VLAR change

Message boards : Technical News : VLAR change

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Author	Message
Jeff Cobb Volunteer moderator Project administrator Project developer Project scientist Send message Joined: 1 Mar 99 Posts: 108 Credit: 40,367 RAC: 0	Message 1015702 - Posted: 14 Jul 2010, 23:06:04 UTC
	We are beta testing a change whereby VLAR WUs are not scheduled onto GPUs. We hope to move this to the main project next week. ____________
	ID: 1015702 ·

Claggy Volunteer tester Send message Joined: 5 Jul 99 Posts: 3365 Credit: 25,951,744 RAC: 1,177	Message 1015704 - Posted: 14 Jul 2010, 23:13:18 UTC - in response to Message 1015702.
	Thanks for the update Jeff, Claggy
	ID: 1015704 ·

Zeus Fab3r Send message Joined: 17 Jan 01 Posts: 639 Credit: 57,056,436 RAC: 79,604	Message 1015711 - Posted: 14 Jul 2010, 23:27:08 UTC
	This is indeed a good news, thanks Jeff. ____________ Who the hell is General Failure and why is he reading my harddisk?¿
	ID: 1015711 ·

soft^spirit Send message Joined: 18 May 99 Posts: 6231 Credit: 27,516,513 RAC: 8,959	Message 1015721 - Posted: 15 Jul 2010, 0:22:16 UTC - in response to Message 1015702.
	thank you thank you thank you for testing it first!!! :D ____________ Janice
	ID: 1015721 ·

jravin Send message Joined: 25 Mar 02 Posts: 717 Credit: 61,305,715 RAC: 70,585	Message 1015729 - Posted: 15 Jul 2010, 1:12:18 UTC - in response to Message 1015702.
	We are beta testing a change whereby VLAR WUs are not scheduled onto GPUs. We hope to move this to the main project next week. Excellent! Thank you so much! Good job. ____________
	ID: 1015729 ·

[seti.international] Philip J. Fry Volunteer tester Send message Joined: 6 Apr 07 Posts: 6568 Credit: 50,787,844 RAC: 20,636	Message 1015746 - Posted: 15 Jul 2010, 2:37:52 UTC - in response to Message 1015702. Last modified: 15 Jul 2010, 2:44:47 UTC
	We are beta testing a change whereby VLAR WUs are not scheduled onto GPUs. We hope to move this to the main project next week. Thank you very much! *thumb up* BTW. Which BOINC version at least is needed for this function? Or is the BOINC version not important? [EDIT: This means 0.12x+ ARs only to GPUs?] ____________ >Das Deutsche Cafe. The German Cafe.<
	ID: 1015746 ·

Josef W. Segur Volunteer developer Volunteer tester Send message Joined: 30 Oct 99 Posts: 3932 Credit: 934,327 RAC: 15	Message 1015747 - Posted: 15 Jul 2010, 2:45:59 UTC - in response to Message 1015746. Last modified: 15 Jul 2010, 2:47:44 UTC
	... Which BOINC version at least is needed for this function? Or is the BOINC version not important? It's a BOINC server code change. BOINC core client doesn't matter. Edit: Yes, the criteria is at 0.12 AR. Joe
	ID: 1015747 ·

Geek@Play Volunteer tester Send message Joined: 31 Jul 01 Posts: 2414 Credit: 79,016,596 RAC: 0	Message 1015754 - Posted: 15 Jul 2010, 3:42:20 UTC Last modified: 15 Jul 2010, 3:43:25 UTC
	Excellent!! ____________ Boinc....Boinc....Boinc....Boinc....
	ID: 1015754 ·

Wedge009 Volunteer tester Send message Joined: 3 Apr 99 Posts: 199 Credit: 56,673,270 RAC: 153,448	Message 1015812 - Posted: 15 Jul 2010, 11:46:56 UTC
	Thanks for this. Just a question about the 0.12 upper AR limit, though. I had a bunch of WUs a short while back that were about 0.18 AR, and they were quite slow on the GPU as well. Well, I suppose even if the limit is hard-coded, it's still better than the current state of allowing VLAR WUs through to the GPU. ____________ Soli Deo Gloria
	ID: 1015812 ·

PhonAcq Send message Joined: 14 Apr 01 Posts: 1620 Credit: 20,876,516 RAC: 4,626	Message 1015815 - Posted: 15 Jul 2010, 12:02:54 UTC - in response to Message 1015721.
	thank you thank you thank you for testing it first!!! :D Yes, please test the heck out of it.
	ID: 1015815 ·

PhonAcq Send message Joined: 14 Apr 01 Posts: 1620 Credit: 20,876,516 RAC: 4,626	Message 1015816 - Posted: 15 Jul 2010, 12:08:01 UTC
	Of course, this change will mean that we non-GPUers' will suffer, won't it? Actually the question is whether we non-GPU hosts will get a fair credit for dealing with the more difficult wu's. Conversely, will there be enough wu's produced to keep the GPUers' happy, because the VLAR bottleneck will essentially vanish? And, finally, does this change have any implication for the AP crunchers?
	ID: 1015816 ·

Bill Walker Send message Joined: 4 Sep 99 Posts: 2866 Credit: 1,779,323 RAC: 237	Message 1015820 - Posted: 15 Jul 2010, 12:16:55 UTC - in response to Message 1015816.
	Of course, this change will mean that we non-GPUers' will suffer, won't it? Doens't it mean that the VLARs will only go to CPUs? That should mean a larger pool of WUs for us non-GPU crunchers to chase. ____________
	ID: 1015820 ·

