Device Side code is not executed after update of CUDA-Toolkit


I few months ago I updated my CUDA Toolkit from Version 10.1 to 11.3, which lead to some issues with the drivers of my GPU. Thanks to help from the community, I was able to fix is issue in this thread.

However, ever since them I have been experiencing issues whenever I run CUDA code: The Host side code is run as normal, but Device side code is never executed. Even print statements I have added to kernels that should be launched do not output anything. So far, I haven’t been able to figure out what causes this.

I have run deviceQuery, which results in the following output:

./deviceQuery Starting…

CUDA Device Query (Runtime API) version (CUDART static linking)

Detected 1 CUDA Capable device(s)

Device 0: “NVIDIA GeForce GTX 960M”
CUDA Driver Version / Runtime Version 11.4 / 11.3
CUDA Capability Major/Minor version number: 5.0
Total amount of global memory: 4046 MBytes (4242604032 bytes)
(005) Multiprocessors, (128) CUDA Cores/MP: 640 CUDA Cores
GPU Max Clock rate: 1176 MHz (1.18 GHz)
Memory Clock rate: 2505 Mhz
Memory Bus Width: 128-bit
L2 Cache Size: 2097152 bytes
Maximum Texture Dimension Size (x,y,z) 1D=(65536), 2D=(65536, 65536), 3D=(4096, 4096, 4096)
Maximum Layered 1D Texture Size, (num) layers 1D=(16384), 2048 layers
Maximum Layered 2D Texture Size, (num) layers 2D=(16384, 16384), 2048 layers
Total amount of constant memory: 65536 bytes
Total amount of shared memory per block: 49152 bytes
Total shared memory per multiprocessor: 65536 bytes
Total number of registers available per block: 65536
Warp size: 32
Maximum number of threads per multiprocessor: 2048
Maximum number of threads per block: 1024
Max dimension size of a thread block (x,y,z): (1024, 1024, 64)
Max dimension size of a grid size (x,y,z): (2147483647, 65535, 65535)
Maximum memory pitch: 2147483647 bytes
Texture alignment: 512 bytes
Concurrent copy and kernel execution: Yes with 1 copy engine(s)
Run time limit on kernels: Yes
Integrated GPU sharing Host Memory: No
Support host page-locked memory mapping: Yes
Alignment requirement for Surfaces: Yes
Device has ECC support: Disabled
Device supports Unified Addressing (UVA): Yes
Device supports Managed Memory: Yes
Device supports Compute Preemption: No
Supports Cooperative Kernel Launch: No
Supports MultiDevice Co-op Kernel Launch: No
Device PCI Domain ID / Bus ID / location ID: 0 / 1 / 0
Compute Mode:
< Default (multiple host threads can use ::cudaSetDevice() with device simultaneously) >

deviceQuery, CUDA Driver = CUDART, CUDA Driver Version = 11.4, CUDA Runtime Version = 11.3, NumDevs = 1
Result = PASS

I’m grateful for any help. Thank you!

I’d suspect since your cc is 50 which is deprecated in cuda 11, maybe this has to be explicitly set to enable code genration for it on compile

-gencode arch=compute_50,code=sm_50
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