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Message 19275 - Posted: 29 Apr 2014, 11:27:10 UTC - in response to Message 19259.
Last modified: 29 Apr 2014, 11:28:34 UTC

Machine ID 141349 is a laptop with an ATI video card. A large solo task has started, and should finish in 147 days. Machine ID 142392 has an NVIDIA GTS 250, and a large solo task takes about 3 days, and should finish tomorrow night. I see in Collatz Conjecture Preferences that i can turn off large solo tasks, but 3 days seems OK. Can this be done on a machine by machine basis?


For Stephen Uitti:
YES if you use the different 'venues' available, there are 4 venues possible, the default, home, school and work. Set each to the type of units you want and then put each pc in the correct venue. Each project has the venues available and you can make each project different in how it uses those venues. To get to the venues go into your account on the web page, then 'Preferences for this project' and you will see the default settings, scroll down and you will see that you can create the other venues as needed. You do NOT need to create those you don't need. To then put a pc in a venue go to that pc again under your account on the web page but this time go to 'Computers on this account'. Click on the pc you want to change to a different venue and at the very bottom of the page is a box you can make the change in. Save the change on the web page and then either manually click update on the pc or just wait until it talks to the project on its own and the new venue settings will take over.

Rick A. Sponholz
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Message 19277 - Posted: 29 Apr 2014, 11:35:39 UTC - in response to Message 19269.
Last modified: 29 Apr 2014, 11:37:18 UTC

Slicker,
I would love to be running the large wu's, but when BOINC assigns one to my intelgpus, the due date is too short to get it processed. When assigns one to one of my GTX690, 660Ti, or 590's cores it should be alright, but I really want to utilize my intelgpu for Collatz too. Please consider giving the large wu's more time. Thanks in advance for your consideration of my request, Col. Rick A. Sponholz


7 days is plenty of time to get them done as they will finish in under a day. The problem is that BOINC is just too frakking stupid to get the estimates correct as they are based on floating math and Collatz only uses integer math. So, no matter what I set the estimate to be, it is wrong because the ratio of flops to iops is different on different devices. In other words, it is using apples per day to measure oranges per day with its overly complicated algorithm that takes several WUs before it fingures out it is stupid and corrects itself. The K.I.S.S. method would have the correct estimate in under 5 seconds, but you don't get NSF grants for K.I.S.S. type of logic. ;-)


Maybe large wu's should run in one day on an intel gpu, but mine only completed ~ 7% after < 30 hrs.
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Rick A. Sponholz
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Message 19281 - Posted: 29 Apr 2014, 17:18:00 UTC

One additional note about the size and runtime of large wu's, a large wu was just running on a gtx590, and with 38hrs of run time, only 68% has been completed. Don't understand how you would expect a large wu to complete on an intelgpu in one day. Regards, Rick
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Message 19282 - Posted: 29 Apr 2014, 17:20:08 UTC - in response to Message 19277.

Slicker,
I would love to be running the large wu's, but when BOINC assigns one to my intelgpus, the due date is too short to get it processed. When assigns one to one of my GTX690, 660Ti, or 590's cores it should be alright, but I really want to utilize my intelgpu for Collatz too. Please consider giving the large wu's more time. Thanks in advance for your consideration of my request, Col. Rick A. Sponholz


7 days is plenty of time to get them done as they will finish in under a day. The problem is that BOINC is just too frakking stupid to get the estimates correct as they are based on floating math and Collatz only uses integer math. So, no matter what I set the estimate to be, it is wrong because the ratio of flops to iops is different on different devices. In other words, it is using apples per day to measure oranges per day with its overly complicated algorithm that takes several WUs before it fingures out it is stupid and corrects itself. The K.I.S.S. method would have the correct estimate in under 5 seconds, but you don't get NSF grants for K.I.S.S. type of logic. ;-)


Maybe large wu's should run in one day on an intel gpu, but mine only completed ~ 7% after < 30 hrs.


The fastest intel GPUs are 20 times faster than the slowest ones so while the fastest can run the large WUs, the slower GPUs will need to run either the solo or even the mini WUs for the earliest Intel HD 2000 series GPUs.

