1) Message boards : Number crunching : Show and tell your machine. Here's mine. (Message 1595527) Posted 1 Nov 2014 by Adrian Taylor Post: Heres my rather relaxed effort, it's number 7 in the top ten crunchers highest AMD based machine :-) 4 x 280X pulling 780 watts at the wall (240v) using a 1200w power supply. it runs a weather station and energy monitoring too Haven't suffered from any RF interference problems its parked next to two wireless routers and doesn't seem to affect anything. its pretty quiet too, that's the advantage of running caseless much cooler running I also undervolt all the GPUs to run cooler http://setiathome.berkeley.edu/hosts_user.php?userid=18807 [url]

2) Message boards : Number crunching : The ultimate build (Message 1585755) Posted 12 Oct 2014 by Adrian Taylor Post: You lot are so tidy :-)

3) Message boards : Number crunching : turn memory clock lower to decrease temp in an amd gpu? (Message 1585226) Posted 11 Oct 2014 by Adrian Taylor Post: in my experience undervolting amd gpus reduces power consumption which in turn reduces temperature you can do this with msi aftburner on my amd 280x cards the undervolt setting in afterburner is -80 your experience may vary my setup is headless and involves 4 x 280x

4) Message boards : Number crunching : CPU power required to drive 4 AMD GPU ? (Message 1583922) Posted 9 Oct 2014 by Adrian Taylor Post: i have already run SetiPerformance, thats why i was running three threads/GPU thanks for the info about cpu instances, i have done as you said and it looks like a little pressure has been relieved, still bouncing 80-90. it will be interesting what RAC is possible with this rig, somewhere in the top 40 i hope, although its all nvidia up there

5) Message boards : Number crunching : CPU power required to drive 4 AMD GPU ? (Message 1583912) Posted 9 Oct 2014 by Adrian Taylor Post: ah ha, the voice of experience Mike, thanks for taking the time to go have a look. i'm not going to spend on a new cpu so i will have to tune it over the following weeks, its all part of the fun those 280x are undervolted too to save energy, doesn't appear to make much difference in performance any idea is GPU Memory clock speed has much impact on overall crunching performance ?

6) Message boards : Number crunching : CPU power required to drive 4 AMD GPU ? (Message 1583903) Posted 9 Oct 2014 by Adrian Taylor Post: cheers thomas :-)

7) Message boards : Number crunching : CPU power required to drive 4 AMD GPU ? (Message 1583902) Posted 9 Oct 2014 by Adrian Taylor Post: great thanks for your input vyper i will have to wait for the RAC to even out and then do some comparisons i had no idea that some processing was done on CPU as well, i thought all the CPU did was hand the units out.. not sure of the mechanism of this. any suggestions as to what to read to further understand the process ?

8) Message boards : Number crunching : CPU power required to drive 4 AMD GPU ? (Message 1583894) Posted 9 Oct 2014 by Adrian Taylor Post: indeed i have no heating in my house so in winter i run computers instead. last year i mined and made money and the heating was paid for :-) the profitability of GPU mining stopped back in May here in the UK, due to energy prices it was a good run though made quite alot of money and still have a couple of machines left to heat the house this winter, shame i have to pay for it this time needless to say the celeron was more than up for the job of script mining

9) Message boards : Number crunching : CPU power required to drive 4 AMD GPU ? (Message 1583890) Posted 9 Oct 2014 by Adrian Taylor Post: yep its only a lowly celeron I thought the same about the number of instances on each gpu but even on a count of 1 the cpu pegs >90 the big question is , just how much of an impact on the actual crunching does this have ? if its simply adding small delays but the gpus are running an order of magnitude faster, does it really make a lot of real world difference ? thanks for the input

10) Message boards : Number crunching : CPU power required to drive 4 AMD GPU ? (Message 1583876) Posted 9 Oct 2014 by Adrian Taylor Post: Hi folks After a long sabaticle from seti I have just dedicated a machine to the cause again :-) it has 4 280X GPU and runs only GPU however the CPU is pegged at 90-100% this is not a worry as the machine is a dedicated headless cruncher I'm just pondering if the CPU is actually preventing maximum RAC potential or if this is pretty normal I havent used GPU for boinc before so it has many unknowns for me Cheers and well done for keeping the project running for 15 years ! i have only crunched for 14ish :-)

11) Message boards : Number crunching : V10 of modified SETI MB CUDA + opt AP package for full multi-GPU+CPU use (Message 869421) Posted 25 Feb 2009 by Adrian Taylor Post: great, many thanks for the info Raistmer im running v9 multi gpu now, and it seems to work as i want so far regards adrian

12) Message boards : Number crunching : V10 of modified SETI MB CUDA + opt AP package for full multi-GPU+CPU use (Message 869374) Posted 25 Feb 2009 by Adrian Taylor Post: ok, im stuck with 9 ap's running on my 8-core with v8-10 with mbs sitting there waiting for some cuda action, not very satisfactory i also want to return to mb on cuda only and optimised ap's on cpu only is there an edit to the app info that will allow this ? is so could someone kindly post the edit please boinc appears incapable of sharing the work in a logical manner, not suprising seeing as though we are trying to fool it :-) this is in no way detracting from your great work Raistmer :-) i just want a simpler setup regards adrian

