Hi Gianni, >From what I know, the CUDA version shown by *nvidia-smi *is the *maximum *CUDA version supported by the current driver. It looks like it does not support the CUDA installation you have (I get flashbacks from our previous posts...). About the error in DEME, it shows the program failed at the first GPU call, when it tried to detect the number of devices the system has. So indeed, there is a high chance that the driver does not work.
I know managing the environment can be frustrating, but if the code ran well before, and you got this after the driver update, then I'd definitely undo the driver update, and see if that can undo the damage and revert the code to a runnable state. After that, I'd start experimenting if I can update the driver to a more preferrable version that supports CUDA 12.6. Thank you, Ruochun On Sunday, January 19, 2025 at 1:32:03 AM UTC+8 [email protected] wrote: > Hi Ruochun and Dario, > > thank you for your answers. > > Now I have solved the problem with my driver and I have the version > 550.142 correctly working. However, I am not able to run DEM-Engine scripts > anymore since I always have the following problem: > > [image: Screenshot From 2025-01-18 18-26-11.png] > > I have also tried to compile again from source DEM-Engine but the problem > persists. I attach also the cmakecache in case it helps. I am using GNU > 11.5 and nvidia-smi and nvcc --version give the following correct outputs: > [image: Screenshot From 2025-01-18 18-30-05.png] > > Thank you for your kindness. > > Gianni > Il giorno sabato 11 gennaio 2025 alle 11:17:16 UTC+1 [email protected] > ha scritto: > >> Just a side note: I saw that you enabled Multicore and you are playing >> with CUDA; please mind that USE_MULTICORE_CUDA is currently bugged, at >> least on Win. >> I have the fix but not yet pushed so if you are trying things around do >> not get mad with that. >> >> Il giorno sabato 11 gennaio 2025 alle 04:21:47 UTC+1 Ruochun Zhang ha >> scritto: >> >>> Hi Gianni, >>> >>> For building this Chrono-DEME co-simulation project, it probably doesn't >>> matter. You could try if you can run the smallest demo in it which is the >>> ball drop co-simulation version. If it runs, everything should be fine. >>> >>> Thank you, >>> Ruochun >>> >>> On Saturday, January 11, 2025 at 4:22:05 AM UTC+8 [email protected] >>> wrote: >>> >>>> Hi Ruochun, >>>> >>>> I found that the power cap problem for nvidia GPU has been widely >>>> discussed and reported. I found out that one possible solution could be >>>> downgrading the driver to 525 version, which is still compatible with both >>>> CUDA 12.3 and 12.6 and capable of allowing the user to set the power cap >>>> as >>>> desired. >>>> >>>> Another question that came up to me while compiling a project with >>>> chrono and DEME is the following one. As you can see in the image, cmake >>>> detects the CUDA version 12.3 which satisfies Multicore. However, I know >>>> from the instructions that DEME does not work well with this version. >>>> Thus, >>>> which CUDA version do you advice to specify to cmake? I tried with CUDA >>>> 12.3 and everything seems to work at a first glance but I want to be sure >>>> of what I am doing. >>>> [image: Screenshot From 2025-01-10 21-11-26.png] >>>> >>>> Thank you again. >>>> >>>> Gianni >>>> Il giorno venerdì 10 gennaio 2025 alle 00:10:25 UTC+1 Ruochun Zhang ha >>>> scritto: >>>> >>>>> Hi Gianni, >>>>> >>>>> That's good to know. I'd like to note that depending on the model of >>>>> your GPU and the problem you are running, it could be natural that the >>>>> actual consumption is a bit far from the power limit. But as you said, it >>>>> could also be related to the driver. DEME does not touch the driver so I >>>>> would say if you don't update the driver out of the CUDA installation >>>>> supported range, then it should be fine. >>>>> >>>>> Thank you, >>>>> Ruochun >>>>> >>>>> On Friday, January 10, 2025 at 6:28:54 AM UTC+8 [email protected] >>>>> wrote: >>>>> >>>>>> Hi Ruochun, >>>>>> thank you again now everything is working fine! >>>>>> However, I have another question related to the nvidia