Posts by HAL9000

21) Message boards : Number crunching : RX 480 OpenCL Question (Message 1863029)
Posted 22 Apr 2017 by Profile HAL9000
Post:
Latest parameters:

-v 1 -pref_wg_size 256 -sbs 1408 -hp -instances_per_device 2 -no_cpu_lock -high_perf -no_use_sleep -tune 1 256 1 1 -period_iterations_num 9 -tt 400 -spike_fft_thresh 4096 -oclfft_tune_gr 256 -oclfft_tune_lr 16 -oclfft_tune_wg 256 -oclfft_tune_ls 2048 -oclfft_tune_bn 64 -oclfft_tune_cw 64

A strange anomaly has appeared, BOINC is now reporting this:

4/22/2017 12:02:00 AM | | OpenCL: AMD/ATI GPU 0: Radeon (TM) RX 480 Graphics (driver version 2348.3, device version OpenCL 2.0 AMD-APP (2348.3), 7536MB, 7536MB available, 5949 GFLOPS peak)
4/22/2017 12:02:00 AM | | [coproc] No NVIDIA library found
4/22/2017 12:02:00 AM | | [coproc] calInit() returned 1
4/22/2017 12:02:00 AM | | [coproc] clGetDeviceInfo failed to get CL_DEVICE_SIMD_PER_COMPUTE_UNIT_AMD for device 0

For some reason, I have lost 656MB. Upgraded driver from 17.4.1 to 17.4.3. but the OpenCL driver version is the same in both.

I have seen the amount of memory reported by BOINC change with the driver several times over the years.
Since it didn't seem to actually effect anything I didn't worry about it.
22) Message boards : Number crunching : Welcome to the 18 Year Club! (Message 1862566)
Posted 20 Apr 2017 by Profile HAL9000
Post:
I just realized that this will be my 18th year for SETI@home!

Welcome to the 17 Year Club!
Welcome to the 16 Year Club!
Welcome to the 15 Year Club!
Welcome to the 14 Year Club!
Welcome to the 13 Year Club!
Welcome to the 12 Year Club!
Welcome to the 11 Year Club!
Welcome to the 10 Year Club!
Welcome to the 9 Year Club!
Welcome to the 8 Year Club!
Welcome to the 7 Year Club!
23) Message boards : Number crunching : RX 480 OpenCL Question (Message 1862366)
Posted 19 Apr 2017 by Profile HAL9000
Post:
Hello. I am trying to figure out, where to put all those parameters. boinc, boinccmd and boincmgr does not accept those parameters.
Also, is this for windows or linux?

Trying to use my RX 480 on ubuntu linux (opencl is working also), the log says "Requesting new tasks for CPU and AMD/ATI GPU", but i only get cpu tasks.

As per ReadMe_MultiBeam_OpenCL.txt
Command line switches can be used either in app_info.xml or mb_cmdline.txt.
Params in mb_cmdline*.txt will override switches in <cmdline> tag of app_info.xml.

I believe it is the same for both Windows and Linux.
24) Message boards : Number crunching : Microsoft Monthly Rollups (Message 1862282)
Posted 19 Apr 2017 by Profile HAL9000
Post:
Unofficial Windows 7/8.1 update workaround posted to GitHub

GitHub user Zeffy has created a patch that removes a limitation that Microsoft imposed on users of 7th generation processors, a limit that prevents users from receiving Windows updates if they still use Windows 7 and 8.1.

This limitation was delivered through Windows Update KB4012218 (March 2017 Patch Tuesday) and has made many owners of Intel Kaby Lake and AMD Bristol Ridge CPUs very angry last week, as they weren't able to install any Windows updates.


There is a link to the GitHub scripts in the article. Use at own risk. :^)

Caveat:

"The only downside of these solutions is you have to apply a new patch whenever wuaueng.dll gets updated," says Zeffy in his GitHub repo README. Fortunately, the entire task doesn't take long to complete.

