-
Notifications
You must be signed in to change notification settings - Fork 446
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
Incorrect peak FLOPS for AMD GPU #2988
Comments
Maybe driver issue? The Intel OpenCL driver shows me different result too, then the Beignet driver, |
Whatever the cause, we probably need to update lib/coproc.cpp for AMD/ATI, as we did last year for NVidia in #2707 |
Addendum from user: Update: On a hunch, I set the underclocked GPU back to auto (400-1100MHz). The spurious peak GFLOPS issue went away. 02/02/2019 15:28:02 | | OpenCL: AMD/ATI GPU 0: AMD Radeon(TM) Vega 8 Graphics (driver version 2766.5 (PAL,HSAIL), device version OpenCL 2.0 AMD-APP (2766.5), 6567MB, 6567MB available, 1127 GFLOPS peak)On underclocking it again, this time to a slightly different nominal speed, we get the old issue back:02/02/2019 15:57:59 | | OpenCL: AMD/ATI GPU 0: AMD Radeon(TM) Vega 8 Graphics (driver version 2766.5 (PAL,HSAIL), device version OpenCL 2.0 AMD-APP (2766.5), 6567MB, 6567MB available, 43980464 GFLOPS peak)CPUZ seems to report the correct GPU speed in each case. |
User Rob Smith reports: AMD have a tool set that includes something that looks as if it could be of use (or at least a starter for ten) - AMD GPU Services (AGS)
|
Workarounded in #3001. |
Eeh, worked around... |
The OpenCL GPU detection for a particular AMD GPU reports 43 ExaFLOPS - about 10,000X too big.
(this is 7.10.2, but same in 7.14.2)
22-Dec-2018 12:28:23 [---] cc_config.xml not found - using defaults
22-Dec-2018 12:28:23 [---] Starting BOINC client version 7.10.2 for windows_x86_64
22-Dec-2018 12:28:24 [---] OpenCL: AMD/ATI GPU 0: AMD Radeon(TM) Vega 8 Graphics (driver version 2580.6 (PAL,HSAIL), device version OpenCL 2.0 AMD-APP (2580.6), 6567MB, 6567MB available, 43980464 GFLOPS peak)
The text was updated successfully, but these errors were encountered: