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Hardware requirements for upcoming models

Hardware requirements for upcoming models

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Mr. P Hucker

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Message 65987 - Posted: 24 Aug 2022, 22:24:42 UTC - in response to Message 65986.  
Last modified: 24 Aug 2022, 22:25:12 UTC

Or quite commonly by the presence of a cathedral.
In the 21st century we still go by that rubbish? And don't the politically correct folk accept a mosque instead?
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Profile Dave Jackson
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Message 66019 - Posted: 31 Aug 2022, 9:20:14 UTC
Last modified: 31 Aug 2022, 11:40:20 UTC

Processor speed is not that relevant here, what is though is available core count. IFS (and OpenIFS) is a highly parallel model. If I enable threading, there is a 2x speedup with 2 cores, 3.5x with 4 cores etc. I plan to release some tests on the dev site which will try out multi-core, higher model resolution (and hence memory) after the summer with assistance from the CPDN team.


Today is the last day of meteorological summer. ;)
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Mr. P Hucker

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Message 66021 - Posted: 31 Aug 2022, 20:12:28 UTC - in response to Message 66019.  

Today is the last day of meteorological summer. ;)
The only true definition. Why do most people insist the longest day, June 21st, is the start of summer? That's entirely illogical.
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Jean-David Beyer

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Message 66022 - Posted: 31 Aug 2022, 20:42:34 UTC - in response to Message 65981.  

I wonder if Boinc has knowledge of your internet speed, and could send different types of task to different people?


Which internet speed? They have this for each machine.
Average upload rate 	     460.45 KB/sec
Average download rate 	   29829.53 KB/sec
Average turnaround time 2.47 days


But they do not have this..

Speakeasy Speed Test
Your Results History
Timestamp 	   Download    Upload 	  Latency Jitter Quality Score Test Server
8/31/2022 16:34:2  78.97 Mbps  89.19 Mbps 8 ms     0 ms  Excellent     stosat-plfi-01.sys.comcast.net.prod.hosts.ooklaserver.net
8/31/2022 16:21:32 79.55 Mbps  89.79 Mbps 7 ms     1 ms  Excellent     speedgauge2.optonline.net.prod.hosts.ooklaserver.net
8/22/2022 14:47:11 81.07 Mbps  89.10 Mbps 7 ms     1 ms  Excellent     nyc.speedtest.clouvider.net.prod.hosts.ooklaserver.net


Which might they want?
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Jim1348

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Message 66023 - Posted: 31 Aug 2022, 21:23:30 UTC - in response to Message 65981.  

I wonder if Boinc has knowledge of your internet speed, and could send different types of task to different people? If not, there could always be a tickbox in preferences to accept enormous tasks.

We have asked for the ability to select the type of tasks we want for a long time. It seems to be against their ideology, which is always the most difficult to argue against.
But I for one won't attempt to mix enormous tasks with ordinary ones. They either select them based on what my machine can do, or allow me to select them.
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Mr. P Hucker

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Message 66024 - Posted: 31 Aug 2022, 21:28:44 UTC - in response to Message 66022.  
Last modified: 31 Aug 2022, 21:29:39 UTC

I wonder if Boinc has knowledge of your internet speed, and could send different types of task to different people?


Which internet speed? They have this for each machine.
Average upload rate 	     460.45 KB/sec
Average download rate 	   29829.53 KB/sec
Average turnaround time 2.47 days


But they do not have this..

Speakeasy Speed Test
Your Results History
Timestamp 	   Download    Upload 	  Latency Jitter Quality Score Test Server
8/31/2022 16:34:2  78.97 Mbps  89.19 Mbps 8 ms     0 ms  Excellent     stosat-plfi-01.sys.comcast.net.prod.hosts.ooklaserver.net
8/31/2022 16:21:32 79.55 Mbps  89.79 Mbps 7 ms     1 ms  Excellent     speedgauge2.optonline.net.prod.hosts.ooklaserver.net
8/22/2022 14:47:11 81.07 Mbps  89.10 Mbps 7 ms     1 ms  Excellent     nyc.speedtest.clouvider.net.prod.hosts.ooklaserver.net


Which might they want?
Either would do, and the first is fine, it's how well your computer tends to communicate with project servers.

If those are your results from the same computer, they're wrong. Or has Boinc confused KB/sec with Kb/sec? It wouldn't surprise me, it's bug-ridden crap. Your first results suggest you can get 240 Mbit.
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Jean-David Beyer

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Message 66025 - Posted: 1 Sep 2022, 2:23:27 UTC - in response to Message 66024.  

Either would do, and the first is fine, it's how well your computer tends to communicate with project servers.

If those are your results from the same computer, they're wrong. Or has Boinc confused KB/sec with Kb/sec? It wouldn't surprise me, it's bug-ridden crap. Your first results suggest you can get 240 Mbit.


They ARE from the same machine.