Sounds like removing KB4012218 would be a better option.
25) Message boards : Number crunching : Microsoft Monthly Rollups (Message 1861933)
Posted 16 Apr 2017 by Profile HAL9000
Post:
You can always manually download updates from http://catalog.update.microsoft.com

To my knowledge to be able to download updates manually you have to know the update number starting with KB

You just type what you are looking for into the search box. Give this a try: Windows 7 Rollup 2017
26) Message boards : Number crunching : Why are the benchmark results under Ubuntu/linux are nearby doubled ? (Message 1861908)
Posted 16 Apr 2017 by Profile HAL9000
Post:
Hey, i am running this host on Beta:

https://setiweb.ssl.berkeley.edu/beta/show_host_detail.php?hostid=82307

Now watch this under Windows 10...unbelievable...

https://setiweb.ssl.berkeley.edu/beta/show_host_detail.php?hostid=81991

Never noticed this before, I'll never crunch under windows again...

Greetings.

Can be closed must have been a database error, i am clueless !?

I guess you are referring to the benchmarks? Which are mostly meaningless.
The benchmark values can vary greatly just between versions of BOINC.
27) Message boards : Number crunching : Microsoft Monthly Rollups (Message 1861906)
Posted 16 Apr 2017 by Profile HAL9000
Post:
You can always manually download updates from http://catalog.update.microsoft.com

In the case of the Kaby Lake and Ryzen CPUs also not, because these files are *.msu files, which are blocked. As I read elsewhere, it may be possible to manually add *.cab files via DISM, but that is very circuitous.

I have only ever downloaded the .exe packages from there.
I guess as long as there are other users that can provide the static path to the updates they could be downloaded by anyone.
28) Message boards : Number crunching : RX 480 OpenCL Question (Message 1861762)
Posted 16 Apr 2017 by Profile HAL9000
Post:
With my 8GB R9 390x I am currently using -sbs 2048 with no issues.
I did go as high as -sbs 3072 without any issues, but there were no apparent gains after 2048.
When I tried -sbs 4096 the app failed to start. Likely because it is only a 32-bit app.
29) Message boards : Number crunching : Linux SETI on a flash drive, which distro? (Message 1861756)
Posted 16 Apr 2017 by Profile HAL9000
Post:
Ok, thanks Brent, I'll give your thread a read thru, and hopefully in the next week or so get it together. I'll post questions if I come into any difficulties. Oh, one question, I really didn't like the Unity interface, and just read on Wiki that last week Canonical said that with release 18.04 they are dumping it, so is one version you mentioned have a less unity looking interface than the other? I know some distros really try to give the Windoze interface experience, Zorin is one that comes to mind if you've possibly heard of it. Well, now to find a little time to put it together and give it a test.

Just use Mint instead of Ubuntu. Mint has the Cinnamon desktop which is more "Windows style".

I am just going to assume that is what what whole "cinnamon challenge" thing is all about. :P

At my last workplace we were using Red Hat and then Fedora as our Linux flavor.
I seem to recall Fedora being very windows like with some kind of updater and driver packages having some kind of GUI interface.
However I believe they were on Release 17 when I last used it.
30) Message boards : Number crunching : Microsoft Monthly Rollups (Message 1861753)
Posted 16 Apr 2017 by Profile HAL9000
Post:
I`m very happy we have Chip.de which provides a package of important updates for win 7 every once in a while.
M$ is on a good way to..................

You can always manually download updates from http://catalog.update.microsoft.com
31) Message boards : Number crunching : Water cooling the Breakthrough Listen CPUs and GPUs (Message 1861751)
Posted 15 Apr 2017 by Profile HAL9000
Post:
This would even make Petri drool :P
Circumsised GTX 1080s Part of an interesting discussion on the limitation of the number of GPUs a system can handle.
Interesting, I have my Dual Xeon system with 7 or 8 GPU's installed in it, running on PCI-E-USB adapters, and couldn't get the system to recognize more than I believe either 5 or 6 video cards. The frustrating thing is, it has 10 8x PCI-E slots, and my original plan was to try and run 10 cards. Something about not enough memory space or something with the motherboard, to which I called BS because it is designed with 10 slots, they should all be able to be filled and work. But, after talking with the support engineer at Supermicro, they came to the conclusion that there was nothing they could to to make it work. Wasn't happy, that was an expensive board/CPU combo, which left a lot of performance on the table unutilized.

