Posts by Bill F

1) Message boards : Number crunching : New BOINC Version for Mac (Message 3655)
Posted 14 days ago by Profile Bill F
Post:
OBTW Mac Users....

BOINC Version 7.24.3 Recommended version (MacOS 10.13+)

Was released on 30 Jan 2024

This version fixes a problem that causes GPU apps to fail after a Mac OS upgrade to Sonoma

Bill F
2) Message boards : News : Support for Intel GPUs (Message 3596)
Posted 24 Oct 2023 by Profile Bill F
Post:
I have had 3 tasks fail after between 12 and 14 hours with the following error:
Exit status 198 (0x000000C6) EXIT_MEM_LIMIT_EXCEEDED

The tasks are https://numberfields.asu.edu/NumberFields/result.php?resultid=204294692, https://numberfields.asu.edu/NumberFields/result.php?resultid=204294798 and https://numberfields.asu.edu/NumberFields/result.php?resultid=204294071

Part of Stderr Output gives:

<core_client_version>7.24.1</core_client_version>
<![CDATA[
<message>
working set size > client RAM limit: 16385.39MB > 16309.76MB</message>
<stderr_txt>
GPU Summary String = [INTEL|Intel(R)HDGraphics4600|1|1629MB||102].
Loading GPU lookup table from file.
GPU was not found in the lookup table. Using default values:
numBlocks = 1024.
threadsPerBlock = 32.
polyBufferSize = 32768.


Unhandled Exception Detected...

- Unhandled Exception Record -
Reason: Breakpoint Encountered (0x80000003) at address 0x00007ffe3287b892

Engaging BOINC Windows Runtime Debugger...

From these messages I understand that the tasks are running out of GPU memory.
Is there any way to reduce the amount of memory being used?

Thanks, Ruud


Sorry for your troubles. The application doesn't use near that much memory and I think that error code is referring to CPU memory not GPU (but I could be wrong). Also, the memory is allocated up front, so it shouldn't take 14 hours before it errors out.

Looking at the stderr, it doesn't even get to the openCL messages. My best guess for what is happening- the openCL driver is hanging during the build phase. More specifically, the openCL compiler gets stuck and is slowly chewing up system memory until it runs out (do you have 16GB of system memory?). Since the openCL compiler is part of the graphics driver, the only solution I see is to upgrade the driver, if that's even possible.


Intel does have some Driver Utilities that are easy to use for Driver updates outside of the OEM Windows or Manufactures standard loads.
3) Message boards : News : Support for Intel GPUs (Message 3554)
Posted 5 Aug 2023 by Profile Bill F
Post:
Eric

I am experimenting with an Intel GPU on Computer 2807553. It is a INTEL Intel(R) HD Graphics 4600 (1629MB) OpenCL: 1.2

Running on Operating System Microsoft Windows 10 Professional x64 Edition, (10.00.19045.00)
BOINC version 7.22.2

It is running a whole lot slower than a non-GPU task Get Decic Fields v4.00 (default) windows_x86_64

Is the GPU application processing a bigger chunk of data or is the GPU not efficient enough to run the GPU task types ?

Thanks
Bill F
4) Message boards : Number crunching : New BOINC versions 22 May 2023 (Message 3515)
Posted 29 Jun 2023 by Profile Bill F
Post:
A new version of the BOINC client is available for Windows, Mac, and Android

Available at https://boinc.berkeley.edu/download_all.php
5) Message boards : News : Support for Intel GPUs (Message 3419)
Posted 14 Nov 2022 by Profile Bill F
Post:
bunch of WU processed :)

https://numberfields.asu.edu/NumberFields/result.php?resultid=161210884
https://numberfields.asu.edu/NumberFields/result.php?resultid=161211661

and plenty others


Thx! Good to see it's working, and that run times are reasonable on Intel's newest GPUs.


Run times are longer for the Intel GPU tasks. Are they doing larger amounts of science and should the credit amount be higher ?

Bill F


Run times are longer compared to what? Compared to the previous dataset, run times are longer and credits have gone up accordingly.

If comparing to a different gpu then average times will probably be different. Each WU is a fixed amount of work and therefore has a fixed credit. Just because they run longer doesn't mean they deserve more credit. If it's running longer than expected then it could be an inefficient driver or bad OpenCL implementation.


