AMD 14.7 RC3 Driver Performance Loss vs 14.4

Khangollo
Khangollo
Joined: 17 Feb 11
Posts: 42
Credit: 928,047,659
RAC: 0

BOINC (7.2.42) doesn't report

BOINC (7.2.42) doesn't report proper driver version.

Quote:
CAL: ATI GPU 0: AMD Radeon HD 7870/7950/7970/R9 280X series (Tahiti) (CAL version 1.4.1848, 3072MB, 2958MB available, 11264 GFLOPS peak)
OpenCL: AMD/ATI GPU 0: AMD Radeon HD 7870/7950/7970/R9 280X series (Tahiti) (driver version 1526.3 (VM), device version OpenCL 1.2 AMD-APP (1526.3), 3072MB, 2958MB available, 11264 GFLOPS peak)


Apparently it only reports "CAL version" which appears to be the same for all (new?) drivers.

MaU38.gif

Titan
Titan
Joined: 29 Aug 13
Posts: 19
Credit: 25,868,802
RAC: 0

Well that is interesting! I

Well that is interesting! I didn't know that BOINC only displays the aticalcl.dll version number, thanks for the heads up.

Titan
Titan
Joined: 29 Aug 13
Posts: 19
Credit: 25,868,802
RAC: 0

oops double post

oops double post

mikey
mikey
Joined: 22 Jan 05
Posts: 12,066
Credit: 1,834,324,605
RAC: 21,086

RE: RE: Hey Bill592!, It

Quote:
Quote:

Hey Bill592!, It is possible that E@H reports invalid information concerning driver version

Good Mornin Titan

The 'computer' info on Einstein doesn't seem to know Shiʿite about what driver we are using (at least for AMD)
It reads out the same thing 1.4.1848 for all AMD Gpu's (

Take Care,
Bill

If you look on this page you can see that could be some of AMD's fault too:
http://www.hal6000.com/seti/boinc_ati_gpu_cheat_sheet.htm It seems they reused the same CAL/BOINC Version number for the last few.

hannu hautalampi
hannu hautalampi
Joined: 25 Feb 05
Posts: 2
Credit: 177,790,256
RAC: 0

changed from 14.4 whql to

changed from 14.4 whql to 14.8 whql with both of my machines. atleast so far it looks really good. everything after aug 30 is done with 14.8 whql if you want to check times. i have 2 machines running Einstein with gpu only. i7-3930K with 2x7970 and AMD A10-7850K with apu.

Snow Crash
Snow Crash
Joined: 24 Dec 09
Posts: 65
Credit: 100,880,785
RAC: 0

I saw a substantial

I saw a substantial performance decrease when I upgraded from 13.12 to 14.4

tested for 24+ hours: 3x perseus / 7950 / gpu 1125/ mem 1325/ 16x pcie3

13.12 = ~7800 sec
vs.
14.4 = ~8800 sec

I don't have the details at hand but I also saw similar decrease on my 7850.

I reversed the "upgrade" and will stay on 13.12 until the next whql release - unless I see posts claiming a new beta increases performance.

--------------------------
- Crunch, Crunch, Crunch -
--------------------------

Titan
Titan
Joined: 29 Aug 13
Posts: 19
Credit: 25,868,802
RAC: 0

Hannu I checked out your

Hannu I checked out your machines tasks looks like you are also experiencing a doubling in reported CPU time on the Perseus Tasks after the 30th or with the new 14.8 drivers. Has your RAC on that host improved?

hannu hautalampi
hannu hautalampi
Joined: 25 Feb 05
Posts: 2
Credit: 177,790,256
RAC: 0

my rac is down because i did

my rac is down because i did run 2 weeks seti@home just for test it again. it looks like cpu times are doubled but possibly gpu time are litle bit lower. i can't say for sure because atleast for me most of my old tasks are dropped from list. 14.4 i had few tasks over 10000s but with 14.8 highest is little bit over 9000s.

Titan
Titan
Joined: 29 Aug 13
Posts: 19
Credit: 25,868,802
RAC: 0

Snow Crash thanks for the

Snow Crash thanks for the input, I am investigating the 13.12 driver per your post and found that while running two Perseus tasks a piece on both of my R9 280X's (1150 mhz Core 1600 memory) I experienced an minor increase in task completion times of about 200-300 seconds vs the 14.4. Also these drivers did report lower CPU times per task and about a 1% drop in GPU utilization as report by GPU Z. I am currently trying a 3 tasks per card to see if there is any gains over 14.4.

Titan
Titan
Joined: 29 Aug 13
Posts: 19
Credit: 25,868,802
RAC: 0

3 task per cards looks to be

3 task per cards looks to be ideal on the 13.12 drivers the few tasks completed so far I have observed a 10% shorter task completion time! On the 14.4 drivers 3 tasks of the Perseus Survey per card resulted in run times of 8400 secs vs the 7500-7600 on the 13.12. Snow Crash thanks for the tip looks like it could boost my daily output significantly!

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.