The server will be running in the foreseeable future. It hosts the amicable numbers database, so it's not going away just because the project ended.

Azmodes gave me the text to his app_config.xml. This is what I currently have it set to. I'm trying to find out what the relationship is between run time and CPU time, since running only one GPU task gives me lower average run times and CPU times overall, but running four GPU tasks gives me way higher average run times and slightly higher CPU times. Ideally, it'd just be (single GPU tasks)*4=each GPU task total run time, and that'd be it. In other words, My single GPU task is 247 sec run time, 82 sec GPU time. My four GPU tasks going simultaneously should just be 984 seconds per task; it's not though, it's an average of 1435 seconds run time, 110 seconds GPU time. So that seems like a drop in performance to me. Should I go back to just one GPU task at a time? Is there any benefit to crunching multiple tasks at a time on a single GPU?

<app_config>
        <app>
        <name>amicable_10_21</name>
                <gpu_versions>
                        <gpu_usage>0.25</gpu_usage>
                        <cpu_usage>1</cpu_usage>
                </gpu_versions>
        </app>
</app_config>