I was comparing to a default Windows Get Decic Fields v4.00 (default)windows_x86_64

You may have a point about Driver or implementation

Bill F
6) Message boards : News : Support for Intel GPUs (Message 3417)
Posted 12 Nov 2022 by Profile Bill F
Post:
bunch of WU processed :)

https://numberfields.asu.edu/NumberFields/result.php?resultid=161210884
https://numberfields.asu.edu/NumberFields/result.php?resultid=161211661

and plenty others


Thx! Good to see it's working, and that run times are reasonable on Intel's newest GPUs.


Run times are longer for the Intel GPU tasks. Are they doing larger amounts of science and should the credit amount be higher ?

Bill F
7) Message boards : News : Support for Intel GPUs (Message 3261)
Posted 10 Jun 2022 by Profile Bill F
Post:
I have added two systems to the project in the last 24 hours that have Intel GPU's. After reviewing this tread and seeing that some Intel GPU's have been identified as successful and some not. Can the successful models be added one or more at a time, to the look up table, for optimization ?

From my first successful task

GPU Summary String = [INTEL|Intel(R)UHDGraphics620|1|3227MB||300].
Loading GPU lookup table from file.
GPU was not found in the lookup table. Using default values:
numBlocks = 1024.
threadsPerBlock = 32.
polyBufferSize = 32768.


System information
GenuineIntel
Intel(R) Core(TM) i5-8265U CPU @ 1.60GHz [Family 6 Model 142 Stepping 11]
(8 processors) INTEL Intel(R) UHD Graphics 620 (3227MB) OpenCL: 3.0

Thank you
Bill F
8) Message boards : News : Support for Intel GPUs (Message 3259)
Posted 9 Jun 2022 by Profile Bill F
Post:
You have more months of experience to consider now. Are you leaving the App as BETA because of the issues that the weaker IGPU systems may have with inexperienced users or other reason's ?

Thanks
Bill F
9) Message boards : News : 2021 Year in Review (Message 3202)
Posted 3 Jan 2022 by Profile Bill F
Post:
So another year has come and gone.

This was not the best year. We started the year with a severe hard drive crash that took weeks to recover from. After that, the year was spent on the search over ℚ(√2) (subfield 3). This search should be complete within several months. A single search seems like a small accomplishment, but I should point out that this is a gigantic search that just several years ago seemed out of reach.

Other than that, in November support was added for Intel GPUs. The app worked for the most part but performance was disappointing. We look forward to the new Intel Arc GPUs coming out this year which should perform much better.

Thanks everyone for your contributions and have a wonderful New Year!



If the Intel GPU application is stable you may get more usage if you take it out of BETA status. Some people do not want to run Test applications and do not have that option checked in their Project preferences.

Thanks
Bill F
10) Message boards : News : Support for Intel GPUs (Message 3172)
Posted 22 Nov 2021 by Profile Bill F
Post:
It didn't find my nvidia gpu
GPU Summary String = [CUDA|NVIDIAGeForceGTX1650|1|4095MB|49676|300].
Loading GPU lookup table from file.
GPU was not found in the lookup table. Using default values:
numBlocks = 1024.
threadsPerBlock = 32.
polyBufferSize = 32768.


That's because it's not in the lookup table. But no worries, performance should still be relatively good with the default values.



A NVIDIAGeForceGTX1650|1|4095MB|49676|300] is a pretty mid range GPU that I believe has been around for a while. Are the project developers having to build an entire look up table or are there common industry tables available ?
11) Message boards : Number crunching : Updated BOINC Clients 7.16.11 - Windows 64-bit and Mac OS X (64-bit Intel) (Message 3120)
Posted 29 Sep 2021 by Profile Bill F
Post:
I did not see that anyone advertised the updated BOINC Clients on this projects Forum Boards.... back in Sept of 2020.

Version 7.16.11 of the BOINC client software has been released for Mac OS and Windows.

Download at https://boinc.berkeley.edu/download_all.php

Release notes at https://boinc.berkeley.edu/wiki/Release_Notes

Bill F





Main page · Your account · Message boards


Copyright © 2024 Arizona State University