The first set of numbers are reported by the climateprediction.net if I ask it to describe my machine. I very much doubt the reported download speed. They should come out up to about 75 Megabits/second. So the reported download speed is manifestly wrong. Of course the servers may be slower than my connection, but not dramatocally faster. So 240 Megabits/sec is ridiculous.

By comparison, Rosetta reports:

Average upload rate 	343.51 KB/sec
Average download rate 	17994.96 KB/sec
Average turnaround time 	2.91 days 


which also reports download rate too fast.

The second set of numbers I believe. They measure the speeds to and from my machine to the servers in question. Two are in NYC, and one is somewhere in Northern New Jersey. I believe them as they are close to what I am paying for on Verizon FiOS.
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Mr. P Hucker

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Message 66026 - Posted: 1 Sep 2022, 3:33:06 UTC - in response to Message 66025.  
Last modified: 1 Sep 2022, 3:37:53 UTC

By comparison, Rosetta reports:

Average upload rate 	343.51 KB/sec
Average download rate 	17994.96 KB/sec
Average turnaround time 	2.91 days 


which also reports download rate too fast.

The second set of numbers I believe. They measure the speeds to and from my machine to the servers in question. Two are in NYC, and one is somewhere in Northern New Jersey. I believe them as they are close to what I am paying for on Verizon FiOS.
Boinc has a problem with kb and kB. A schoolboy error. It's full of them. Just divide the nonsense they give you by 8.

I have a real download speed of 32Mbit. CPDN reports this as 1507.35 KB/sec which equates to 11.8Mbit, which is feasable. Rosetta reports precisely the same! I'd say they were getting the numbers from the same source, but why are yours different?
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Jean-David Beyer

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Message 66028 - Posted: 1 Sep 2022, 12:01:13 UTC - in response to Message 66026.  

Boinc has a problem with kb and kB. A schoolboy error. It's full of them. Just divide the nonsense they give you by 8.

I have a real download speed of 32Mbit. CPDN reports this as 1507.35 KB/sec which equates to 11.8Mbit, which is feasable. Rosetta reports precisely the same! I'd say they were getting the numbers from the same source, but why are yours different?


If I look at Rosetta, it does not report the same numbers as does ClimatePrediction, but they are both wrong in similar ways.


CPDN claims:
Average upload rate 107.73 KB/sec
Average download rate 17059.98 KB/sec
Average turnaround time 2.47 days

Rosetta claims
Average upload rate 343.51 KB/sec
Average download rate 17994.96 KB/sec
Average turnaround time 2.91 days

MilkyWay claims
Average upload rate 132.27 KB/sec
Average download rate 25680.89 KB/sec
Average turnaround time 0.92 days

Universe claims
Average upload rate 109.65 KB/sec
Average download rate 15789.07 KB/sec
Average turnaround time 7.01 days

Which are the nonsense and which are correct?

I could believe those upload rates so I would multiply those numbers by 8 to get Kbits/sec, but the download rates are more likely to be Kbits/sec so they need to be divided by 1000, not 8. or maybe they should be divided by both; i.e., 8000.

It seems to me there is no reason for these speeds to be the same. They have different histories (over what period are they averaged?) There servers are in different places, their hardware can be presumed different... It should not surprise you that the turnaround times are different, since their work units certainly take different times and my priorities are set differently for each of them.

Here are the typical speeds I get with Speakeasy Speed Test. Now these servers are within less than 100 miles of me. I assume ClimatePrediction and Rosetta are further away from me and their servers may be slower.

Your Results History
Timestamp 	   Download   Upload 	 Latency Jitter Quality Score Test Server
9/1/2022 7:13:46   77.75 Mbps 89.10 Mbps 7 ms     2 ms  Excellent      stosat-plfi-01.sys.comcast.net.prod.hosts.ooklaserver.net
8/31/2022 16:34:2  78.97 Mbps 89.19 Mbps 8 ms     0 ms  Excellent      stosat-plfi-01.sys.comcast.net.prod.hosts.ooklaserver.net
8/31/2022 16:21:32 79.55 Mbps 89.79 Mbps 7 ms     1 ms  Excellent      speedgauge2.optonline.net.prod.hosts.ooklaserver.net

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Profile Dave Jackson
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Message 66029 - Posted: 1 Sep 2022, 12:27:54 UTC

Here are the typical speeds I get with Speakeasy Speed Test. Now these servers are within less than 100 miles of me. I assume ClimatePrediction and Rosetta are further away from me and their servers may be slower.


Downloads from CPDN are all from Oxford. Trickle ups also go to Oxford. Uploads can go to universities or data centres in lots of different locations around the world. The latest Windows ones going to Tasmania for instance. With my connection, it is only when there is a problem with a server that it is the limiting factor rather than my own connection but I get that for those with much faster connections that will not be the case.
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Message boards : Number crunching : Hardware requirements for upcoming models

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