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SETI@home v8 beta to begin on Tuesday
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![]() Send message Joined: 15 Mar 05 Posts: 1547 Credit: 27,183,456 RAC: 0 ![]() |
Too hurry to remove older VS projects :/ David's in charge of the VS builds. He has a tendency to check things in before they work. (Eventually I intend to replace the stock build with one done on MinGW cross compile.) ![]() |
![]() ![]() Send message Joined: 18 Aug 05 Posts: 2423 Credit: 15,878,738 RAC: 0 ![]() |
Too hurry to remove older VS projects :/ So far I got crash reports for those non-graphics builds I was able to make with VS. BTW, VS ones link against FFTW 3.3.4 News about SETI opt app releases: https://twitter.com/Raistmer |
Send message Joined: 2 Jul 13 Posts: 505 Credit: 5,019,318 RAC: 0 ![]() |
I've looked through the Ubuntu package manager, installed the packages that come with autoconf, and libtool. What package would I install to give me bonic-master or whatever else I would need to compile a seti_v8 cpu app? For some reason I have this sudden urge to compile an app with at least ssse3 and fftw 3.3.4. Oh, fftw 3.3.4 is also in the package manager. |
Send message Joined: 18 Jun 08 Posts: 76 Credit: 113,089 RAC: 0 ![]() |
First one done, 4 minutes to overflow :/ Yeah, that's why I linked to the task pages. The second is now 50% done after 14 hours so looks like it'll be around 4 times longer than Arecibo workunits. |
![]() ![]() Send message Joined: 18 Aug 05 Posts: 2423 Credit: 15,878,738 RAC: 0 ![]() |
Eric, what about AstroPulse and new data sources? Will it be extended to them as MultiBeam does currently? News about SETI opt app releases: https://twitter.com/Raistmer |
![]() Send message Joined: 18 Jan 06 Posts: 1038 Credit: 18,734,730 RAC: 0 ![]() |
The picture says it all. _\|/_ U r s |
Send message Joined: 30 Dec 13 Posts: 258 Credit: 12,340,341 RAC: 0 ![]() |
Very nice..... Edit.. Nice noticed VLAR? |
![]() Send message Joined: 11 Dec 14 Posts: 96 Credit: 1,240,941 RAC: 0 ![]() |
August, 2013? I didn't realize the project had been acquiring GBT data for that long. Just how much has been stockpiled, I wonder? |
Send message Joined: 3 Jan 07 Posts: 1451 Credit: 3,272,268 RAC: 0 ![]() |
August, 2013? I didn't realize the project had been acquiring GBT data for that long. Just how much has been stockpiled, I wonder? Ah, I'd been wondering about that for my data distribution history charts. So the first numeric group in the WU name is the MJD of the recording? |
![]() ![]() Send message Joined: 18 Aug 05 Posts: 2423 Credit: 15,878,738 RAC: 0 ![]() |
If it were dedicated observations they all would be VLARs. No point to move telescope around sky if you control it :) Though there will be no Gaussians then? News about SETI opt app releases: https://twitter.com/Raistmer |
![]() Send message Joined: 18 Jan 06 Posts: 1038 Credit: 18,734,730 RAC: 0 ![]() |
If it were dedicated observations they all would be VLARs. No point to move telescope around sky if you control it :) It depends, if the data recorder was stopped during repositioning of the telescope then there would be only VLARs. Otherwise we will see higher AR as well. _\|/_ U r s |
Send message Joined: 18 Jun 08 Posts: 76 Credit: 113,089 RAC: 0 ![]() |
They did a search back in 2011. UC Berkeley SETI survey focuses on Kepler’s top Earth-like planets SETI at the Green Bank Telescope |
Send message Joined: 18 Jun 08 Posts: 76 Credit: 113,089 RAC: 0 ![]() |
