BU WUs seem to fall of the GPU at the end

[Bryan]

Put a file (app_config.xml) in your BU project folder that contains this:

<app_config>
<app>
<name>lineB-sgminer-4.1.153-v2</name>
<max_concurrent>2</max_concurrent>
<gpu_versions>
<gpu_usage>1</gpu_usage>
<cpu_usage>1</cpu_usage>
</gpu_versions>
</app>
</app_config>

Then go into BOINC and under the ADVANCED tab tell it to read config files.

The BOINC scheduler will reserve 1 thread for your GPU.

[Maxwell]

Damn.

Thank you, gentlemen, very much. This is what happens when you're away for a while - things change, and you don't realize it. This is so much easier than an app_info file. Yay!

[Bryan]

Damn.

Thank you, gentlemen, very much. This is what happens when you're away for a while - things change, and you don't realize it. This is so much easier than an app_info file. Yay!

Obviously you've been away for a long time and need retraining .... you referred to me as a gentleman

[Maxwell]

Obviously you've been away for a long time and need retraining .... you referred to me as a gentleman

My bad - I should have known better...

Speaking of which, is there any benefit to running two BU WUs at a time? Or is sticking with one the way to go?

[Bryan]

My bad - I should have known better...

Speaking of which, is there any benefit to running two BU WUs at a time? Or is sticking with one the way to go?

I tried it and it made no difference. That is why the app_config I gave you says max_concurrent of 2. If you are only going to run 1 WU you can change that to "1". If you decide to try running 2 you don't have to give it more CPU. To run 2 change the GPU AND CPU usage to .5.

[Mumps]

I was wondering why he quietly included that in his post. Keep in mind, if the WU's run fast enough, you waste more time waiting to get the next one started than it takes to run one in the first place. So for projects like this with sometimes short run-times, it can be a big improvement in RAC by always having one on the GPU... Best thing would be to monitor for a while and see if you get better RAC than just running a single one. My bet is, for BU, you will. That probably will also lead to less lost cycles if one of the WU's hangs, but the other one doesn't.

[Bryan]

They've raised the cache per machine up to 40 WU now. I guess I've been lucky since I haven't had any WU hangup yet ... knock on wood. I did have all 3 7970s go into 24 hour backoff mode sometime last night and they had run dry. I guess the project was down for a while.

[Maxwell]

Thanks, guys (that better, Bryan?)!

I've set it up to run two on the desktop, and one on laptop. We'll see how they do. And Mumps, that was my exact thinking, so I'm glad you said that.

[STE\/E]

Are you guy's leaving 1 Thread open for BU, I hardly ever have a Wu Hang on 3 7970's ...

[Maxwell]

Are you guy's leaving 1 Thread open for BU, I hardly ever have a Wu Hang on 3 7970's ...

I am, yes. I've noticed this becoming much more of a problem with some of the "newer" projects (Beal, Rioja), since they don't seem to want to let the CPU feed the GPU. Things have been running much more smoothly since I started leaving a thread open, though that's only been a few hours now...