Driver does not support CUDA 11.2 API! Update your nVidia driver! about xmrig-cuda

[SourceCodeDeleted]

I am in the same situtation.

Does the a old version of the API work better? @BobbyBlock

Here is an archive of it.
https://developer.nvidia.com/cuda-11.0-download-archive?target_os=Linux&target_arch=x86_64&target_distro=Ubuntu&target_version=1804&target_type=deblocal

[Spudz76]

Your driver clearly says it supports up to 11.1 (nvidia-smi output)
So, Compile with the toolkit 11.1 not 11.2
Or await/upgrade to a driver that knows 11.2

[zxfrank]

This is my attempt with cuda 11.2...

cmake .. -DCUDA_LIB=/usr/local/cuda-11.2/lib64 -DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda-11.2/bin -DCMAKE_C_COMPILER=$(which gcc-8) -DCMAKE_CXX_COMPILER=$(which g++-8)
-- Found CUDA: /usr/local/cuda-11.2/bin (found suitable version "11.2", minimum required is "8.0") 


;  Valid CUDA Toolkit Map:
;   8.x for Fermi/Kepler          /Maxwell/Pascal,
;   9.x for       Kepler          /Maxwell/Pascal/Volta,
;  10.x for       Kepler          /Maxwell/Pascal/Volta/Turing,
;  11.x for       Kepler (in part)/Maxwell/Pascal/Volta/Turing/Ampere

;Reference https://developer.nvidia.com/cuda-gpus#compute for arch and family name


CMake Error at cmake/CUDA.cmake:71 (message):
  Unsupported CUDA architecture '30' specified.  Use CUDA v10.x maximum,
  Kepler (30) was dropped at v11.
Call Stack (most recent call first):
  CMakeLists.txt:76 (include)


-- Configuring incomplete, errors occurred!
See also "xmrig-cuda/build/CMakeFiles/CMakeOutput.log".
See also "xmrig-cuda/build/CMakeFiles/CMakeError.log".

I don't have much time to spend, I'll try later

[Spudz76]

Do not specify all the CUDA details, only provide the toolkit base location with CUDA_TOOLKIT_ROOT_DIR, the rest is - and should only be - detected by CMake.
My build script:

CC=/usr/bin/gcc-8 CXX=/usr/bin/g++-8 \
 cmake /usr/src/xmrig-cuda \
  -DCMAKE_BUILD_TYPE=Release \
  -DCMAKE_VERBOSE_MAKEFILE=ON \
  -DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda-10.2 \
  -DCUDA_VERBOSE_BUILD=ON \
  -DCUDA_ARCH=30\;52 \

It clearly told you what is wrong:

EDIT: If you don't actually have an arch30 card, then supply the CUDA_ARCH with what card(s) you actually have. Otherwise it will try to add every GPU it knows about which is a waste of time and space.

The main bug is you've put /bin on the end of the actual toolkit root.

[jamsoft]

Could someone upload a compiled 11.2 version?

I've installed the plugin but when I start it always reports that Cuda is disabled. I have a 3090 on the system.

[jamsoft]

Actually, scratch that.

I've got a 3090 with the latest drivers. I've downloaded the 11.1 XRig cuda driver, went through the setup process.

Initially I couldn't get it running. I rebooted, setup the permissions to unblock XRig from the ransomeware policy. Then I removed the config.json file from where XRig.exe lives.

I then executed my batch command I got from my pool homepage and low and behold, CUDA processing kicked in.

So any 30xx card with 11.2 should work fine with the 11.1 Cuda XRig driver.

[strategist922]

@jamsoft
Could you share your compile setting ? thanks in advance.
I have both 3090 and 1080ti, cannot find the correct way to compile the library under linxu
following is my command.

cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_VERBOSE_MAKEFILE=ON -DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda -DCUDA_VERBOSE_BUILD=ON -DCUDA_ARCH=30 -DCMAKE_C_COMPILER=$(which gcc) -DCMAKE_CXX_COMPILER=$(which g++)

[Spudz76]

@strategist922 the -DCUDA_ARCH=30 means you've told it to only compile for Kepler cores (like GTX770) and nothing else. So of course that won't ever work for 1080ti (arch 61) or 3090 (arch 86).

Try with -DCUDA_ARCH=61\;86 and then it will be able to drive those cards.

