Is it possible to make the code public available?
In other projects there were some user who made optimized apps for specific cpus which are significant faster

For example Rakesearch:
https://rake.boincfast.ru/rakesearch/forum_thread.php?id=39

Maybe some of them could help here too

So a fellow cruncher named Khalim helped me by uploading the code to github, but it is currently private. The plan was to make this public at some point. Once I finish my latest "improvements" and the code is in a better state, I will make it public. Khalim also helped with some testing scripts that will allow users to fine tune parameters for their specific GPU, and then these parameters can be put in a lookup table to benefit users with the same GPU.

I'm also seeing a few tasks with memory access issues.

Task with error: https://numberfields.asu.edu/NumberFields/result.php?resultid=40204463

This is Nvidia 418.54 with 980m GPU and application version: Get Decic Fields v3.01 (cuda30)
x86_64-pc-linux-gnu

There are successful tasks too on the same system: https://numberfields.asu.edu/NumberFields/result.php?resultid=40234951

Thanks for reporting. It looks like you have a couple tasks with that same error.

I have seen some of these before on other hosts. When I rerun them with cuda-memcheck they finish successfully with no errors. But of course I have a different GPU, so maybe it's something with that particular compute capability. I'm still trying to figure it out. At least it doesn't happen too often.

@lakewik which command did you use to see processes running on each GPU please?