Why use CPU on SETi@home?

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Richard Haselgrove Project Donor
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Message 1695135 - Posted: 24 Jun 2015, 12:44:26 UTC - in response to Message 1695113.  

I think this says a lot.

Windows/x86 7.00 29 May 2013, 21:14:00 UTC 238,069 GigaFLOPS
Windows/x86 7.00 (cuda22) 29 May 2013, 22:56:08 UTC 403 GigaFLOPS
Windows/x86 7.00 (cuda23) 29 May 2013, 22:56:08 UTC 7,267 GigaFLOPS
Windows/x86 7.00 (cuda32) 29 May 2013, 22:56:08 UTC 16,644 GigaFLOPS
Windows/x86 7.00 (cuda42) 29 May 2013, 22:56:08 UTC 55,494 GigaFLOPS
Windows/x86 7.00 (cuda50) 29 May 2013, 22:56:08 UTC 109,443 GigaFLOPS
Windows/x86 7.03 (opencl_ati5_cat132) 30 May 2013, 0:18:19 UTC 6,171 GigaFLOPS
Windows/x86 7.03 (opencl_ati5_nocal) 30 May 2013, 0:18:19 UTC 3,502 GigaFLOPS
Windows/x86 7.03 (opencl_ati5_sah) 30 May 2013, 0:18:19 UTC 534 GigaFLOPS
Windows/x86 7.03 (opencl_ati_cat132) 30 May 2013, 0:18:19 UTC 20,617 GigaFLOPS
Windows/x86 7.03 (opencl_ati_nocal) 14 Jun 2014, 0:07:38 UTC 3,894 GigaFLOPS
Windows/x86 7.03 (opencl_ati_sah) 30 May 2013, 0:18:19 UTC 1,912 GigaFLOPS
Windows/x86

For those not familiar with it, Mike has taken those figures - which are a current/recent snapshot only - from the Applications page. It's interesting to summarise them:

Multibeam
----------		
CPU		238,175	GigaFLOPS
Nvidia		189,259	
ATI		36,635	
Intel_GPU	13,120	
		
Astropulse
----------		
CPU		191	GigaFLOPS
Nvidia		737	
ATI		388	
Intel_GPU	67	

You can tell we've not been doing much AP recently...
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Message 1695136 - Posted: 24 Jun 2015, 12:45:35 UTC

My main i5 rig runs all 4 cores while feeding its 2 GPU's 3 tasks each while my other i5 rig runs 3 cores while feeding its 3 GPU 2 tasks each.

I only do MB's on my GPU's while I'll run AP's on my CPU cores when I can get them, MB's otherwise.

I'll let my RAC do the talking, need I say more?

Cheers.
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Profile Mike Special Project $75 donor
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Message 1695140 - Posted: 24 Jun 2015, 13:04:13 UTC

Richard.
Seti V7 is only available for 2 years so its a valid point.

@Wiggo.
I could but don`t want to.


With each crime and every kindness we birth our future.
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Message 1695150 - Posted: 24 Jun 2015, 14:15:56 UTC

It is like saying: "Ban all bicycles: Cars are much faster and can carry more."

They have their place and value and nobody - except ignorant people -would doubt that.
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qbit
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Message 1695162 - Posted: 24 Jun 2015, 14:41:39 UTC

BTW: I'm still waiting for quantum computers. Was hoping to get one for free for my participation in Aqua@home but until now they didn't send it :-(
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Profile HAL9000
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Message 1695235 - Posted: 24 Jun 2015, 18:34:42 UTC - in response to Message 1695135.  

For those not familiar with it, Mike has taken those figures - which are a current/recent snapshot only - from the Applications page. It's interesting to summarise them:

Multibeam
----------		
CPU		238,175	GigaFLOPS
Nvidia		189,259	
ATI		36,635	
Intel_GPU	13,120	
		
Astropulse
----------		
CPU		191	GigaFLOPS
Nvidia		737	
ATI		388	
Intel_GPU	67	

You can tell we've not been doing much AP recently...

Which tells us the work being done between CPUs & GPUs comes out pretty even right now.
CPU 49.912089%
GPU 50.087910%

It is interesting to take the totals from the MB app averages & then figure in the 170,150 active hosts.
The average SETI@home host is a system with a CPU producing 1.401029 GFLOPs & GPU producing 1.405965 GFLOPs.
Using the data from the CPU models list. Here are some of the CPUs that fall in that performance range:
    Intel(R) Pentium(R) M processor 1.73GHz [Family 6 Model 13 Stepping 8]
    Intel(R) Pentium(R) 4 CPU 2.93GHz [Family 15 Model 3 Stepping 4]
    AMD Athlon(tm) XP Processor 3000+ [Family 15 Model 12 Stepping 0]

My averages are obviously skewed. Given several things. Like active hosts that only run AP instead of MB, & the percentage of hosts that have a useable GPU by SETI@home. However I still found it interesting.