Link Send message Joined: 18 Sep 03 Posts: 671 Credit: 1,185,971 RAC: 739	Message 1015821 - Posted: 15 Jul 2010, 12:17:29 UTC - in response to Message 1015816.
	Of course, this change will mean that we non-GPUers' will suffer, won't it? Actually the question is whether we non-GPU hosts will get a fair credit for dealing with the more difficult wu's. Actually after my calculations VLARs are the best paid WUs on CPU. Here example for my AthlonXP 2000+: - VLAR (< 0.013): about 350 CPU-seconds / 1Cr - AR ~ 0.38: about 365 CPU-seconds / 1Cr - AR ~ 0.4x: about 470 CPU-seconds / 1Cr - VHAR: about 500-700 CPU-seconds / 1Cr ____________ .
	ID: 1015821 ·

Bill Walker Send message Joined: 4 Sep 99 Posts: 2866 Credit: 1,779,323 RAC: 237	Message 1015828 - Posted: 15 Jul 2010, 12:30:38 UTC - in response to Message 1015821. Last modified: 15 Jul 2010, 12:30:54 UTC
	Woohoo! Send me your VLARS please. ____________
	ID: 1015828 ·

Fred J. Verster Volunteer tester Send message Joined: 21 Apr 04 Posts: 3232 Credit: 31,585,541 RAC: 1	Message 1015862 - Posted: 15 Jul 2010, 14:56:10 UTC - in response to Message 1015828.
	Actually after my calculations VLARs are the best paid WUs on CPU. Here example for my AthlonXP 2000+: - VLAR (< 0.013): about 350 CPU-seconds / 1Cr - AR ~ 0.38: about 365 CPU-seconds / 1Cr - AR ~ 0.4x: about 470 CPU-seconds / 1Cr - VHAR: about 500-700 CPU-seconds / 1Cr Are these figures, really all from your AthlonXP 2000+ , on my Q6600's, it's vice versa. OTOH, I never crunch VHAR's on CPU. Ehh, sorry I didn't pay attention to the credits per seconds, not really interrested in credits, only processing time, credits have a low priority, in my crunching ability/scheme. And you've little influence on the Angle Range of WU's sended to you, maybe this will change if the new AR-Function-Scheduler, is in place and works as it supposed to. Then you would be able to ask only work for CPU (<0.013 AR) or GPU (>0.013 AR). ____________ Knight Who Says Ni N!, OUT numbered.................
	ID: 1015862 ·

hiamps Volunteer tester Send message Joined: 23 May 99 Posts: 4292 Credit: 72,622,237 RAC: 31,745	Message 1015873 - Posted: 15 Jul 2010, 15:34:21 UTC - in response to Message 1015816.
	Of course, this change will mean that we non-GPUers' will suffer, won't it? Actually the question is whether we non-GPU hosts will get a fair credit for dealing with the more difficult wu's. Conversely, will there be enough wu's produced to keep the GPUers' happy, because the VLAR bottleneck will essentially vanish? And, finally, does this change have any implication for the AP crunchers? Seems most of us with GPU's also have CPU's in our machines...Why would you do all the hard work? ____________ Official Abuser of Boinc Buttons... And no good credit hound!
	ID: 1015873 ·

PhonAcq Send message Joined: 14 Apr 01 Posts: 1620 Credit: 20,876,516 RAC: 4,626	Message 1015875 - Posted: 15 Jul 2010, 15:40:17 UTC - in response to Message 1015873.
	Obviously, I'm addressing the relative amount of work for the host in total.
	ID: 1015875 ·

PhonAcq Send message Joined: 14 Apr 01 Posts: 1620 Credit: 20,876,516 RAC: 4,626	Message 1015878 - Posted: 15 Jul 2010, 15:45:14 UTC - in response to Message 1015820.
	Of course, this change will mean that we non-GPUers' will suffer, won't it? Doens't it mean that the VLARs will only go to CPUs? That should mean a larger pool of WUs for us non-GPU crunchers to chase. Not understanding this reply. There are cpu only and gpu+cpu crunchers. If the VLAR's are blocked from the gpu's, then the non-VLAR wu's will be sopped up by the gpu's, leaving the cpu's with a strongly biased ratio of VLAR's. I suppose it's a sh.ty job, but someone has to do it.
	ID: 1015878 ·

[seti.international] Philip J. Fry Volunteer tester Send message Joined: 6 Apr 07 Posts: 6568 Credit: 50,787,844 RAC: 20,636	Message 1015879 - Posted: 15 Jul 2010, 15:48:27 UTC
	BTW. Nice to know that the admins have an opened ear for suggestions of the members for to make better the project (for to get the max performance of all hosts for accelerated science).. Who said this won't work? X-D O.K., now I can switch on again my PC.. :o) ____________ >Das Deutsche Cafe. The German Cafe.<
	ID: 1015879 ·

[seti.international] Philip J. Fry Volunteer tester Send message Joined: 6 Apr 07 Posts: 6568 Credit: 50,787,844 RAC: 20,636	Message 1015885 - Posted: 15 Jul 2010, 15:53:32 UTC
	Current I can't post some examples of my E7600, because the new Cr.-System isn't finished balanced. But, AFAIK, the VLAR WUs get more Cr./hour on CPU, than normal AR WUs. So CPU only (and of course CPU & GPU) hosts will have increased RAC. This isn't well? ____________ >Das Deutsche Cafe. The German Cafe.<
	ID: 1015885 ·

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Message boards : Technical News : VLAR change