GPU not used
4 Sep 2020 13:09:46 UTC
Topic 223414
(moderation:
Hi,
I just recently restarted with BOINC and got everything set up, updated and found a problem with GPU usage. First I thought I would get it fixed by setting the BRP, FGRP and GW app load to 0.2. It seemed good because tasks in the BOINC manager were showing 0.9CPUs + 0.2 AMD/ATI GPUs.
Back when I used BOINC the last time this would mean it would run 5 GPU tasks. But now it doesn't start 5 at once, maximum is 4, sometimes going down to 2.
Afterburner and Task Manager showing a low GPU load.
System:
Mainboard Maximus Hero VII
Intel 6700k @4.6 GHz/1.34V
MSI AMD 5700XT
DDR3 2133 RAM, with XMP to 3200
I recently started to overclock a little bit, but System ist stable.
Looking forward to your suggestions,
T
I've encountered in the past
)
I've encountered in the past that 0.2 for GPU usage didn't give 5 concurrent tasks, but 0.19 gave.
Is it normal tho that
)
Is it normal tho that Taskmanager shows nearly 0% usage on GPU while Boinc/Einstein is running GPU tasks? One Gravitational Wave search 02 is taking about 20 mins
Timo wrote: Is it normal tho
)
Maybe because your gpu is sooo fast: here's one pc
ApplicationAll applications (1)Gamma-ray pulsar search #5 (0)Gravitational Wave search O2 Multi-Directional (0)Gravitational Wave search O2 Multi-Directional GPU (1)
And here's the other pc:
Timo wrote:Is it normal
)
Probably, although it's not usual to try to jump right into a 5x multiplier right from the outset :-).
Please realise that the current GPU searches are quite different from what you might have previously experienced. It's a whole new ball game that you need to properly work out for yourself.
The GW GPU app still uses the CPU for a lot of the time. Timely CPU support is critical. Low GPU utilization is probably a sign that the CPU support isn't timely enough. You really need to experiment in the range from 3x to 5x to see where your best performance lies. Your 5700XT gives you an advantage there compared to nvidia where you really need more than a full core per GPU task instance in order to support the running tasks.
The FGRPB1G app is more mature and uses the GPU much more efficiently. The biggest gain in output will be from going to 2x. Above that the returns will be quite modest to just about non-existent - or even negative at the levels you're talking about.
Cheers,
Gary.
Timo wrote: Is it normal tho
)
It is normal unless you change the Task Manager to display Compute usage instead of Graphics.
Use the pull down menu to change the display to Compute_0
Then it will display the actual gpu usage while crunching.
Hi! I am trying to get
)
Hi!
I am trying to get Einstein run on my Intel i7-3770k with HD 4000. Also I have a GTX 1060 graphcs card installed which I use for GPUGrid. The system doesn't recognize the integrated Intel graphics. When I look at my computer's specs through the BOINC manager it doesn't list it, Only the GTX. In the BIOS the Intel graphics is set to enabled. Anyone any idea?
Drago75 wrote: Hi! I am
)
You need to load the Intel drivers that enable crunching too and then figure out if they have any Intel tasks here, some of the threads have indicated they do not right now.
Drago75 wrote:... When I look
)
Unless you tell the BOINC client to "use all gpus", BOINC has a habit of using only what it considers to be the "best" GPU. You change that behaviour by making sure that there is the appropriate option specified in the core client configuration file, cc_config.xml.
All options have default values so that file doesn't need to exist if you choose to go with default values. If the file does exist already, you can check for that option and add it if necessary. If the file doesn't exist you will need to create one. You should read the documentation for setting up a configuration file. A config file may contain both options and log_flags which need to reside in different sections as explained in the docs. You only need to specify something if you wish to change it from the default. The syntax is important so you need to read everything carefully. Note that <use_all_gpus> needs to be in an <options> ... </options> section as shown in the examples.
Please be aware that the gravity wave GPU tasks will likely not run at all on an Intel GPU. You may be able to run gamma-ray pulsar tasks (I don't really know) but I'd be surprised if they ran efficiently. In any case, if you do find something that will run without error, it's likely to adversely impact on the performance of any CPU tasks trying to run on the CPU cores. You haven't mentioned what sort of use you make of CPU threads.
I have no personal experience of trying to run Einstein GPU tasks on Intel GPUs but, over the years, I seen quite a few comments of adverse effects on CPU task performance made by those who have. Many have had difficulty and have said it's not worth it.
Cheers,
Gary.