SETI@home classic workunits: 93,865 CPU time: 863,447 hours
Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[
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Message 1695246 - Posted: 24 Jun 2015, 19:28:18 UTC

I'm Letting My Rac Do Da Talkin'.

'It' Says: I Don't Give A Shat.

CPU, for me, means. less Energy and Less Heat.

WinterTime I Let My HeatPump and Under 40 Degrees, My Oil Burner Do Da Talkin'. 115 Volt CPU or GPU 'Heat', Don't 'Klik' with me.

Dat's Why I Run CPU.

Got 'it'?

GOoD.

Yep

May we All have a METAMORPHOSIS. REASON. GOoD JUDGEMENT and LOVE and ORDER!!!!!
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Message 1695703 - Posted: 25 Jun 2015, 22:05:24 UTC - in response to Message 1695150.  

It is like saying: "Ban all bicycles: Cars are much faster and can carry more."

They have their place and value and nobody - except ignorant people -would doubt that.

Nope....I'm saying:
"bicycles r OK, but lately all bicycles come with el.motor or u can buy a full motorcycle...so why use bicycle?"

also, some could check total sum of CPUs, & total sum of GPUs...I bet there are fewer GPUs than CPUs...
;)


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Message 1695715 - Posted: 25 Jun 2015, 22:27:42 UTC - in response to Message 1695703.  

also, some could check total sum of CPUs, & total sum of GPUs...I bet there are fewer GPUs than CPUs...


Every computer has a display, so it has at least 1 gpu and 1 cpu.
But some people put 2,3,4 or more GPUs in one computer.

Therefore more GPUs out there than CPUs.
An i mean physical chips, not cores or virtual cores.If you count those,that makes the number of GPUs even bigger relative to CPUs.
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Karl Öberg

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Message 1695717 - Posted: 25 Jun 2015, 22:30:12 UTC

I saw your profile KLiK your average is not that high considering you are using gpu only. Myself Im running almost only cpu considering my gtx 570 is to noisy. Btw this is My first post been running seti since 1999. ;-) big fan of the X-files
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Profile MOMMY: He is MAKING ME Read His Posts Thoughts and Prayers. GOoD Thoughts and GOoD Prayers. HATERWORLD Vs THOUGHTs and PRAYERs World. It Is a BATTLE ROYALE. Nobody LOVEs Me. Everybody HATEs Me. Why Don't I Go Eat Worms. Tasty Treats are Wormy Meat. Yes
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Message 1695777 - Posted: 26 Jun 2015, 2:35:52 UTC

Guy The Great Said:

10) Running one CPU only computer allows me to remain attached to seti@home in a minimal way.

That's why I'm running CPU only.


Hey Guy, Long Time No Read.

GOod To See Your Type 'Face' Again.

Remember, Vote Early and Often.

Yoga Power.

Yep.

May we All have a METAMORPHOSIS. REASON. GOoD JUDGEMENT and LOVE and ORDER!!!!!
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KLiK
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Message 1695840 - Posted: 26 Jun 2015, 6:34:56 UTC - in response to Message 1695715.  

also, some could check total sum of CPUs, & total sum of GPUs...I bet there are fewer GPUs than CPUs...


Every computer has a display, so it has at least 1 gpu and 1 cpu.
But some people put 2,3,4 or more GPUs in one computer.

Therefore more GPUs out there than CPUs.
An i mean physical chips, not cores or virtual cores.If you count those,that makes the number of GPUs even bigger relative to CPUs.

as opposed to those that don't have a viable GPUs 4 crunching...or don't do GPU calcs, 'cause they GPUs r power GOBLINS that consume like a stows!
:D


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Message 1949004 - Posted: 11 Aug 2018, 14:55:11 UTC
Last modified: 11 Aug 2018, 14:55:23 UTC

I have a ulefone smart phone that has 8 processors and runs both SETI@home and Einstein@home CPU tasks. It has also an onboard GPU which is now not used.
Tullio
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Message boards : Number crunching : Why use CPU on SETi@home?


 
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