...the very high failure rates on some WU's and what I would consider high failure rates on most WU's?

Maybe it would be an idea for all of us to put aside our "mine is bigger than yours" ego for a period of time and run all our cards at stock speeds to assess whether "Over Clocking" is causing or is a large part of the cause of high failure rates.

I know a percentage of failures will be caused by machines that are perpetually failing and can't understand why these aren't suspended from the project and an email sent to the account holder explaining the problem. However, we maybe overestimating the amount and effect of these machines on overall failure rates.

In the interests of this project it would be good to at least try and see if we could get the failure rate down below 5% on any WU.

The advantages would be considerable including;

Higher result confidence by the scientists themselves.
Higher realtime throughput.
Higher user satisfaction.

Just something that I think we should be talking about.

Now that the error rates for different work units are posted in the Server Status page, I have to say that I'm totally shocked.

One out of five tasks is failing.

I've had a couple of posts up trying to minimize errors on my home PCs, and if the numbers are true, I'm one of the lucky ones. My error rate is closer to one in twenty.

If we can get 20% more FLOPS just by increasing system stability, then that's gotta be a top priority.

I can't speak for everyone, but my cards have not been overclocked past the factory default, and I'm always found GPUGrid programs to be weirdly fragile.

Power outages will render a WU invalid.
Windows automatic updates will render a WU invalid.
One work unit crashing immediately on one GPU will somehow spill over and the other GPU will show up invalid.
Sometimes work units will restart, showing 8 hours of computing but start at 0% again. After an extended time, those will be invalid.

This doesn't happen with my other projects.

Now that the error rates for different work units are posted in the Server Status page, I have to say that I'm totally shocked.

One out of five tasks is failing.

I've had a couple of posts up trying to minimize errors on my home PCs, and if the numbers are true, I'm one of the lucky ones. My error rate is closer to one in twenty.

If we can get 20% more FLOPS just by increasing system stability, then that's gotta be a top priority.

I can't speak for everyone, but my cards have not been overclocked past the factory default...

...and I'm always found GPUGrid programs to be weirdly fragile.

Power outages will render a WU invalid.

Windows automatic updates will render a WU invalid.

One work unit crashing immediately on one GPU will somehow spill over and the other GPU will show up invalid.

Sometimes work units will restart, showing 8 hours of computing but start at 0% again. After an extended time, those will be invalid.

This doesn't happen with my other projects.

I've had a couple of posts up trying to minimize errors on my home PCs, and if the numbers are true, I'm one of the lucky ones. My error rate is closer to one in twenty.

I'm having similar error rate.

Most of the time when I see a GPUGRID work unit fail it is due to one of the servers crashing. Sometimes it happens when BOINC crashes.

It's not always clear to me why these events occur but I do try to at least cover the basics with the latest updates to prevent further issues.

Latest BIOS, Windows updates, NVIDIA Drivers, BOINC version. Sometimes I run into a problem with the most recent versions but usually it's better.

Don't leave the Windows automatic updates setting on. You can have it set to download the updates but let you choose when to install them.

That way you can schedule a maintenance window to complete your updates, pause BOINC and reboot etc.

What is the easiest way to check all my GPU's and determine which ones have the highest error rates? I would like to see if I can make any additional improvements.

Those who care, usually read this forum and are guided to take proper actions, but there's some who don't. This is a volunteer project, so there's no time & resources to find & warn every single contributor with failing hosts, but everybody's welcome to do that.

I've sent out a few busybody notes to users with 100% error rates encouraging them to check the forums. You know hardware well beyond my abilities, will you keep an eye on the forums over the holidays?

Of about fifteen notes, I got one reply. A contributor was able to fix their problem.

GPUgrid is 1,728 GFLOPS faster for it!

Shame there's no way to get in touch with "Anonymous".