Opened 3 years ago

Closed 2 years ago

#2058 closed help (answered)

MONSooN pretty slow

Reported by: nfreychet Owned by: um_support
Component: UM Model Keywords:
Cc: Platform:
UM Version: <select version>

Description

Hello,

I am running a UM8.4 job on MONSooN with 16*8 cores and a low resolution (N96). But it seems to be pretty slow (about 1h for 19 days), compared to the same kind of job on ARCHER with 12*8 cores that take 15min for 10 days. Can it be due to writing/reading output, or should I check more carefully something in the configuration?

Thanks,
Nicolas

Change History (3)

comment:1 Changed 3 years ago by grenville

Hi Nicolas

It could be IO related - can you let us know the job id (and the ARCHER equivalent).

Please ensure we have read access to the output.

Grenville

comment:2 Changed 2 years ago by nfreychet

Hello,

Here are the information of the last job I'm running on MONSOON (I don't have the job on ARCHER as it was conducted by someone else):

Job id Name User Time Use S Queue


2195296.xcm00 xnbra_run nifre 00:02:57 R normal

It's still about 1h40min for 30 days simulation.

Cheers,

Nicolas

comment:3 Changed 2 years ago by grenville

  • Resolution set to answered
  • Status changed from new to closed

Nicolas

Without knowledge of the exact ARCHER run, it's not possible to understand why the performance differs. I'd expect MONSooN to be quicker than ARCHER (all things being equal).

Grenville

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