devlin85
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/25 17:48:02
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Can these llr tasks use more than 4 cores efficiently?
Currently running llrMEGA on my dual e5-2680 rig (16 cores, HT off). I was running 2 tasks on 8 cores each. So one task per actual CPU. 45-60 minutes for each task. Just made it run 4 tasks on 4 cores each and they are still finishing at 45-60 minutes..
Wish I would have noticed this earlier.. like 25 days ago..
"Science is much more than a body of knowledge. It is a way of thinking. This is central to its success. Science invites us to let the facts in, even when they don’t conform to our preconceptions." -Carl Sagan 
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devlin85
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/25 17:48:17
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"Science is much more than a body of knowledge. It is a way of thinking. This is central to its success. Science invites us to let the facts in, even when they don’t conform to our preconceptions." -Carl Sagan
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bcavnaugh
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/25 17:57:23
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devlin85
Can these llr tasks use more than 4 cores efficiently?
Currently running llrMEGA on my dual e5-2680 rig (16 cores, HT off). I was running 2 tasks on 8 cores each. So one task per actual CPU. 45-60 minutes for each task. Just made it run 4 tasks on 4 cores each and they are still finishing at 45-60 minutes..
Wish I would have noticed this earlier.. like 25 days ago..
On Older and or Slower CPU's Yes. I added that info here https://forums.evga.com/FindPost/2926553
post edited by bcavnaugh - 2019/02/25 18:05:18
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devlin85
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/25 18:00:00
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bcavnaugh
On Older and or Slower CPU's Yes.
  It was sure taking up 100% of the resources, but literally making no difference. weird.
post edited by devlin85 - 2019/02/25 18:02:23
"Science is much more than a body of knowledge. It is a way of thinking. This is central to its success. Science invites us to let the facts in, even when they don’t conform to our preconceptions." -Carl Sagan
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bcavnaugh
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/25 18:11:39
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devlin85
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/25 18:21:44
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"Science is much more than a body of knowledge. It is a way of thinking. This is central to its success. Science invites us to let the facts in, even when they don’t conform to our preconceptions." -Carl Sagan
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bcavnaugh
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/25 18:30:45
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devlin85
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/25 18:39:22
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bcavnaugh
The Top One was Faster 3,101.00 -v- 3,240.00
Intel(R) Xeon(R) CPU E5-2680 0 @ 2.70GHz [Family 6 Model 45 Stepping 7] ((Your HT is Enabled)
Disable it and run 2 MT4 and then test MT8 to see the Speed difference between HT being on and Off.
I'd say 2 minute difference for half the work is not "faster". Lol. And Hyperthreading IS off. 16 logical processors, 16 cores.
Attached Image(s)
"Science is much more than a body of knowledge. It is a way of thinking. This is central to its success. Science invites us to let the facts in, even when they don’t conform to our preconceptions." -Carl Sagan
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devlin85
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/25 18:56:11
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"Science is much more than a body of knowledge. It is a way of thinking. This is central to its success. Science invites us to let the facts in, even when they don’t conform to our preconceptions." -Carl Sagan
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bcavnaugh
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/25 18:59:53
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devlin85
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/25 19:01:21
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Did you look at the picture above? 16 cores. 16 logical. It would say 32 logical if HT was enabled.
"Science is much more than a body of knowledge. It is a way of thinking. This is central to its success. Science invites us to let the facts in, even when they don’t conform to our preconceptions." -Carl Sagan
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devlin85
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/25 19:05:51
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"Science is much more than a body of knowledge. It is a way of thinking. This is central to its success. Science invites us to let the facts in, even when they don’t conform to our preconceptions." -Carl Sagan
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bcavnaugh
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/25 19:07:56
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devlin85
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/25 19:14:35
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"Science is much more than a body of knowledge. It is a way of thinking. This is central to its success. Science invites us to let the facts in, even when they don’t conform to our preconceptions." -Carl Sagan
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bcavnaugh
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/25 19:41:53
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Only a Little Bit 
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bcavnaugh
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/25 19:45:12
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Windows Server really is only needed with 4 or more Processors.
But I do remember someone posted about an upcoming version of Windows 10 Pro and Below will not Support 2 Processors and will have to go to Windows 10 Workstation.
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devlin85
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/25 19:47:47
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bcavnaugh
Windows Server really is only needed with 4 or more Processors.
