Ouch! New workunits take three times more time and give NO credit

[michael37]

I just ran into a few MB(?) workunits with AR ~1.48 which take EXCEEDINGLY long amount of time and produce literally no credit.  Ouch, that hurts!  Is that normal?  What's going on???

Here is a workunit that took 30,000 seconds.  For comparison, a normal 0.42 linefeed workunit takes about 8000 seconds to crunch on this computer.

Code:

CPU time 30737.35721
stderr out

<core_client_version>5.8.16</core_client_version>
<![CDATA[
<stderr_txt>
Optimized SETI@Home Enhanced application
Optimizers: Ben Herndon, Josef Segur, Alex Kan, Simon Zadra
Linux port: Crunch3r, Hans Dorn, Simon Zadra
   Version: Linux 64-bit based on S@H V5.15  'Noo? No - Ni!'
  Revision: R-2.4|xP|FFT:IPP_SSE3|Ben-Joe
     CPUID:                   Intel(R) Xeon(TM) CPU 2.80GHz
      CPUs: 2, cores: 1,  cache: L1=16K,  L2=1024K, L3=0K
  Features: MMX  SSE  SSE2  SSE3  x86_64
     Speed: 2800 MHz

Work Unit Info
True angle range:  1.486459
Optimized SETI@Home Enhanced application
Optimizers: Ben Herndon, Josef Segur, Alex Kan, Simon Zadra
Linux port: Crunch3r, Hans Dorn, Simon Zadra
   Version: Linux 64-bit based on S@H V5.15  'Noo? No - Ni!'
  Revision: R-2.4|xP|FFT:IPP_SSE3|Ben-Joe
     CPUID:                   Intel(R) Xeon(TM) CPU 2.80GHz
      CPUs: 2, cores: 1,  cache: L1=16K,  L2=1024K, L3=0K
  Features: MMX  SSE  SSE2  SSE3  x86_64
     Speed: 2800 MHz

Work Unit Info
True angle range:  1.486459
SETI@Home Informational message -9 result_overflow
NOTE: The number of results detected exceeds the storage space allocated.

Spikes Pulses Triplets Gaussians Flops
   0     31       0        0     134272140666

</stderr_txt>
]]>

Validate state Initial
Claimed credit 0.442911575113843
Granted credit 0.442911575113843
application version 5.21

Links to workunits:
http://setiathome.berkeley.edu/result.php?resultid=591511765
http://setiathome.berkeley.edu/result.php?resultid=591511775
http://setiathome.berkeley.edu/result.php?resultid=590794475

[Haselgrove]

Read the latest technical news:

http://setiathome.berkeley.edu/forum_thread.php?id=41585&nowrap=true#620572

There was a batch of bad WUs split. Not your problem, not Simon's problem. Oh, and there are other threads reporting this, both here and at SETI.

[michael37]

Cool, thanks.   I guess the language of everyone who describes the problem is different so it's hard to find matches in forums.

Hope, It is the quintessential Human delusion, Simultaneously the source for your greatest strength and your greatest weakness!

- The Architect