sm75_support

[aroccon]

Hi,

I am having some issue in running using 2 x RTX5000 and the new version (CUDA 13 and 25.9).
When building cuDecomp, I get the following warning:
SM Arch ('sm_75') not found in 'CMakeFiles/cudecomp.dir/src/cudecomp_kernels_rdc.cu.o'

Then, when running the simulation code (MHIT36), compilation is fine but when autotuning starts, I get this error:
CUDECOMP:ERROR: /home/milton/MHIT36/cuDecomp/include/internal/cudecomp_kernels.cuh:198 CUDA error. (no kernel image is available for execution on the device)

I am using 25.9, cuda 13.0 and 2 x RTX5000 (cc75), the driver is 580.x (with support for cuda 13.0)

[romerojosh]

Hi @aroccon,
The issue here is that CUDA 13 dropped support for SM70, which I removed from the CMake defaults for that CUDA version. SM75 support by the default build was always implicit via compiling for SM70, so dropping SM70 means the default build settings don't support SM75 with CUDA 13.

If you need SM75 support, please specify CUDECOMP_CUDA_CC_LIST=75 when configuring with CMake. Please let me know if that resolves your issue. Thanks!

[aroccon]

Hi @romerojosh,

Thanks for the fast fix.
Yes, by doing this:

-cmake ..
+cmake -DCUDECOMP_CUDA_CC_LIST=75 ..

the issue is solved.

Thanks again..!

[romerojosh]

Excellent and thanks for pointing out the issue! Since CUDA 13.0 does support a minimum of SM75, I will explicitly reinstate support for Turing in the default CUDA 13.0 builds.