie)\
**Post date:** [February 7, 2022, 1:17pm UTC](https://discourse.julialang.org/t/failed-in-test-cuda-v3-8-0/75642/9 "2022-02-07T13:17:13Z")

</div>

thank you very much!