Also to force compiler use environment var prefixing of CC=$(which gcc) CXX=$(which g++) cmake .. -D(and so on) instead of the CMAKE_C_COMPILER and CMAKE_CXX_COMPILER

My build script for Cuda11.0 and 1060 (arch 61)

CC=/usr/bin/gcc-9 CXX=/usr/bin/g++-9 \
 cmake /usr/src/xmrig-cuda \
  -DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda-11.0 \
  -DCMAKE_BUILD_TYPE=Release \
  -DCMAKE_VERBOSE_MAKEFILE=ON \
  -DCUDA_VERBOSE_BUILD=ON \
  -DCUDA_SHOW_REGISTER=ON \
  -DCUDA_ARCH=61 \

[DeeDeeRanged]

Debian bullseye/testing
Notebook GTX 1050M
Desktop GTX 1070

From the official testing repo:
Nvidia-driver 460.56-1 (plus dependencies or whatever)
nvidia-cuda-toolkit 11.2.1-2
libhwloc-plugins 2.4.1+dfsg-1
libhwloc-contrib-plugins 2.4.1+dfsg-2

git clone https://github.com/xmrig/xmrig-cuda.git
mkdir xmrig-cuda/build && cd xmrig-cuda/build
Changed cmake to:
cmake .. -DCUDA_LIB=/usr/lib/x86_64-linux-gnu/stubs/libcuda.so -DCUDA_TOOLKIT_ROOT_DIR=/usr/lib/nvidia-cuda-toolkit

Only warnings I get are:
/home/user/github/xmrig-cuda/src/RandomX/randomx_cuda.hpp(319): warning: pointless comparison of unsigned integer with zero

/home/user/github/xmrig-cuda/src/cuda_extra.cu: In function ‘void cryptonight_extra_cpu_prepare(nvid_ctx*, uint32_t, const xmrig_cuda::Algorithm&)’:
/home/user/github/xmrig-cuda/src/cuda_extra.cu:415:170: warning: passing argument 5 to ‘restrict’-qualified parameter aliases with argument 6 [-Wrestrict]
415 | CUDA_CHECK_KERNEL(ctx->device_id, cryptonight_extra_gpu_prepareAlgorithm::CN_0<<<grid, block >>>(wsize, ctx->d_input, ctx->inputlen, startNonce,
| ^
/home/user/github/xmrig-cuda/src/cuda_extra.cu: In function ‘int cuda_get_deviceinfo(nvid_ctx*)’:
/home/user/github/xmrig-cuda/src/cuda_extra.cu:571:26: warning: comparison of integer expressions of different signedness: ‘int’ and ‘const size_t’ {aka ‘const long unsigned int’} [-Wsign-compare]
571 | if (ctx->device_blocks > max_blocks) {
| ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~

libxmrig-cuda.so is succesfully build and working on notebook and desktop (not that it makes a lot of difference in hashrate, but it is a nice exercise.

Now if someone can enlighten me on the warnings I'll be a happy camper.

If anyone wants to try
libxmrig-cuda.so.zip

[Spudz76]

I've seen those warnings forever, they are not actually a problem.

[DeeDeeRanged]

I know they are only warnings but it would have been nice to know why specially the "/home/user/github/xmrig-cuda/src/RandomX/randomx_cuda.hpp(319): warning: pointless comparison of unsigned integer with zero" as that seems to take forever when building the libxmrig-cuda.so :-)
Just out of curiousity.

[Spudz76]

nvcc parts just take a while, normally, even if that warning was not there. You can enable options on CMake commandline:

  -DCMAKE_VERBOSE_MAKEFILE=ON \
  -DCUDA_VERBOSE_BUILD=ON \
  -DCUDA_SHOW_REGISTER=ON \

And then it will appear to be doing things while it's taking forever, rather than chewing quietly. I have never run a build without those options so perhaps I don't notice how slow it might be because it has more lively output (looks busy).

[RCTORONTO]

@strategist922 the -DCUDA_ARCH=30 means you've told it to only compile for Kepler cores (like GTX770) and nothing else. So of course that won't ever work for 1080ti (arch 61) or 3090 (arch 86).

Try with -DCUDA_ARCH=61\;86 and then it will be able to drive those cards.

Also to force compiler use environment var prefixing of CC=$(which gcc) CXX=$(which g++) cmake .. -D(and so on) instead of the CMAKE_C_COMPILER and CMAKE_CXX_COMPILER

My build script for Cuda11.0 and 1060 (arch 61)

CC=/usr/bin/gcc-9 CXX=/usr/bin/g++-9 \
 cmake /usr/src/xmrig-cuda \
  -DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda-11.0 \
  -DCMAKE_BUILD_TYPE=Release \
  -DCMAKE_VERBOSE_MAKEFILE=ON \
  -DCUDA_VERBOSE_BUILD=ON \
  -DCUDA_SHOW_REGISTER=ON \
  -DCUDA_ARCH=61 \

if I have a rig only with a specific arch will there be any significant benefit to compiling for just that other than the overall size of the shared object library?

[RCTORONTO]

my comment was for Spudz76

[Spudz76]

Saves compile time mostly, and size, yes.

The default arch string may also not include every GPU variant. I am not too familiar with which, since I have used custom CUDA_ARCH string since day 0.