Good day,
I am trying to understand why my 780s are don g so bad?
Any advice would be appropriated.
Thank you

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Now that's very strange as it can't even keep up with my 3570K with dual 660's running only 1 task per GPU. :-O

How many tasks per GPU are you running?

Also some of those GPU times are very well blown out. Have you constantly monitored the GPU speeds to see if you're getting any down clocking happening during processing? Starting clocks look fine.

Cheers.

Good day,
I am trying to understand why my 780s are don g so bad?
Any advice would be appropriated.
Thank you

Looking at the GPU listing you see it is Missing OpenCL;
[2] NVIDIA GeForce GTX 780 Ti (3072MB) driver: 368.81
That probably means you are using the M$ Driver instead of the nVidia driver.
Since you don't have OpenCL, you can't use the OpenCL App which is much faster on the GUPPIs than the current Stock CUDA Apps. You might try installing the driver and using the OpenCL App.

Good day,
I am trying to understand why my 780s are don g so bad?
Any advice would be appropriated.
Thank you

Looking at the GPU listing you see it is Missing OpenCL;
[2] NVIDIA GeForce GTX 780 Ti (3072MB) driver: 368.81
That probably means you are using the M$ Driver instead of the nVidia driver.
Since you don't have OpenCL, you can't use the OpenCL App which is much faster on the GUPPIs than the current Stock CUDA Apps. You might try installing the driver and using the OpenCL App.

There's more to it than just that TBar as I'm just using the same stock CUDA app myself on lesser hardware and most of those GPU tasks that I checked were Arecibo w/u's that are blown out and not Guppi w/u's. ;-)

Cheers.

[2] NVIDIA GeForce GTX 780 Ti (3072MB) driver: 372.70 OpenCL: 1.2

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It's now showing the OpenCL component to the driver, but your extra long GPU running times still remain, your Arecibo times are up to 3.5 times longer than mine.

So I'll ask again, how many tasks are you doing per GPU?

Are you constantly monitored the GPU speeds to see if you're getting any down clocking while processing and also the temps they are running at?

Also, how many CPU cores are you using? And what else is the PC used for?

Cheers.

Hy, there is an easy configuration of the configuration file in the README.doc

mb_cmdline_win_x86_SSE3_OpenCL_NV_SoG.txt

Here are the standard config flags:

-sbs 384 -spike_fft_thresh 4096 -tune 1 64 1 4 -oclfft_tune_gr 256 -oclfft_tune_lr 16 -oclfft_tune_wg 256 -oclfft_tune_ls 512 -oclfft_tune_bn 64 -oclfft_tune_cw 64

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It's now showing the OpenCL component to the driver, but your extra long GPU running times still remain, your Arecibo times are up to 3.5 times longer than mine.

So I'll ask again, how many tasks are you doing per GPU?

Are you constantly monitored the GPU speeds to see if you're getting any down clocking while processing and also the temps they are running at?

Also, how many CPU cores are you using? And what else is the PC used for?

Cheers.

The temps sit around 74c/77c. Running two tasks per GPU. One CPU core per task.

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