Posts by Raistmer


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1) Message boards : Number crunching : Lunatics Windows Installer v0.43 Release Notes (Message 1590333)
Posted 14 hours ago by Profile Raistmer
@ Raistmer

I made some more tests and the problem is aparently related to the -oclfft_plan switch, when you run without the switch the problem dissapears.

The same problem apears on others hosts with the same GPU (780FTW) all running Win7 and i see at least one example on a 2x690 host who runs Win Server and on a 670 hosts with win 7.


No signs that that option was acknowledged by app...

Running on device number: 1
Sleep() & wait for event loops will be used in some places
DATA_CHUNK_UNROLL set to:12
FFA thread block override value:16384
FFA thread fetchblock override value:8192
TUNE: kernel 1 now has workgroup size of (64,4,1)
TUNE: kernel 2 now has workgroup size of (64,4,1)
Priority of worker thread raised successfully
Priority of process adjusted successfully, below normal priority class used
OpenCL platform detected: NVIDIA Corporation
BOINC assigns device 1
Info: BOINC provided OpenCL device ID used
Used GPU device parameters are:
Number of compute units: 8
Single buffer allocation size: 256MB
Total device global memory: 2048MB
max WG size: 1024
local mem type: Real
FERMI path used: yes
2) Message boards : Number crunching : Lunatics Windows Installer v0.43 Release Notes (Message 1590162)
Posted 21 hours ago by Profile Raistmer
thanks, got them.

@juan BFB - Thanks, no need. I got them from Richard's link already.
3) Message boards : Number crunching : Oddly long AP7 wu's? (Message 1590159)
Posted 21 hours ago by Profile Raistmer
either free CPU core or use -cpu_lock in command line.
4) Message boards : Number crunching : Lunatics Windows Installer v0.43 Release Notes (Message 1590154)
Posted 21 hours ago by Profile Raistmer
I have one who uses more than 1 GB.

SETI@home 7.05 astropulse_v7 (opencl_nvidia_100) ap_26jn14aa_B6_P0_00184_20141017_17161.wu_0 00:21:28 (00:00:10) 0,83 61,261 00:43:27 12/11/2014 07:01:51 0,1C + 1NV Suspended by user Juan 2

Command Line:

-use_sleep -unroll 16 -oclfft_plan 256 16 256 -ffa_block 16384 -ffa_block_fetch 8192 -tune 1 64 4 1 -tune 2 64 4 1

it´s a 2x780FTW host

What else you need?

One observation, the core usage rises to allmost 100% when normaly is very low.

<edit> another one from the same host, suspended it for now (this one uexes 1. GB)

SETI@home 7.05 astropulse_v7 (opencl_nvidia_100) ap_28jn14aa_B1_P1_00131_20141017_13023.wu_1 00:00:02 (-) 24,00 0,044 01:22:51 12/11/2014 06:46:22 0,1C + 1NV Suspended by user Juan 2


I need task itself (binary or link to download binary).


One observation, the core usage rises to allmost 100% when normaly is very low.

yep, it correlates with my current suspiction where it could be. I expected this issue diminished in APv7 though so need test case to explore.
5) Message boards : Number crunching : Lunatics Windows Installer v0.43 Release Notes (Message 1590146)
Posted 21 hours ago by Profile Raistmer

This is a capture I did yesterday on the PC with only 4GB, normally there's no problem, but with the app taking 1.4GB I have a problem ;)




Thinks t might have something to do with the command line.

On the 4GB PC http://setiathome.berkeley.edu/show_host_detail.php?hostid=7283519 I had the problem with this command line

-use_sleep -unroll 16 -oclFFT_plan 256 16 256 -ffa_block 16384 -ffa_block_fetch 8192 -tune 1 64 8 1 -tune 2 64 8 1

After changing it to

-unroll 16 -ffa_block 10240 -ffa_block_fetch 5120 -use_sleep -tune 1 64 8 1 -tune 2 64 8 1

The problem seems to have gone away.


Next time one will see such excessive system memory consumption please catch that particular task and send it to me along with command line options used in task processing.
6) Message boards : Number crunching : Android errors (Message 1587797)
Posted 6 days ago by Profile Raistmer
1) What Android version do you use?
2) Try these optimized apps instead:
http://nativeboinc.org/site/uncat/downloads
http://files.nativeboinc.org/boinc_apps/setiathome-distrib-0.2.zip

Also, I would recomment to try NativeBOINC from that site. Maybe you could find it more convenient to use than stock one.
7) Message boards : Number crunching : AP V7 (Message 1587784)
Posted 6 days ago by Profile Raistmer
I can confirm this behaviour on both AMD and NV GPUs - when running a mix of AP and MB on the same GPU, the AP task will run faster than when running AP tasks only, and the MB task will run more slowly than when running MB tasks only.


Oh, I wasn't complaining, just making a statement.



