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Number crunching :
Problems with MBv8_8.22r4008_avx2_intel_x86_64-pc-linux-gnu
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Tom M Send message Joined: 28 Nov 02 Posts: 5126 Credit: 276,046,078 RAC: 462 |
I just noticed these. They have a 900+ day crunching time estimate. Any ideas? Tom Application Local: setiathome_v8 8.00 Name 25mr13ab.8426.484291.8.35.198 State Running Received Fri 17 Jan 2020 12:25:35 AM CST Report deadline Thu 06 Feb 2020 11:35:16 AM CST Estimated computation size 5,875 GFLOPs CPU time 00:27:34 CPU time since checkpoint 00:03:31 Elapsed time 00:27:42 Estimated time remaining 954d 11:09:47 Fraction done 0.002% Virtual memory size 44.89 MB Working set size 32.90 MB Directory slots/7 Process ID 17546 Executable MBv8_8.22r4008_avx2_intel_x86_64-pc-linux-gnu Application Local: setiathome_v8 8.00 Name 25mr13ab.8426.484291.8.35.208 State Running Received Fri 17 Jan 2020 12:25:35 AM CST Report deadline Thu 06 Feb 2020 11:35:16 AM CST Estimated computation size 5,875 GFLOPs CPU time 00:27:30 CPU time since checkpoint 00:03:24 Elapsed time 00:27:36 Estimated time remaining 950d 13:46:57 Fraction done 0.002% Virtual memory size 44.89 MB Working set size 32.91 MB Directory slots/14 Process ID 17840 Executable MBv8_8.22r4008_avx2_intel_x86_64-pc-linux-gnu A proud member of the OFA (Old Farts Association). |
rob smith Send message Joined: 7 Mar 03 Posts: 22528 Credit: 416,307,556 RAC: 380 |
Which of your computers? Which processor on that computer? Anything else running? Without that information everyone is shooting in the dark Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
Stephen "Heretic" Send message Joined: 20 Sep 12 Posts: 5557 Credit: 192,787,363 RAC: 628 |
I just noticed these. They have a 900+ day crunching time estimate. Any ideas? . . I would suggest you suspend them both, let 2 more tasks begin and get well established then resume them. They should go waiting then restart on the next 2 CPU cores that become available. Monitor to see that they do not repeat the behaviour and they should run normally. If they do repeat the behaviour then 86 them :) Stephen . . my 2c worth. |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14679 Credit: 200,643,578 RAC: 874 |
Looks like a computer problem, not a data problem. MBv8_8.22r4008_avx2_intel_x86_64-pc-linux-gnu looks like a homebrew / Anonymous Platform application, not one of Eric's. Can we move this query to another thread, please? I suggest he takes it up with the author of that app. |
Tom M Send message Joined: 28 Nov 02 Posts: 5126 Credit: 276,046,078 RAC: 462 |
Which of your computers? https://setiathome.berkeley.edu/show_host_detail.php?hostid=8853145 These are/were cpu tasks running on an Amd 3950x under Linux. The total threads I run are 28-29. Task manager claims ~90% cpu load. I am running 100% Seti@Home at the moment. I had to reboot the computer because a lower cpu voltage experiment had made rendered it unresponsive after 15 odd minutes. Now, none of the tasks are showing extreme, long time estimates. Have to run off to work in the midst of freezing rain. Will see if I can "find" these tasks after work. Tom A proud member of the OFA (Old Farts Association). |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14679 Credit: 200,643,578 RAC: 874 |
If a task has done 0.002% in 27 minutes 34 seconds, then linear extrapolation suggests that the whole task will take 83,100,000 seconds - or about 961.8 days. I reckon BOINC's estimate of 954 days 11 hours was pretty close, if a little low. Alternatively: without volts, CPUs don't run very fast. Maybe your computer would have responded if you'd waited about 3 years? |
TBar Send message Joined: 22 May 99 Posts: 5204 Credit: 840,779,836 RAC: 2,768 |
NameIs this an Arecibo Shorty (VHAR)? From the README_x41p_V0.98.txt included in the package; 8) The CPU Progress bar may stall with High AR Work Units, the task will finish normally, it's just the Progress Bar that's stalled.If you aren't showing any Errors on those tasks I suggest you let them run and see how long it takes them to finish as per the ReadMe. It's Not just the Windows SoG App that doesn't like Arecibo (VHAR) Shorties, there are a number a Apps built from Raistmer's Code that don't respond well to Shorties. |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
NameIs this an Arecibo Shorty (VHAR)? Let's call them properly VHAR tasks with high angle range. The task in question has: WU true angle range is : 48.172349 An Arecibo "shorty" could just as well of been an early or late overflow with low crunch times. I've been seeing lots of these "stalled" tasks lately from all the old Arecibo data we have been reprocessing. Other than the task getting shifted into high priority mode, they finish fine in the expected length for easy tasks. Just ignore the progress bar and the estimation. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