Is 7% while running 24/7 or was the WU suspended while the computer was being used?

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Message 19283 - Posted: 29 Apr 2014, 17:58:22 UTC - in response to Message 19270.

Solo has 0 WU ready to send.

All the multi-size WUs that people aborted or errored out are causing the problems. There are 3K available now.

Back to 0. Seems like people are eating the Solo units quickly. I luckily got 1, but would love a few more.

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Message 19285 - Posted: 29 Apr 2014, 19:10:15 UTC - in response to Message 19282.
Last modified: 29 Apr 2014, 19:13:47 UTC

Slicker,
I have 6 desktops dedicated 100% to BOINC. All have at least 3 gpu cores, most with at least one gtx690. Three also have the intelgpu. These all run 24/7. The runtime I quoted was actual wu runtime displayed in BOINC. I understand the difference between gpu speeds, it's just the intelgpus are so much slower than the additional gpu's most people have in their desktops. Regards, Rick
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Message 19291 - Posted: 30 Apr 2014, 14:41:10 UTC
Last modified: 30 Apr 2014, 14:42:59 UTC

Hello!

Host 142139 can't get a job size "Solo", only gets smaller, or even worse "Large", which on this machine performed (according to forecasts) for 20-30 days, that's not acceptable. Specify the size of "Solo" are optimal for this machine, as are a little less than 7 hours.

In the project settings now is getting only "Solo", but the job of this size do not come. If you set a “Mini”, then begin to come “Mini”, but they are less than 3 hours on this host that is not optimal.
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Message 19293 - Posted: 30 Apr 2014, 16:02:08 UTC - in response to Message 19291.

Hello!

Host 142139 can't get a job size "Solo", only gets smaller, or even worse "Large", which on this machine performed (according to forecasts) for 20-30 days, that's not acceptable. Specify the size of "Solo" are optimal for this machine, as are a little less than 7 hours.

In the project settings now is getting only "Solo", but the job of this size do not come. If you set a “Mini”, then begin to come “Mini”, but they are less than 3 hours on this host that is not optimal.


It looks like you got a solo WU yesterday:
http://boinc.thesonntags.com/collatz/result.php?resultid=5935825

And you have another in progress today:
http://boinc.thesonntags.com/collatz/result.php?resultid=6152750

Since the solo WUs are 16 times larger than the mini WUs and since the mini WUs take 3 hours, it will take 48 hours for a solo WU to complete. If that is what you deem optimal, then make sure your cache is set to at least 2 days or else BOINC will think it will be overworked and won't actually get any work.

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Message 19296 - Posted: 30 Apr 2014, 21:12:38 UTC

why am I getting mini wu's when I don't have it checked in my preferences

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Message 19304 - Posted: 1 May 2014, 21:19:28 UTC - in response to Message 19296.

why am I getting mini wu's when I don't have it checked in my preferences


I really don't know why the scheduler sends apps where are unselected even if the preferences are set to not allow other apps. Bugs, bugs, bugs.

My temporary fix is to disable non-android/ARM apps for it which means those with really old PCs might not be able to finish a mini WU before the deadline.

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Message 19305 - Posted: 1 May 2014, 21:25:38 UTC - in response to Message 19304.

I am getting all sizes of wu's not just solo as checked and I have the newest boinc installed so I am aborting the ones I don't want.Is there anyway to stop them from being resent to me?

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Message 19306 - Posted: 1 May 2014, 23:20:11 UTC - in response to Message 19305.

I am getting all sizes of wu's not just solo as checked and I have the newest boinc installed so I am aborting the ones I don't want.Is there anyway to stop them from being resent to me?


Looking at the WUs you aborted, they sure all look to be solo WUs. They just aren't new solo WUs.

Prior to last week, solo WUs came in 8 different sizes. There are 12,000 the old solo WUs of various sizes left to be crunched. There are two choices: crunch them or I have to reset the project back one quintillion numbers. Yes, one quintillion numbers have been crunched or are in progress compared to the smallest multi-size solo WU that someone has aborted and still needs to be completed. That's a lot of re-work for just 12K of WUs.

