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hchc
Veteran Cruncher
USA
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Re: Project Status (First Post Updated)

It's not entirely clear to me what the hold-up is with the "stuck" tasks, not just the 21 and 21 Ultras but the other Extreme stragglers. Can't they be manually kicked off? Were they all tasks with errors or something or just ones that took 30+ hours to compute? Not sure if we ever got a root cause analysis.

gl82854 said:
WCG should ignore the ultras. Let Delft run those on their systems.

Indeed. Running them 24/7 through an automated process on a couple machines would eliminate the hassle of deadlines and really speed them up.
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  • i5-7500 (Kaby Lake, 4C/4T) @ 3.4 GHz
  • i5-4590 (Haswell, 4C/4T) @ 3.3 GHz
  • i5-3570 (Broadwell, 4C/4T) @ 3.4 GHz

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Mike.Gibson
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Re: Project Status (First Post Updated)

hchc

I don't think we ever had a reason for the ultras. Many units that stuck initially were restarted by shortening the TimeStep which meant slicing the 2 day period into smaller slices and it worked.

How much shorter they tried I don't know. It did have the effect of lengthening the CPU time needed. It could be that they kept the shortened deadline for resends while increasing the CPU time because of the TimeStep. That would mean failing to meet deadlines.

If the TimeStep is reduced, the deadline should be increased.

My guess is that the problem might stem from difficult terrain where the patch is located causing problem calculating the weather.

This is a matter which is specific to ARP so should be posted on the ARP forum. This is a general forum.

Mike
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