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iceman1992 wrote:Well I usually see the log anyway. But bruce said that this kind of behavior is unusual, so I posted here. Can't it just take an average of the TPF on the log?
I apologize for giving inaccurate information.But bruce said that this kind of behavior is unusual
I don't believe so.Jesse_V wrote:I believe the client takes the last three TPFs, takes the median (not the mean) and reports that as the TPF and uses that for ETA calculations. I've seen fluctuations as well, so maybe there's some kind of glitch somewhere.
I'm not saying either of you is inaccurate. Probably different computers and WUs give different resultsLeonardo wrote:I apologize for giving inaccurate information.But bruce said that this kind of behavior is unusual
iceman1992 wrote:I don't believe so.Jesse_V wrote:I believe the client takes the last three TPFs, takes the median (not the mean) and reports that as the TPF and uses that for ETA calculations. I've seen fluctuations as well, so maybe there's some kind of glitch somewhere.
Because the TPF on mine is around 1:24 +/- 2 seconds, and the client never shows a TPF anywhere near that.
Always the low end (1:09 +/- 2s), or the high end (1:45 +/- 2s).
But an interesting thing to note is this happens on 8013, while on another project like 7809 the TPF is spot on.
jcoffland wrote:As of v7.1.44 the client tries to measure frames by watching the frame number change. If the core is shutdown or the machine is hibernated the core will detect this and adjust it's estimate accordingly. It saves the last three frame measures and uses the median value for it's predictions. This both allows the estimates to adjust quickly (on a per frame basis) and provides some smoothing for abnormal values.
******************************** Date: 04/05/12 ********************************
13:31:35:WU00:FS01:Connecting to assign3.stanford.edu:8080
13:31:36:WU00:FS01:News: Welcome to Folding@Home
13:31:36:WU00:FS01:Assigned to work server 171.67.108.60
13:31:36:WU00:FS01:Requesting new work unit for slot 01: READY smp:4 from 171.67.108.60
13:31:36:WU00:FS01:Connecting to 171.67.108.60:8080
13:31:38:WU00:FS01:Downloading 866.49KiB
13:31:42:WU00:FS01:Download complete
13:31:42:WU00:FS01:Received Unit: id:00 state:DOWNLOAD error:OK project:8013 run:212 clone:5 gen:2 core:0xa4 unit:0x000000046652edcc4f72bed75503ede3
13:31:43:WU00:FS01:Starting
13:31:43:WU00:FS01:Running FahCore: "J:\Program Files (x86)\FAHClient/FAHCoreWrapper.exe" J:/ProgramData/FAHClient/cores/www.stanford.edu/~pande/Win32/AMD64/Core_a4.fah/FahCore_a4.exe -dir 00 -suffix 01 -version 701 -lifeline 488 -checkpoint 15 -np 4
13:31:43:WU00:FS01:Started FahCore on PID 7444
13:31:44:WU00:FS01:Core PID:4036
13:31:44:WU00:FS01:FahCore 0xa4 started
13:31:45:WU00:FS01:0xa4:
13:31:45:WU00:FS01:0xa4:*------------------------------*
13:31:45:WU00:FS01:0xa4:Folding@Home Gromacs GB Core
13:31:45:WU00:FS01:0xa4:Version 2.27 (Dec. 15, 2010)
13:31:45:WU00:FS01:0xa4:
13:31:45:WU00:FS01:0xa4:Preparing to commence simulation
13:31:45:WU00:FS01:0xa4:- Looking at optimizations...
13:31:45:WU00:FS01:0xa4:- Created dyn
13:31:45:WU00:FS01:0xa4:- Files status OK
13:31:45:WU00:FS01:0xa4:- Expanded 886771 -> 2028636 (decompressed 228.7 percent)
13:31:45:WU00:FS01:0xa4:Called DecompressByteArray: compressed_data_size=886771 data_size=2028636, decompressed_data_size=2028636 diff=0
13:31:45:WU00:FS01:0xa4:- Digital signature verified
13:31:45:WU00:FS01:0xa4:
13:31:45:WU00:FS01:0xa4:Project: 8013 (Run 212, Clone 5, Gen 2)
13:31:45:WU00:FS01:0xa4:
13:31:45:WU00:FS01:0xa4:Assembly optimizations on if available.