If you were to bung in a bunch of NIC, Fibre Channel, or SAS controllers you could use all of the slots no problem. Given they don't typically have several GB of memory that needs to be mapped in the system.
32) Message boards : Number crunching : Microsoft Monthly Rollups (Message 1861535)
Posted 15 Apr 2017 by Profile HAL9000
Post:
If one looks, there are still brand new copies of Win 7 Pro x64 floating around on ebay.

You can still buy a new computer with Windows 7 installed as well.
33) Message boards : Number crunching : ATI Radeon HD 4350 can not get WU (Message 1861533)
Posted 15 Apr 2017 by Profile HAL9000
Post:
Radeon HD 4000 series only had Beta OpenCL support.
Finding a Windows 10 driver with OpenCL support for HD 4000 series may be an only issue.
34) Message boards : Number crunching : Panic Mode On (105) Server Problems? (Message 1861134)
Posted 12 Apr 2017 by Profile HAL9000
Post:
What about
nslookup setiboinc.ssl.berkeley.edu
.. and goggle.com
Resolves to an IP?

Google is fine, but
*** can't find setiboinc.ssl.berkeley.edu: Server failed

Looks like your ISP doesn't have a record for it anymore.
Name: setiboinc.ssl.berkeley.edu
Address: 208.68.240.126

When I looked up 208.68.240.126
synergy.ssl.berkeley.edu was returned

That does look like the host name of the server.
scheduling server	synergy
scheduler process	synergy
feeder			synergy

However since the project doesn't use server host names to communicate with you might want to temporarily add entries to your local host file.
208.68.240.110 setiathome.berkeley.edu
208.68.240.126 setiboinc.ssl.berkeley.edu
208.68.240.118 setiboincdata.ssl.berkeley.edu
208.68.240.119 boinc2.ssl.berkeley.edu
208.68.240.127 boinc2.ssl.berkeley.edu

I use google, 8.8.8.8, for my primary DNS in my router and my ISP DNS as secondary.
35) Message boards : Number crunching : Panic Mode On (105) Server Problems? (Message 1861129)
Posted 12 Apr 2017 by Profile HAL9000
Post:
What about
nslookup setiboinc.ssl.berkeley.edu
.. and goggle.com
Resolves to an IP?

Google is fine, but
*** can't find setiboinc.ssl.berkeley.edu: Server failed

Looks like your ISP doesn't have a record for it anymore.
Name: setiboinc.ssl.berkeley.edu
Address: 208.68.240.126
36) Message boards : Number crunching : master_setiathome.berkeley.edu.xml corrupt? (Message 1860976)
Posted 12 Apr 2017 by Profile HAL9000
Post:
There was some discussion on the BOINC message board about campus network maintenance that is occurring this week as a possible cause for the servers being unreachable.
37) Message boards : Number crunching : Water cooling the Breakthrough Listen CPUs and GPUs (Message 1860871)
Posted 11 Apr 2017 by Profile HAL9000
Post:
This would even make Petri drool :P
Circumsised GTX 1080s Part of an interesting discussion on the limitation of the number of GPUs a system can handle.

It looks like they are stuffing all of that into a Thermaltake Core X9 case.
Which I have one of & when it arrived I thought someone left a fridge on my doorstep.
38) Message boards : Number crunching : Please help me with a new machine build (Message 1860868)
Posted 11 Apr 2017 by Profile HAL9000
Post:
OK, so I did a little research on dual channel RAM and it seems that one way to get a viable 24 GB solution would be:

2 of these: (2 x 8 GB)
https://playit.de/crucial-ballistix-sport-lt-udimm-8gb-ddr4-2400-cl16.html

and this dual channel kit (2 x 4 GB):
https://www.cyberport.at/form/?DEEP=2410-16U&APID=294&STOREID=7

If installed correctly (12 GB in one channel and 12 GB in the other), this should give full speed across all of the 24 GB, right?

The math would work out as 16 Gb in one channel and 8Gb in the other channel. Still it is never a good idea to mix memory capacities. All the same type in either one channel, dual channel or quad channel. Since Kaby Lake is dual channel only, either go with two sticks or 4 sticks of the same memory density. That means 2 X 16 GB sticks or 4 x 8 GB sitcks for 32 GB total. Or just go for a total of 16GB. I have never been able to figure out just why anyone needs 32 GB of memory unless it is a server class machine and that would be on the low end of memory. I have no familiarity with any typical desktop or productivity applications that use that much memory. BOINC normally uses less than 2 GB of memory. I believe the recommended minimum for Windows is 4 GB and at least 8 GB preferred. 16 GB seems to be the common capacity for Windows of any modern flavor.