13) Message boards : Number crunching : CUDA cards: SETI crunching speeds (Message 859845) Posted 30 Jan 2009 by Adrian Taylor Post: ok Richard less of this shirking, where are all the other nvidia cards like my 8800 GT ? nothing worse than a job half done lol :-) seriously though your work with these graphs over the last years has been invaluable , cheers

14) Message boards : Number crunching : Mac Cuda Client, any news ? (Message 859377) Posted 29 Jan 2009 by Adrian Taylor Post: in answer to my own question :-) BOINC 6 Versions Change Log cheers ! :-)

15) Message boards : Number crunching : Any idea when AP is gonna come back up ? (Message 859376) Posted 29 Jan 2009 by Adrian Taylor Post: for the last few days the amount of AP units distributed is practically zero all the AP splitters are offline according to server stats Matt mentioned in his technical news that sidious is having problems but what about Lando and Bambi (the AP splitters) so my poor 8-core is sitting there doing nowt ;-) So whats the story ? regards adrian

16) Message boards : Number crunching : Mac Cuda Client, any news ? (Message 858868) Posted 28 Jan 2009 by Adrian Taylor Post: my crystal ball gazing is helped somewhat by your response ML1, cheers i'm not complaining that there is no mac cuda client yet, just interested my 8-core mac pro 8800GT combo is running windows 7 beta at the mo, so can utilise the cuda client for windows. dunno quite how long i can run win7 before going potty though :-) my main problem running cuda and AP on the same machine is the lack of AP work units...the cuda side of things seems pretty stable now, after a few tweaks in the cuda code in recent days thanks again regards adrian

17) Message boards : Number crunching : Mac Cuda Client, any news ? (Message 858663) Posted 27 Jan 2009 by Adrian Taylor Post: im gonna bump this as someone , somewhere must know something :-)

18) Message boards : Number crunching : Mac Cuda Client, any news ? (Message 856444) Posted 22 Jan 2009 by Adrian Taylor Post: I know they say a mac cuda app is in the works. Is there anyway to find out the state of progress, and if they need beta testers (im up for it) any news anyone ? regards adrian

19) Message boards : Number crunching : Modified SETI MB CUDA + opt AP package for full GPU utilization (Message 853074) Posted 13 Jan 2009 by Adrian Taylor Post: i cant update the drivers as its windows 7 beta, and nvidia just say use the ones that came with the ms install i'm happy to stay with the previous version for now and wait for nvidia to come up with goods, unless installing vista graphics drivers is possible keep up the good work :-)

20) Message boards : Number crunching : Modified SETI MB CUDA + opt AP package for full GPU utilization (Message 852948) Posted 13 Jan 2009 by Adrian Taylor Post: been running v4 of this on my mac pro 8800 GT in windows 7 beta, and all was well just updated to opt_package_V5.rar and allthe cuda units errored with the following: <core_client_version>6.5.0</core_client_version> <![CDATA[ <message> Incorrect function. (0x1) - exit code 1 (0x1) </message> <stderr_txt> setiathome_CUDA: Found 1 CUDA device(s): Device 1 : GeForce 8800 GT totalGlobalMem = 536870912 sharedMemPerBlock = 16384 regsPerBlock = 8192 warpSize = 32 memPitch = 262144 maxThreadsPerBlock = 512 clockRate = 1500000 totalConstMem = 65536 major = 1 minor = 1 textureAlignment = 256 deviceOverlap = 0 multiProcessorCount = 14 setiathome_CUDA: CUDA Device 1 specified, checking... Device 1: GeForce 8800 GT is okay SETI@home using CUDA accelerated device GeForce 8800 GT Rise priority modification by Raistmer based on rev400 of SETI@home sources Priority of worker thread rised successfully Total GPU memory 536870912 free GPU memory 492306432 setiathome_enhanced 6.02 Visual Studio/Microsoft C++ libboinc: 6.3.22 Work Unit Info: ............... WU true angle range is : 2.430996 Optimal function choices: ----------------------------------------------------- name ----------------------------------------------------- v_BaseLineSmooth (no other) v_GetPowerSpectrum 0.00018 0.00000 v_ChirpData 0.01625 0.00000 v_Transpose4 0.01086 0.00000 FPU opt folding 0.00221 0.00000 Cuda error 'cudaMemcpyToSymbol(cudaAcc_GaussFit_settings, (void*) &settings, sizeof(settings))' in file 'd:/BTR/seticuda/seti_boinc/client/cuda/cudaAcc_gaussfit.cu' in line 454 : invalid device symbol. </stderr_txt> ]]> went back to V4 and all is well again, hope this helps ;-) thanks for the efforts Raistmer (and of course all the others in this continuing saga) regards adrian

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