13:31:45:WU00:FS01:0xa4:Entering M.D.
13:31:51:WU00:FS01:0xa4:Mapping NT from 4 to 4
13:31:51:WU00:FS01:0xa4:Completed 0 out of 250000 steps (0%)
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14:51:07:FS01:Finishing
14:53:20:WU00:FS01:0xa4:Completed 145000 out of 250000 steps (58%)
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15:55:25:WU00:FS01:0xa4:Completed 250000 out of 250000 steps (100%)
15:55:25:WU00:FS01:0xa4:DynamicWrapper: Finished Work Unit: sleep=10000
15:55:35:WU00:FS01:0xa4:
15:55:35:WU00:FS01:0xa4:Finished Work Unit:
15:55:35:WU00:FS01:0xa4:- Reading up to 1297284 from "00/wudata_01.trr": Read 1297284
15:55:35:WU00:FS01:0xa4:trr file hash check passed.
15:55:35:WU00:FS01:0xa4:- Reading up to 785600 from "00/wudata_01.xtc": Read 785600
15:55:35:WU00:FS01:0xa4:xtc file hash check passed.
15:55:35:WU00:FS01:0xa4:edr file hash check passed.
15:55:35:WU00:FS01:0xa4:logfile size: 23009
15:55:35:WU00:FS01:0xa4:Leaving Run
15:55:38:WU00:FS01:0xa4:- Writing 2111297 bytes of core data to disk...
15:55:38:WU00:FS01:0xa4:Done: 2110785 -> 2024704 (compressed to 95.9 percent)
15:55:38:WU00:FS01:0xa4: ... Done.
15:55:39:WU00:FS01:0xa4:- Shutting down core
15:55:39:WU00:FS01:0xa4:
15:55:39:WU00:FS01:0xa4:Folding@home Core Shutdown: FINISHED_UNIT
15:55:39:WU00:FS01:FahCore returned: FINISHED_UNIT (100 = 0x64)
15:55:39:WU00:FS01:Sending unit results: id:00 state:SEND error:OK project:8013 run:212 clone:5 gen:2 core:0xa4 unit:0x000000046652edcc4f72bed75503ede3
15:55:39:WU00:FS01:Uploading 1.93MiB to 171.67.108.60
15:55:39:WU00:FS01:Connecting to 171.67.108.60:8080
15:55:45:WU00:FS01:Upload 9.71%
15:55:52:WU00:FS01:Upload 19.42%
15:55:58:WU00:FS01:Upload 29.12%
15:56:05:WU00:FS01:Upload 38.83%
15:56:11:WU00:FS01:Upload 48.54%
15:56:17:WU00:FS01:Upload 58.25%
15:56:23:WU00:FS01:Upload 67.96%
15:56:30:WU00:FS01:Upload 77.66%
15:56:36:WU00:FS01:Upload 87.37%
15:56:43:WU00:FS01:Upload 97.08%
15:56:47:WU00:FS01:Upload complete
15:56:47:WU00:FS01:Server responded WORK_ACK (400)
15:56:47:WU00:FS01:Final credit estimate, 1321.00 points
15:56:47:WU00:FS01:Cleaning up
That is exactly what I thoughtbruce wrote:I don't see any basis for a +- 13% variation, even when the resolution of the measurements is +- 0.5 sec out of 82 sec or just over +- 0.6% of that. Most WUs have longer frames, so the errors due to measurment resolution errors would be even less significant.
Thanks for the suggestion but I don't really mind, I use the log for accurate estimations. I'm just reporting the problem, as it may annoy some peopleLeonardo wrote:HFM.net, you'll like it.
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