So far I have completed just the one task that ended in overflow. App version details look like this: SETI@home v8 7.99 x86_64-pc-linux-gnu Number of tasks completed 1 Max tasks per day 34 Number of tasks today 1 Consecutive valid tasks 1 Average processing rate 891.51 GFLOPS Average turnaround time 0.02 days I thought overflow tasks weren't supposed to be counted? |
Send message Joined: 2 Jul 13 Posts: 505 Credit: 5,019,318 RAC: 0 ![]() |
Here's what my machine says; SETI@home v8 7.99 x86_64-pc-linux-gnu Number of tasks completed 4 Max tasks per day 37 Number of tasks today 0 Consecutive valid tasks 4 Average processing rate 8.82 GFLOPS Here's v7 SETI@home v7 (anonymous platform, CPU) Number of tasks completed 1413 Max tasks per day 752 Number of tasks today 0 Consecutive valid tasks 31 Average processing rate 23.59 GFLOPS |
![]() Send message Joined: 11 Dec 14 Posts: 96 Credit: 1,240,941 RAC: 0 ![]() |
They did a search back in 2011. I found this bit quite interesting: Once UC Berkeley astronomers acquire 24 hours of data on a total of 86 Earth-like planets, they’ll initiate a coarse analysis and then, in about two months, ask an estimated 1 million SETI@home users to conduct a more detailed analysis on their home computers. Perhaps a "month" is measured differently in Berkeley than elsewhere?? ;^) |
Send message Joined: 3 Jun 07 Posts: 51 Credit: 2,861,562 RAC: 0 ![]() |
Same observation as TBar's: SETI@home v8 7.99 x86_64-pc-linux-gnu Number of tasks completed 23 Max tasks per day 57 Number of tasks today 0 Consecutive valid tasks 24 Average processing rate 12.75 GFLOPS Average turnaround time 1.69 days SETI@home v7 7.01 i686-pc-linux-gnu Number of tasks completed 229 Max tasks per day 87 Number of tasks today 0 Consecutive valid tasks 56 Average processing rate 19.51 GFLOPS Average turnaround time 0.57 days |
![]() Send message Joined: 15 Mar 05 Posts: 1547 Credit: 27,183,456 RAC: 0 ![]() |
I'm not surprised to see problems with FLOPs estimates. It'll take a while to decide if they are real or not. ![]() |
![]() Send message Joined: 14 Feb 13 Posts: 606 Credit: 588,843 RAC: 0 |
APR is relative to rsc_fpops_est and suffers from credit_new trauma. New apps are especially traumatic what with the way ramp up works. (iow you can trust APR as much as you can trust credit ;) ) you'll probably get a better ballpark number if you manually compare the runtime/AR intrahost and check if v8 stock does really have a speed difference compared to v7 stock. edit: and remember we ended up with the wrong FFTW lib, so you can't really compare them anyway. A person who won't read has no advantage over one who can't read. (Mark Twain) |
Send message Joined: 2 Jul 13 Posts: 505 Credit: 5,019,318 RAC: 0 ![]() |
OK, here is a v8 task, http://setiweb.ssl.berkeley.edu/beta/results.php?hostid=76256, around 10 hours. Here is a v7 VLAR on the same machine, http://setiathome.berkeley.edu/result.php?resultid=4511710802 10 hours verses a little over 2 hours? Current v8 APR, 9.31 GFLOPS Current v7 APR, 23.83 GFLOPS I don't think it would be anywhere close even if you did use the stock v7 App. |
Send message Joined: 3 Jan 07 Posts: 1451 Credit: 3,272,268 RAC: 0 ![]() |
OK, here is a v8 task, http://setiweb.ssl.berkeley.edu/beta/results.php?hostid=76256, around 10 hours. You're comparing an SSSE3 optimised application with a test app built for accuracy checking only - and as Eric confirmed last week, with an old, slow, version of FFTW. All that proves is that optimised apps are faster: the trick is to make them accurate at the same time. That will come in all due time. |
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