But I do remember someone posted about an upcoming version of Windows 10 Pro and Below will not Support 2 Processors and will have to go to Windows 10 Workstation.
looking at this page is casing some concern especially the part that says: *** Intel Xeon processors are supported on Windows 10 Pro for Workstations and Windows 10 Enterprise only yet it list xeon as being supported in every version.. but has *** after it.. confusing!!! and I'm currently up and running with no errors and completely stable (for 2+ years now). What in the **** windows???
post edited by devlin85 - 2019/02/25 20:28:11
"Science is much more than a body of knowledge. It is a way of thinking. This is central to its success. Science invites us to let the facts in, even when they don’t conform to our preconceptions." -Carl Sagan
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planetclown
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devlin85
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/26 09:43:43
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 She jus can't handle the 8 cores! 
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bill1024
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/26 10:05:10
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LLRMEGA tasks are not very big for being mega and do not scale real well.
Add in the fact the e5-26xx Xeons have a good size (20mb)L3 cache that most likely fits 2 tasks.
You can try running 3 or 4 on each CPU and see how well it scales and if it fits in the cache.
If you have a fast processor and fast mem in quad channel you may want to run one task per core
The e5-26xx CPUs do not have FMA3, if the CPU has FMA3, that is what will be used over AVX.x
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bcavnaugh
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/26 10:27:59
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Forgot about this Stderr output <core_client_version>7.14.2</core_client_version> <![CDATA[ <stderr_txt> BOINC llr wrapper (version 8.00) Using Jean Penne's llr (64 bit) LLR Program - Version 3.8.21, using Gwnum Library Version 28.14 LLR command line: primegrid_cllr.exe -d -oDiskWriteTime=1 -oThreadsPerTest=8 llr.in Using all-complex FMA3 FFT length 120K, Pass1=384, Pass2=320, 8 threads, a = 5 18:57:50 (3020): called boinc_finish </stderr_txt> ]]> Stderr output <core_client_version>7.6.33</core_client_version> <![CDATA[ <stderr_txt> BOINC llr wrapper (version 8.00) Using Jean Penne's llr (64 bit) LLR Program - Version 3.8.21, using Gwnum Library Version 28.14 LLR command line: primegrid_cllr.exe -d -oDiskWriteTime=1 -oThreadsPerTest=4 llr.in Using all-complex AVX FFT length 240K, Pass1=1280, Pass2=192, 4 threads, a = 3 19:14:00 (18440): called boinc_finish </stderr_txt> ]]> or Stderr output <core_client_version>7.9.3</core_client_version> <![CDATA[ <stderr_txt> BOINC llr wrapper (version 8.00) Using Jean Penne's llr (64 bit) LLR Program - Version 3.8.21, using Gwnum Library Version 28.14 LLR command line: primegrid_llr -d -oDiskWriteTime=1 -oThreadsPerTest=5 llr.in Using all-complex AVX FFT length 120K, Pass1=384, Pass2=320, 5 threads, a = 3 10:48:51 (25742): called boinc_finish(0) </stderr_txt> ]]> <core_client_version>7.14.2</core_client_version> Windows <core_client_version>7.9.3</core_client_version> Ubuntu 18.04.2 LTS Why an old version? <core_client_version>7.6.33</core_client_version> Windows 7.14.2 is the current BOINC Client Software for Windows
post edited by bcavnaugh - 2019/02/26 10:35:17
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bcavnaugh
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/26 12:57:06
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devlin85
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/27 00:44:05
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I'm giving it a shot.. and it just downloaded about 2 hours of work right after installing. what the whaaaaat! why can't it ever pay attention to configs. Even ignored the .001 days........ it reset the overide prefs.... booo boinc!!!!!!
post edited by devlin85 - 2019/03/01 10:09:57
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bcavnaugh
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/02/27 18:43:47
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Be carful on your wording here.
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devlin85
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/03/01 10:12:07
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Good effort everybody! Great job on that 15 @ bcavnaugh! I at least got 2 
"Science is much more than a body of knowledge. It is a way of thinking. This is central to its success. Science invites us to let the facts in, even when they don’t conform to our preconceptions." -Carl Sagan
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bcavnaugh
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/03/01 15:54:57
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Yep! Great Run Team, Primes are still coming in so I will wait a few days to update the ending Pie.
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Opolis
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Re: 2019 Tour de Primes For the month of February, an informal competition is offered
2019/03/02 06:43:06
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No Primes for me yet again. First time I stuck it out the entire month though.
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