And the WU running with it did NOT take much longer than normal, probably due to the short run time of the AP


Thanks for observations. So far I collect info mostly for AP+AP configs.
Info for for APv7 tasks collected up to now is available here:

http://lunatics.kwsn.net/1-discussion-forum/astropulse-v7-performance-illustration.0.html

AP+MB or interactions with other GPU apps from another projects were out of scope so far. Maybe more info will be collected in time.
8) Message boards : Number crunching : AP V7 (Message 1587733)
Posted 7 days ago by Profile Raistmer
AP was quite heavely optimized for ATi platform from the early days of Brook+.
I think it's safe enough to say it more suits ATi GPUs (in terms of maximum usage of available computation resources) than ATi MB.
Up to the moment of GUI lags and too big wasted computations if any, the bigger kernel is the more efficiently it uses GPU resources (at other equal params of course) and the less CPU overhead it have.
Hence here is nothing to fix.
The only thing one could check is to ensure if AP.MB mix still gives better performance than serial AP then MB execution. Separate testing required for that (for one who wants absolute performance peak from his GPU).
As estimate it can be supposed as "yes". Even slower MB running along with AP will result in better total times than AP and MB running serially.
9) Message boards : Number crunching : AP V7 (Message 1587613)
Posted 7 days ago by Profile Raistmer
Hi Folks,
Anyone have any idea why when running an AP GPU task with a Cuda50 WU on the same GPU the CUDA50 WU would take 3 times its normal running time to complete?

I've had this occur 3 times so far and a 4th instance is currently running the same way.

Regards,


One possibility is the nature of GPU. GPU is not preemptive system. kernel will run to completion. If one app (AP in this case) has bigger kernels and less gaps between kernel launches it will occupy more GPU and often. And GPU capabilities are limited hence to give more to one is to give less to other.
10) Message boards : Number crunching : AP V7 (Message 1587251)
Posted 7 days ago by Profile Raistmer
And taking into account that OpenCL AP7 apps are the same for "Lunatics" and "stock" (cause GPU stock are Lunatics) that comparison compares something another instead of application speed (maybe, selection of tuning options chosen?)
11) Message boards : Number crunching : A Short Question About AP v7 for Nvidia GPU (Message 1587156)
Posted 7 days ago by Profile Raistmer
Or as I constantly say just add -cpu_lock option (with another one if you run many tasks per device) and see where it will bring you. No cores reservation required in this case.
12) Message boards : Number crunching : AP V7 - in simple terms (Message 1587154)
Posted 7 days ago by Profile Raistmer

In short...it's great.

you beat me, even less word count :D
13) Message boards : Number crunching : AP V7 - in simple terms (Message 1587133)
Posted 7 days ago by Profile Raistmer
better PC resources usage and better science (only in 7 words, easy enough I suppose ;) )
14) Message boards : SETI@home Science : Detecting Alien Radar Signals? (Message 1587132)
Posted 7 days ago by Profile Raistmer
1) Freq should lie in "transparent" area for inter-stellar matter. Or signal will extinct too fast.
2) if we bound to some random freq the number of possibilities where that random freq lies rises enormously even for our current processing power.

All these give constrains on freq we could search.
15) Message boards : Number crunching : Lunatics Windows Installer v0.43 Release Notes (Message 1587116)
Posted 7 days ago by Profile Raistmer
I think we need a plan B...

Plan B is simple. Just start to crunch ;D

Yes, the stock applications are digitally signed already.

And BOINC installer itself?
BTW, in testing I did replacement of stock (digitally signed) apps with own binaries. And they were at least launched by BOINC (and even completed some tasks before any BOINC complains) So, all those illusions of security need to be perceived ironically enough. That's what I wanted to say - no waste your time on this pseudo-issue. There are big enough holes in BOINC security to make all this unneeded.
16) Message boards : Number crunching : Lunatics Windows Installer v0.43 Release Notes (Message 1587105)
Posted 7 days ago by Profile Raistmer
I think we need a plan B...

Plan B is simple. Just start to crunch ;D
17) Message boards : Number crunching : Problem with AstroPulse v7 (Message 1586715)
Posted 9 days ago by Profile Raistmer
Version: OpenCL 1.1 AMD-APP-SDK-v2.5 (732.1)


Upgrade your ATi drivers. Preferably with clean install. Cause you could have mixture of components from different Catalyst packs currently.
18) Message boards : Number crunching : APv7-related issues and errors (Message 1586703)
Posted 9 days ago by Profile Raistmer
It's the single case so far for that host: http://setiathome.berkeley.edu/results.php?hostid=7407068 so hardly config error if config was stable between runs... For now just monitor result further and try to catch what condition could be assotiated with error. Not apparent from log.
Could it be out of memory state for that host?
19) Message boards : Politics : Chimps... Are they people too? (Message 1586691)
Posted 9 days ago by Profile Raistmer

If such proteins become to similar with our body's own proteins, there may possibly become a misunderstanding between the food you are eating and the elements of your body and you may risk ending up with the possibilty of unwanted mutations and other similar things.

OMG, just go to library and read what % of proteins are different between you and the frog for example (or whale or monkey, or dog...) You will be really surprized :)
20) Message boards : Politics : Chimps... Are they people too? (Message 1586686)
Posted 9 days ago by Profile Raistmer
The question wasn't about making a chimp subject to human law. It was about giving it human rights.

yep, "rights". Vote right, to marry on people right, what else human right they need? Just as I said, to give non-human human rights is ridiculous. Non-human needs are different. There is no objects they should have some own rights, but definitely not a human ones.

EDIT: and what is "to give some right"? How we define that right was given? Perhaps, if it fixed in law, not? Hence, to give right and to make subject to law not SO different things. Just formulate what is "to give right" is ?

EDIT2: from starting post:
lawsuit over legal
. To me these words assotiated with law, not right...


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