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Questions and Answers : Getting started : Only one task

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JustSomeGuy
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Message 60170 - Posted: 20 May 2019, 16:39:06 UTC

I just setup a new account and have everything setup on a sever with 32 logical cores. When I added this project I only got one task which is running supper slow, using almost no resources.

I'd think this machine could handle several tasks at once.

As a test I added LHC@home it immediately pulled about 100 tasks. Most of which are pending download but at least 3 have already started running. Is there something I'm missing? The project stats page says there's 13K jobs ready to send.

Profile Dave Jackson
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Message 60171 - Posted: 20 May 2019, 17:01:00 UTC

I only got one task which is running supper slow


On a much slower computer yesterday when I connected to the project, it only got one task initially and then the other three cores got theirs an hour later. Updating now might get some more. I don't remember noticing this behaviour before but that doesn't mean it hasn't happened.

About running super slow, On a fast machine most tasks should take between about 5 and 8 days at a guess. 8 is about what the quickest ones take for my relatively slow fastest box.

JustSomeGuy
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Message 60172 - Posted: 20 May 2019, 17:08:11 UTC

The processors are 2.6 Ghz and it's currently predicting 14d to finish. That sound about right?

I'll keep an eye on it and see if more tasks show up later.

JustSomeGuy
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Message 60173 - Posted: 20 May 2019, 17:33:52 UTC

Just checked and a dozen jobs are queued now.

Weird, thanks.

Profile Dave Jackson
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Message 60176 - Posted: 21 May 2019, 4:07:36 UTC - in response to Message 60173.

The processors are 2.6 Ghz and it's currently predicting 14d to finish. That sound about right?


I suspect that they will go a bit faster than that but there is quite a bit of variation in task duration. Some models look at climate based on 25km squares, some on 50km squares. The higher resolution models taking longer. Also some models are as few as 13 months, some over 100. On my slowest box the longest ones take over two months.

JustSomeGuy
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Message 60180 - Posted: 21 May 2019, 15:03:17 UTC - in response to Message 60176.

>take over two months

wow, ok, thanks

Profile JIM
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Message 60181 - Posted: 21 May 2019, 18:42:50 UTC - in response to Message 60180.

>take over two months

wow, ok, thanks


I just finished a task on a 2.6 GHz machine that took 152 days. It was an 85-month task. That was running 24/7.
____________

Profile geophi
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Message 60182 - Posted: 21 May 2019, 19:14:01 UTC - in response to Message 60181.

I just finished a task on a 2.6 GHz machine that took 152 days. It was an 85-month task. That was running 24/7.

Just for perspective for anyone new reading this, those type of really long-running tasks have been rarities in the last decade.

JustSomeGuy
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Message 60188 - Posted: 22 May 2019, 15:41:53 UTC - in response to Message 60181.

>It was an 85-month task.

How can you tell how many months a task is?

Profile Dave Jackson
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Message 60191 - Posted: 22 May 2019, 17:27:40 UTC - in response to Message 60188.

How can you tell how many months a task is?



wah2_sam50_a02e_198612_24_815_011848026_0

The 24 is the number of months, 815 is the batch number,waha2 is the model type and 198612 is the start year and month.

Questions and Answers : Getting started : Only one task


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