My pc seems to be doing WU's at about 1/10 of my previous pc and its a better machine...help!
11 Mar 2013 20:11:06 UTC
Topic 196848
(moderation:
I am slowly moving over to a newer machine and and i seem to heading into the land of syrup as far as E@H is concerned. My previous machine was an i5 2320 8gb ram and a GT640 graphics card, running win 7 64bit. My newer machine is an AMD FX4170, 8gb ram and an AMD radeon HD 6670 also running win7 64bit. Problem is i'm only getting about 10% of my previous machine turnaround and i cant seem to get it to run 4 cpu WU's and GPU WU's like the previous machine did. (hope that made sense).
Both machines have the same settings under preferences for this comp and for this project......any ideas would be most welcome....p.s. i'm not computer literate so please be gentle!! :)
My pc seems to be doing WU's at about 1/10 of my previous pc and
)
Hiya - happy to help but unfortunately your computers are hidden so there's little for us to go on. Can you unhide them? (it's a setting in your account somewhere).
I do know one common cause is that you need to install the GPU drivers yourself (i.e. if you leave it to Windows it won't work properly). Pretty sure others with AMD/ATI/Win experience will be able to help more.
sorry about that, didn't
)
sorry about that, didn't realise they were hidden. Hope that's rectified now.I did install the driver but i dont understand what the problem is with it only running three CPU WU's and one GPU.............there again i am not the most savvy on PC's so I hope it's easy to fix......(crosses fingers and hopes).
Thanks for the prompt reply...most kind.
Fraid your computers are
)
Fraid your computers are still hidden - looks like you need to visit the preferences page and change the setting Should Einstein@Home show your computers on its web site? to 'Yes' to let others see your computers & work.
Still, your average credit look about right; do you have "Run CPU versions of applications for which GPU versions are available" set to 'Yes' or 'No'? If 'Yes, you'll get work that takes a long time to run so many people with GPUs set this to 'no'. It doesn't really affect overall credit though.
I have a feeling this is the
)
I have a feeling this is the same pc he is using here http://setiathome.berkeley.edu/show_host_detail.php?hostid=6604667
So now we need to see how he has his preferences set for this project.
(one of mine) http://einstein.phys.uwm.edu/prefs.php?subset=project&updated=1
What do you mean by "i'm only
)
What do you mean by "i'm only getting about 10% of my previous machine turnaround " ?
If you are looking at the RAC of that computer, as the value is a rolling average, it takes at least 4 weeks to get close to the expected value and may be another month to stabilize. In this case having just a 10% of the expected RAC might be normal for a new host.
If you were looking at the raw credits per day, this also takes some time to stabilize, because each result needs to be validated with other user, and due to the different times in which each user returns the tasks, you might be stoking on "pendings" (which later will become credits)... But anyway it shouldnt be so low at least not if you have been running the computer at least a couple of days...
The best comparison (here in Einstein) will be to see how much time each kind of tasks take to be crunched on each host...
Now, about not beeing able to use the 4 cores, I fear that is a limitation of the apps for AMD GPUs which requiere more support from the CPU and then they "reserve" one of the cores (but as I dont have any AMD GPU, im not sure)... Anyway, crunching with one less core should not give you a 90% difference in those particular hosts...
By the way your hosts are still hidden... it takes some time for this to effectivelly change once you set it, but ussually not more than a couple of hours...
Firstly let me say thanks for
)
Firstly let me say thanks for all your kind guidance and help, I have hopefully now made the adjustment to make the PC.s visible.
My I5 PC runs all 4 cores and the Nvidia so i get 5 tasks running at the same time, the AMD PC only runs 3 cores and the GPU so i am only running 4 tasks at once.
I dont understand why as both comps have the same settings, why i seem to have lost one core compared to the I5 ability to handle the WU's.
I am sorry if my descriptions are not very exact but without the knowledge to use and understand the terminology I am wandering in the dark. :)
my thanks again for the help.
RE: My I5 PC runs all 4
)
What Ive meant is, that the GPU program for AMD uses one of the 4 CPU cores to "feed" the GPU and then this core is not used for a 4th task.
The program for Nvidia doesnt need a CPU core to work so it remains free to be used by a 4th task.
This happens because the applications that do the calcs on the GPU rely on hardware features that are different on both brands and then you can't use the same program in both of them, at least not efficiently. (Im simplifying)
Now, comparing the times, the new computer doesnt seem to be better than the old one. Im certainly more close to be a fan of Intel/Nvidia than AMD, but despite my subjectivity, the times shown in your tasks say that:
For the Gavitational Wave Search your times are around:
17K seconds for the AMD and 16K seconds for the Intel
For the GamaRay Pulsar Search your times are:
6.9K seconds for the AMD and 5K seconds for the Intel
And for the Binary Radio Pulsar Search the times are:
7K seconds for AMD GPU and 4K seconds for Nvidia GPU
May be someone with more experience with AMD can give you some hint about how to optimize your settings to get better times on AMD...
Now, your AMD computer has a low RAC because it was created on march 2 (less than 10 days) so you will have to be patient to see it rise, as Ive said this is an average rolling value (wheighted over time) that takes a relatively long time to stabilize...
As your computers were hidden there is no data on the statistics site, so I cant tell you how much RAC you can expect for the new host... But judging for the times and the fact that there is one less task beeing crunched for sure its going to be lower than the RAC of the other host, but not as low as it is right now.
Have a read
)
Have a read here...
http://wiki.answers.com/Q/What_is_the_difference_between_AMD_and_Intel_processors
With doing this "boinc" AMD runs a bit slower. Even if overclocked. AMD is better than intel on some things and intel is better than AMD on some things. For doing Boinc work I would use intel if you want better speeds. I just prefer AMD over intel so I run AMD for my main gaming rig. When I setup other computers to run this they will most likely all be intel as I will not use them for anything else.
PC setup MSI-970A-G46 AMD FX-8350 8 core OC'd 4.45GHz 16GB ram PC3-10700 Geforce GTX 650Ti Windows 7 x64 Einstein@Home
Many thanks for the
)
Many thanks for the "simplified" explanation, and to all kind souls who took the time and effort to put me on track.
I will wait and see what happens and hope my stats at least look a little healthier with time.
Seems strange to a non-learned chap like myself that a 3ghz pc does better than a 4.2ghz but there ya go! :)
Be well folks and thanks again....*waves and bows deeply in gratitude*
RE: Seems strange to a
)
Just as info, the raw speed its only good as an indication of relative performance if you compare CPUs of the same brand, and generation/technology.
An intel i7 ivy bridge is around a 20% faster than one i7 sandy bridge running at the same clock...
Another thing... it would be good to check that your CPU is running at their maximun speed, may be there is some setting in your computer that is set to the "green" mode (downclocking the CPU to consume less energy)... You can use CPU-Z for that thttp://www.cpuid.com/softwares/cpu-z.html (Just look carefully at the right of the screen for the download link, in the page there is always some ads that says "download now" or other confusing messages...)