Posts by Aurimas

1) Message boards : Number crunching : Ways to opt out from Python projects (Message 102762) Posted 20 Sep 2021 by Aurimas Post: Hello, I was a little bit delighted, when Rosetta started to use VirtualBox in some projects. Many other project are using it for a while. But also many users not want to use projects with VirtualBox, they slow down computer, it is not possible to adjust CPU temperature with TThrottle etc. So I was delighted, when I was not able to find any selection in Rosetta preferences to disable projects with VirtualBox. Here is no way to choose Rosetta applications, which I want to run. I don't want to opt out from Rosetta, so I tried to search some workarounds. 1. It is possible to uninstall VirtualBox form PC. But I need it to some other BOINC projects and for other activities. 2. It is possible to disable VirtualBox in BOINC. I created cc_config.xml file in BOINC data directory with: <cc_config> <options> <dont_use_vbox>1</dont_use_vbox> </options> </cc_config> But this way also not solved my problem. It is not possible to use VirtualBox for other projects. 3. It is possible to reduce count of tasks running in one time. I created app_config.xml in BOINC data / Rosetta data directory with: <app_config> <app> <name>rosetta_python_projects</name> <max_concurrent>1</max_concurrent> </app> </app_config>. Now I am running 7 normal BOINC tasks and 1 with VirtualBox in one time. It is small problem with queue of VirtualBox tasks, but it is best way which I found. Maybe You have more suggestions? Thank You.
2) Message boards : Number crunching : Difference of credits (Message 78981) Posted 24 Oct 2015 by Aurimas Post: So, I reduced the number of WUs crunched at a time to 2. Temp is no longer going up and down like before, and every once in a while the multiplier goes to the max setting. Ugh, maybe I just need to repaste the CPU, AGAIN, and let it crunch full on. Yes, I have problems with my laptops due overheating too, but I am using Tthrottle, which reducing boinc usage and keeping fixed temperature, which I am able to set. Anyway, for experiments I used desktop computers with good cooling systems, so I am sure, that they runing 100% all time.
3) Message boards : Number crunching : Difference of credits (Message 78979) Posted 23 Oct 2015 by Aurimas Post: I would expect the same exact hardware to score higher with Windows than Linux because Windows seems to more aggressively use Turbo mode than Linux. I want to share with you experimental results of HP Compaq dc7800, Intel Core2 Duo CPU E6750 @ 2.66GHz [Family 6 Model 15 Stepping 11] and 2GB RAM. I tried it with 32bit Ubuntu 14.04 and 32bit Windows 10. CPU \| Cores \| OS \| Measured floating point speed \| Measured integer speed \| Claimed per hour \| Granted per hour \| Granted/claimed ratio Intel Core2 Duo CPU E6750 @ 2.66GHz \| 2 \| Ubuntu \| 2989,68 \| 7676,18 \| 44,47 \| 50,73 \| 1,14 Intel Core2 Duo CPU E6750 @ 2.66GHz \| 2 \| Windows 10 \| 2560,13 \| 5341,02 \| 32,92 \| 45,79 \| 1,39 Also, I tried to run CPU benchmarks on BOINC several times, but results of floating point speed differs only 1-2%.
4) Message boards : Number crunching : Difference of credits (Message 78976) Posted 23 Oct 2015 by Aurimas Post: Hello, I am trying to do small research of hosts, donating to Rosetta. I noticed large difference between my tested hosts and all other hosts with same CPU by BoincStats "Average credit per CPU second" statistic. Now I am looking for reasons of this. I noticed, that credits depending on operating system, but this difference is only about 5-10%. But I noticed 50-200% difference from BoincStats averages. As I know, Rosetta granting credits by all identical CPU(?) average, so average credit must be simmilar to claimed credits. Unfortunately, here is large difference too :) Maybe someone have minds, what can cause this. I still not tried, but maybe credits depending on WU length based on Rosetta preferences?