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Message 19437 - Posted: 11 May 2014, 0:46:09 UTC
Last modified: 11 May 2014, 0:52:34 UTC

It seems that all ARM Linux files are the same app, ARMv6 FP. I thought that you meant to offer ARM v5 no-FP, ARMv5 FP, ARMv6 no-FP, ARMv6 FP. Did I miss something?

I have an ARMv5 no-FP host which barfs at all WUs.

Please, advise.
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Message 19467 - Posted: 13 May 2014, 15:31:23 UTC - in response to Message 19437.

It seems that all ARM Linux files are the same app, ARMv6 FP. I thought that you meant to offer ARM v5 no-FP, ARMv5 FP, ARMv6 no-FP, ARMv6 FP. Did I miss something?

I have an ARMv5 no-FP host which barfs at all WUs.

Please, advise.


The android apps are targets for ARMv7 and the Raspberry Pi apps are targeted for ARMv6. I never built an ARMv5 cross compiler so there are no ARMv5 apps at this time. The different names are due to the BOINC client reporting different platforms depending upon how the BOINC client was built.

Given that the ARM/Android devices account for only 0.0018% of the computing power on Collatz (no, the decimal is not misplaced, it really is 18 one thousandths of one percent) I'm not sure that an ARMv5 app is warranted.

If the ARMv6 cross compiler and make an ARMv5 app and it would run on both ARMv6 and ARMv5 devices, that would be a possibility.

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Message 19468 - Posted: 13 May 2014, 16:03:39 UTC - in response to Message 19467.

Yes, an ARMv5 app would definitely run on an ARMv6 with the same performance.

Thanks.
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Message 19476 - Posted: 14 May 2014, 9:58:22 UTC

I cannot get Micro for my Arm. Says there are units on the Status page, but when I request them it says there is none.

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Message 19478 - Posted: 14 May 2014, 14:29:55 UTC - in response to Message 19476.
Last modified: 14 May 2014, 14:30:45 UTC

I cannot get Micro for my Arm. Says there are units on the Status page, but when I request them it says there is none.


From: http://boinc.thesonntags.com/collatz/show_host_detail.php?hostid=144184
Measured integer speed: 4611.13 million ops/sec

Per the News post:
I have added logic such that it will send the Micro work units only if the Measured Integer Speed is 4294 million ops/second or less. That number was chosen as it equates to that of a Intel E2160 Core 2 Duo running @ 1.8Ghz which is the slowest CPU I currently own


4611 is greater than 4294 which is why it won't send any Micro WUs to your ARM. Given that it takes about 1.5 days to complete a mini, it looks like I need to increase it. But if I were to increase it to 5000 for example, then a Q6600 would also get the Micro WUs and it can certainly run the Mini WUs without any problems. I'm beginning to think the BOINC Dhrystone benchmarks done on ARM processors are a joke. Obviously the compiler optimized the code somehow which skews the results and makes the ARM devices look a lot faster than they really are.

What version of BOINC are you running? The "official" one or the 3rd party AndoBOINC or whatever it is called?

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Message 19480 - Posted: 14 May 2014, 14:46:53 UTC - in response to Message 19478.
Last modified: 14 May 2014, 14:49:56 UTC

I am using NativeBoinc. The last time I tried the official version it did not allow me to remote control it like the non-ARM versions do, and it also had other issues (crashing projects that worked fine on the 3rd party). So I am hesitant to use it. If they fixed it and now allow me to use a remote manager to control the unit, I may be more inclined to try, but no one has been able to give me an affirmative on that.

You stated your PC is a 1.8G, well my ARM is a 1.9G, so technically it could be faster than your desktop and may be why the benchmark is higher.

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Message 19482 - Posted: 16 May 2014, 11:45:39 UTC

Instead of making it 5000, why not just make it 4650. This will keep it under the threshold of a 2G machine, allowing the 1.9G to get Micro work?

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Message 19483 - Posted: 16 May 2014, 13:15:20 UTC - in response to Message 19482.

Instead of making it 5000, why not just make it 4650. This will keep it under the threshold of a 2G machine, allowing the 1.9G to get Micro work?


OK. Give it a try now.

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