. . Sorry but that is not the way I understand it (see diagram). Same all round is fine, but his way works AOK. In my Core2 Duo I have 2 x 2Gb and 2 x 1GB and running just fine thank you very much. The most critical consideration is that each bank has totally coherent ram, same size, same speed, same latency, preferably same manufacturer. But the next priority is to have the same speed and latency across all banks.

			Chan 0			Chan 1

	Bank 0		 _________		 _________
			|	  | 	        |         |
               Slot 0   |__8GB____|    Slot 2   |__8 GB___|

	Bank 1           _________               _________
		        |         |             |         |
	       Slot1    |__4GB____|    Slot 3   |__4 GB___|

                           12 GB                   12 GB



I would have modified the diagram slightly with the labels
Bank0 = 16GB
Bank1 = 8GB
Since it is less common to provide a total for each channel.
39) Message boards : Number crunching : Please help me with a new machine build (Message 1860860)
Posted 11 Apr 2017 by Profile HAL9000
Post:
OK, so I did a little research on dual channel RAM and it seems that one way to get a viable 24 GB solution would be:

2 of these: (2 x 8 GB)
https://playit.de/crucial-ballistix-sport-lt-udimm-8gb-ddr4-2400-cl16.html

and this dual channel kit (2 x 4 GB):
https://www.cyberport.at/form/?DEEP=2410-16U&APID=294&STOREID=7

If installed correctly (12 GB in one channel and 12 GB in the other), this should give full speed across all of the 24 GB, right?

The math would work out as 16 Gb in one channel and 8Gb in the other channel. Still it is never a good idea to mix memory capacities. All the same type in either one channel, dual channel or quad channel. Since Kaby Lake is dual channel only, either go with two sticks or 4 sticks of the same memory density. That means 2 X 16 GB sticks or 4 x 8 GB sitcks for 32 GB total. Or just go for a total of 16GB. I have never been able to figure out just why anyone needs 32 GB of memory unless it is a server class machine and that would be on the low end of memory. I have no familiarity with any typical desktop or productivity applications that use that much memory. BOINC normally uses less than 2 GB of memory. I believe the recommended minimum for Windows is 4 GB and at least 8 GB preferred. 16 GB seems to be the common capacity for Windows of any modern flavor.


If he puts a 4Gb and 8GB stick in each channel there's no problem here. 12GB in each channel. I've seen people make the claim that it's not a good idea to mix different sticks in the same channel but I've never seen any evidence that this causes problems. Also even if he did it "wrong" and put the two 8GB sticks in the first channel slots and the two 4GB sticks in the second channel slot it would operate in flex mode and he would get dual channel for the first 8GB in each channel and then single channel speed for the final 8GB in the first channel.

http://www.intel.com/content/www/us/en/support/boards-and-kits/000005657.html#flex

The same article shows configuration for best performance under Dual-channel with four DIMMs.



Where the first group is populated with one size and the second group is populated with another size.
In Intel's example they used a pair of 4GB and 2GB DIMMs for 12GB.

My personal preference would be to go with 32GB (2x16GB DDR4-2400). That leaves the system open to be maxed at 64GB later if need be.
Going with 4x8GB could be more a more cost effective way to run DDR4-2400 over DDR4-2133.


For the CPU cooler the stock Intel ones are not ideal for 24/7 crunching. The environment the machine operates in is really the deciding factor. The cooler can always be upgraded later if required.
40) Message boards : Number crunching : Statistics (Message 1860813)
Posted 10 Apr 2017 by Profile HAL9000
Post:
Could someone point me to a thread that explains how the "statistics" tab of the Bonic relates to the Work Unit put through / day? When it talks about "average units / host" is that per day or per week?

I think the numbers it is posting are the results of my "verified credits" per task? Over how long a period?

I think I understand, but I would like to review the details

Thanks,
Tom Miller

Unless you have modified save_stats_days in a cc_config.xml the default period is 30 days.
The days should be listed along the bottom of the graph.

The graph is generated from each projects statistics_PROJECT.xml file.


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SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.