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MB/AP Bench Test Instruction by William
17 Jun 2016, 04:13:45 am

Author Topic: Intel HD GPU crunching  (Read 8347 times)

Offline corsair

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Intel HD GPU crunching
« on: 07 Jun 2014, 10:15:17 am »
is there any app valid now for crunching Seti@home for Intel GPU??

I ask it because the last installer if I remember does not include such feature but in case could be used the stock one?? as I saw that in S@H site says that the Intel GPU app has been done with the collaboration of this site.
Over the sailors' graves never groves grass.

Cheers all / Corsair.

Offline Raistmer

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Re: Intel HD GPU crunching
« Reply #1 on: 07 Jun 2014, 11:41:21 am »
« Last Edit: 07 Jun 2014, 01:37:15 pm by Raistmer »

Offline corsair

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Re: Intel HD GPU crunching
« Reply #2 on: 07 Jun 2014, 01:44:35 pm »
I guess should be ask too much any native x64 (for Intel GPU) application??  :'(

in the SETI MB what kind of app.xml file has to be write??  ::) ::)
« Last Edit: 07 Jun 2014, 01:47:55 pm by corsair »
Over the sailors' graves never groves grass.

Cheers all / Corsair.

Offline Raistmer

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Re: Intel HD GPU crunching
« Reply #3 on: 07 Jun 2014, 02:12:21 pm »
x64 gives not too much for GPU app.
app_info example included into distribution archive.

Offline corsair

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Re: Intel HD GPU crunching
« Reply #4 on: 07 Jun 2014, 02:18:41 pm »
app_info example included into distribution archive.


thanks a lot.

this happens when not checked and read all files in rar file ;D ;D , receives renamed .aistub as app_info.xml and crunching in Intel HD  ;)
Over the sailors' graves never groves grass.

Cheers all / Corsair.

Offline benool

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Re: Intel HD GPU crunching
« Reply #5 on: 06 Nov 2014, 11:06:21 am »
Speaking of which, anyone has a Pentium G3258 ?

I'm running Intel GPU apps on one and while working fine I get some strange entries in the logs namely regarding frequencies and raw performance.
I should add that the G3258 is overclocked at 4.2GHz.

Example of a recent task: http://setiathome.berkeley.edu/result.php?resultid=3815477962

Already the reported "Device peak FLOPS   16.00 GFLOPS" seems quite low.

Code: [Select]
OpenCL Platform Name: Intel(R) OpenCL
Number of devices: 1
Max compute units: 10
Max work group size: 256
Max clock frequency: 200Mhz
Max memory allocation: 353579827
Cache type: Read/Write
Cache line size: 64
Cache size: 2097152
Global memory size: 1414319309
Constant buffer size: 65536
Max number of constant args: 8
Local memory type: Scratchpad
Local memory size: 65536
Queue properties:
Out-of-Order: No
Name: Intel(R) HD Graphics
Vendor: Intel(R) Corporation
Driver version: 10.18.10.3960
Version: OpenCL 1.2
Extensions: cl_intel_accelerator cl_intel_ctz cl_intel_d3d11_nv12_media_sharing cl_intel_dx9_media_sharing cl_intel_motion_estimation cl_intel_simultaneous_sharing cl_khr_3d_image_writes cl_khr_byte_addressable_store cl_khr_d3d10_sharing cl_khr_d3d11_sharing cl_khr_depth_images cl_khr_dx9_media_sharing cl_khr_gl_depth_images cl_khr_gl_event cl_khr_gl_msaa_sharing cl_khr_gl_sharing cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_icd cl_khr_image2d_from_buffer cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_spir

The funny bit is:  Max clock frequency: 200Mhz
while in GPU-z it shows frequency up to 1150MHz.


On another host using an i7 3770, we can compareto say with this task http://setiathome.berkeley.edu/result.php?resultid=3818166251 :
The i7 entry is also showing: Device peak FLOPS   147.20 GFLOPS

G3258 - Run time   1 hours 23 min 2 sec
i7 3770 - Run time   1 hours 4 min 30 sec


Not so bad given a 16 vs 147 GFLOPS performance!

So just wondering what's happening here.

Offline Richard Haselgrove

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Re: Intel HD GPU crunching
« Reply #6 on: 06 Nov 2014, 11:41:45 am »
You're using the 10.18.10.3960 driver. There have been reports at both Einstein (http://einstein.phys.uwm.edu/forum_thread.php?id=10955) and SETI (http://setiathome.berkeley.edu/forum_thread.php?id=76036) of problems with that driver - it may explain some of the odd readings too. Have your tasks been validating reliably?

Offline benool

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Re: Intel HD GPU crunching
« Reply #7 on: 06 Nov 2014, 12:28:21 pm »
Have your tasks been validating reliably?
Yes, I don't have tasks failing or not validating.

Offline benool

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Re: Intel HD GPU crunching
« Reply #8 on: 17 Nov 2014, 04:53:46 pm »
By the way are there any guidelines regarding the amount of memory to allocate for iGPU?

I'm talking about options in the BIOS letting one choose among values like 128, 224, 256 MB to reserve for integrated GPU.
Is there any actual influence in terms of crunching speed ?

Offline Raistmer

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Re: Intel HD GPU crunching
« Reply #9 on: 18 Nov 2014, 02:47:23 am »
By the way are there any guidelines regarding the amount of memory to allocate for iGPU?

I'm talking about options in the BIOS letting one choose among values like 128, 224, 256 MB to reserve for integrated GPU.
Is there any actual influence in terms of crunching speed ?

If memory amount not enough modern WDM driver allocates additional memory from system memory. Perhaps that additional memory should somehow be of less performance (possibility of different caching scheme), but AFAIK no-one did robust testing in this area.
Would be interesting to consider 2 extreme cases (64 and 256 M ) with 2 or more tasks in play. with total amout of memory reported by app (-v 8 switch for OpenCL)  exceeded amount of dedicated memory set in BIOS.

Offline cristipurdel

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Re: Intel HD GPU crunching
« Reply #10 on: 25 Jan 2015, 04:36:58 am »
Is there an app to run on Android based on x86 architecture?

Offline Raistmer

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Re: Intel HD GPU crunching
« Reply #11 on: 25 Jan 2015, 07:55:31 am »
Only that on SETI beta site.
Or Meteusz' one via emulation.

Offline cristipurdel

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Re: Intel HD GPU crunching
« Reply #12 on: 04 Feb 2015, 03:18:30 pm »
I was more asking for Android Intel GPU app :)

Offline Claggy

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Re: Intel HD GPU crunching
« Reply #13 on: 04 Feb 2015, 03:40:47 pm »
I was more asking for Android Intel GPU app :)
Android Boinc doesn't have GPU support yet, for any vendor.

Even Linux doesn't have Official Intel GPU support yet.

Claggy

 

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