driver. For >>>>>> now, I have the 560 version and I have noticed a power cap on my GPU of >>>>>> 35W >>>>>> against the 110W limit specified by the manufacturer. Looking in some >>>>>> forums I understood that the problem may be related to the driver >>>>>> itself, >>>>>> therefore I want to update it. Do you know if this will cause any >>>>>> problem >>>>>> to DEME? >>>>>> >>>>>> Thank you again. >>>>>> >>>>>> Gianni >>>>>> >>>>>> Il giorno giovedì 9 gennaio 2025 alle 11:54:59 UTC+1 Ruochun Zhang ha >>>>>> scritto: >>>>>> >>>>>>> Hi Gianni, >>>>>>> >>>>>>> The error you saw is about an outdated API. *UpdateStepSize *now >>>>>>> needs a number as an argument. I am surprised I didn't spot it when I >>>>>>> tried >>>>>>> it. It's certainly not a big problem though: I pushed a new version of >>>>>>> chrono-project, could you please do a pull and rebuild the project? >>>>>>> Thank >>>>>>> you for the catch and for testing it! >>>>>>> >>>>>>> Ruochun >>>>>>> >>>>>>> On Thursday, January 9, 2025 at 8:33:31 AM UTC+8 [email protected] >>>>>>> wrote: >>>>>>> >>>>>>>> Hi Ruochun, >>>>>>>> >>>>>>>> first of all thank you for your patience. I did more attempts and >>>>>>>> in the end, I saw that the problem was due to the fact that I cloned >>>>>>>> the >>>>>>>> main branch of chrono-projects. Instead, if I clone the feature/DEME >>>>>>>> branch >>>>>>>> the prompt "ENABLE_DEME_TESTS" appears and I can link DEME against >>>>>>>> Chrono. >>>>>>>> However, while building the following errors appear. >>>>>>>> >>>>>>>> [image: Screenshot From 2025-01-09 01-27-19.png] >>>>>>>> >>>>>>>> I left as active only the option to compile the scripts where DEME >>>>>>>> and Chrono are used together since in Chrono I have only Core, Vehicle >>>>>>>> and >>>>>>>> Multicore installed so I didn't want to trigger some kind of error >>>>>>>> related >>>>>>>> to other missing modules. To be clearer, these are the screenshots >>>>>>>> showing >>>>>>>> CMAKE settings and outputs during configuration. >>>>>>>> >>>>>>>> [image: Screenshot From 2025-01-09 01-20-39.png] >>>>>>>> >>>>>>>> [image: Screenshot From 2025-01-09 01-21-43.png] >>>>>>>> >>>>>>>> [image: Screenshot From 2025-01-09 01-21-57.png] >>>>>>>> >>>>>>>> [image: Screenshot From 2025-01-09 01-22-09.png] >>>>>>>> >>>>>>>> [image: Screenshot From 2025-01-09 01-22-36.png] >>>>>>>> >>>>>>>> Thank you again. >>>>>>>> >>>>>>>> Gianni >>>>>>>> >>>>>>>> Il giorno mercoledì 8 gennaio 2025 alle 20:53:17 UTC+1 Ruochun >>>>>>>> Zhang ha scritto: >>>>>>>> >>>>>>>>> Hi Gianni, >>>>>>>>> >>>>>>>>> Can you post a screenshot of the Cmake UI after you >>>>>>>>> "ENABLE_PROJECTS" and re-generate? If DEME-DIR is not shown, I'd like >>>>>>>>> to >>>>>>>>> know what is shown. Besides, if there is any warning or error in the >>>>>>>>> process, please show them too. >>>>>>>>> >>>>>>>>> Ruochun >>>>>>>>> >>>>>>>>> On Thursday, January 9, 2025 at 2:09:38 AM UTC+8 >>>>>>>>> [email protected] wrote: >>>>>>>>> >>>>>>>>>> Hi, >>>>>>>>>> I am trying to compile DEM-Engine as a Chrono library on my pc >>>>>>>>>> running a Linux system on Ubuntu 24.10. I have already compiled both >>>>>>>>>> Project Chrono (with CUDA toolkit 12.3) and DEM-Engine (with CUDA >>>>>>>>>> toolkit >>>>>>>>>> 12.6). I am following the instructions given on the website to >>>>>>>>>> complete >>>>>>>>>> this passage but I am stuck at the point where I have to set the >>>>>>>>>> field >>>>>>>>>> DEME-DIR. In fact, this field does not appear even though I have put >>>>>>>>>> "ENABLE_PROJECTS" to ON therefore I am unable to link DEM-Engine >>>>>>>>>> with >>>>>>>>>> Chrono. >>>>>>>>>> >>>>>>>>>> Could you please give me some guidance about how to resolve the >>>>>>>>>> problem? >>>>>>>>>> Plus, do I need CUDA 12.3 or 12.6 to complete this process? >>>>>>>>>> >>>>>>>>>> Thank you in advance for your assistance and kindness. >>>>>>>>>> >>>>>>>>>> Gianni >>>>>>>>>> >>>>>>>>> -- You received this message because you are subscribed to the Google Groups "ProjectChrono" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/projectchrono/91bd07c8-076b-471a-9691-bf1e43ca8763n%40googlegroups.com.