Looks like a computer problem, not a data problem. MBv8_8.22r4008_avx2_intel_x86_64-pc-linux-gnu looks like a homebrew / Anonymous Platform application, not one of Eric's. Can we move this query to another thread, please? I suggest he takes it up with the author of that app. I'm not sure what other thread is more appropriate. The thread is specifically about the latest alternative optimized cpu app that is provided in TBar's latest AIO. Just another in the line of AVX2 enabled cpu applications he has provided over the years. Anybody run the new app through the benchmarks yet with a comparison run against the default r3711 SSE41 cpu app? Tom did you? Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
rob smith Send message Joined: 7 Mar 03 Posts: 22528 Credit: 416,307,556 RAC: 380 |
The post from Richard was the one that triggered the question's move from its initial location to a thread all of its own. Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
The post from Richard was the one that triggered the question's move from its initial location to a thread all of its own. Oh. Wasn't aware the thread started elsewhere. Nevermind. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
TBar Send message Joined: 22 May 99 Posts: 5204 Credit: 840,779,836 RAC: 2,768 |
Anybody run the new app through the benchmarks yet with a comparison run against the default r3711 SSE41 cpu app?After spending DAYS trying to get the AKv8 OpenCL App to compile in the newer Linux systems it has come to my attention a large number of Optimizations were left out of the CPU Apps. It May be possible to build a New CPU App with better speed using those said Optimizations. Right now I'm trying to find the System calls named by Eric & RueiKe that should be left out of the OpenCL App. Not having much luck. Anyone know just WHERE in the code "funsafe-math-optimizations" & "unsafe-fp-opt" are lurking? The New OpenCL App is a little faster than r3584, I suspect a Newer CPU App can be faster than r3711 as well. |
rob smith Send message Joined: 7 Mar 03 Posts: 22528 Credit: 416,307,556 RAC: 380 |
Can we stick to the problem about the AVX2 app, which is a CPU app, not a GPU app. Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
It should be in the configure file for the app. Either on the CPPFLAGS= line or CFLAGS= line or on the configure line itself. At least that is where I found and modified the math optimizations for my aarch_64 zi3v app. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
TBar Send message Joined: 22 May 99 Posts: 5204 Credit: 840,779,836 RAC: 2,768 |
Not and have any input from Me. |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
Can we stick to the problem about the AVX2 app, which is a CPU app, not a GPU app. Don't think there is any problem with the AVX2 app. Simply Tom not understanding that like all the cpu apps, it does not move the progress bar normally with VHAR tasks. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Ian&Steve C. Send message Joined: 28 Sep 99 Posts: 4267 Credit: 1,282,604,591 RAC: 6,640 |
those appear to be compiler options. not in the code itself. Seti@Home classic workunits: 29,492 CPU time: 134,419 hours |
rob smith Send message Joined: 7 Mar 03 Posts: 22528 Credit: 416,307,556 RAC: 380 |
Then why has it taken so many posts for you to explain that to him (in public). Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
TBar Send message Joined: 22 May 99 Posts: 5204 Credit: 840,779,836 RAC: 2,768 |
those appear to be compiler options. not in the code itself.I've searched a couple versions of the sah_v7_opt folder and can't find those lines anywhere in the files. I even moved the current r4101 sah_v7_opt to my Mac, which has a Much better search routine, and still can't find unsafe-fp-opt or funsafe-math-optimizations anywhere in the folder. On a Mac, if those lines were in the sah_v7_opt folder, it would find them. For instance, if I search for CalcChirpData_kernel_df64_cl in the sah_v7_opt folder , the two files analyzeFuncs.cpp & MultiBeam_Kernels.cl instantly pop up, meaning those two files contain the line CalcChirpData_kernel_df64_cl in them. Searching for unsafe-fp-opt & funsafe-math-optimizations finds nothing... |
Ian&Steve C. Send message Joined: 28 Sep 99 Posts: 4267 Credit: 1,282,604,591 RAC: 6,640 |
Perhaps these were compiler options that Eric was adding himself, but not in the default configuration. So there may not be anything for you to remove. “unsafe-fp-opt†doesn’t appear to be a valid compiler option. Google returns 0 results when trying for an exact match. Whatever option you’re looking for, it’s likely called something else. Seti@Home classic workunits: 29,492 CPU time: 134,419 hours |
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