Folding Forum

mrk wrote:I'm talking about my onboard graphics HD4000. You don't need a graphics driver for your CPU.

Of course you need drivers for your onboard Intel HD4000 needs graphics drivers and drivers which support OpenCL version 1.x. Just because Intel and Windows tries to make updating them unobtrusive doesn't mean they're not there. In fact, since the're rarely updated means either they're particularly mature (e.g.-for CPUs) or not being actively developed (e.g.-for the Display adapter).

If you're in Windows, go to Device Manager and right-click on one of your Processors. Note that you can update the Driver Software. Do the same with one of your Display Adapters.

The question about what version you're running is a valid question, especially when we're talking about OpenCL support. The Intel OpenCP package does still have some shortcomings that I expect to be fixed in future versions -- though it depends on which features are used in the software. I have no doubt that the upcoming FahCores use all of the features used by FAHBench, and possibly some others that still need work.

Quisarious wrote:There's a miscommunication here. There is no support for Intel iGPUs at this point. All the discussion in this thread referencing Intel pertains to running FAHBench on the CPU.

Support for Intel iGPU was only provided by FAHBench and with the new version of FAHBench, it's a driver issue (viewtopic.php?p=242450#p242450). The older version still works but that's not very useful since OpenMM 5.1 is being used by the current FahCore_17 and is the future. Let's hope that Intel will address this issue soon in their driver release.

PantherX wrote:I was under the impression that the GPU Drivers provided support for OpenCL on Intel CPU/iGPU thus is needed. So if no iGPU drivers are installed, the application would still run on the CPU using OpenCL?

No you don't need the graphics driver. If you just need OpenCL for your CPU you only need to install the separate OpenCL package called OCLSetup.exe.

bruce wrote: Of course you need drivers for your onboard Intel HD4000 needs graphics drivers and drivers which support OpenCL version 1.x.

Read my posting again: You don't need a graphics driver for your CPU.

bruce wrote: The question about what version you're running is a valid question, especially when we're talking about OpenCL support.

This is not accurate. Build version of the OpenCL package is what matters. For your CPU the graphics driver is irelevant. Your CPU don't need a graphics driver.

Okay, so I am guessing that to get the OCLSetup.exe, you would have to download the .zip and not the .exe, right?

That doesn't make a difference. You can extract the exe with 7zip or whatever. You could also download the CPU only driver from this page: http://software.intel.com/en-us/vcsourc ... opencl-sdk

The CPU only OpenCL package installed OK even on my Atom330 and the the CPU OpenCL device showed up in FAHBench. Of course, the benchmarked failed almost instantly - the full SDK install says Atom330 is unsupported and quits.

BTW, has anyone (else) tried benchmarking an older CPU (no AES NI / AVX support)? Intel is rather vague about what CPUs are supported - just from Core i3 CPUs upwards. Not all of those have fancy new instruction sets. Could SSE 4.2 support be the deciding factor?

I tried it on my Intel Core2 Duo (E8400) @3.0 GHz

Explicit SP: 0.7939 ns/day (10% done)
Implicit SP: crashed

Nvidia Titan @ 867Mhz Core / 1502Mhz Memory
OpenCL Explicit SP -> 46.7845 ns/day
OpenCL Implicit SP -> 188.677 ns/day

CUDA - Double Precision - OFF
OpenCL Explicit DP -> 9.7529 ns/day
OpenCL Implicit DP -> 14.2992 ns/day

CUDA - Double Precision - ON
OpenCL Explicit DP -> 17.5566 ns/day
OpenCL Implicit DP -> 28.4328 ns/day

Anandtech reports FAHBench 1.2 numbers for Titan, the new GTX 780, AMD 7990 and 7970.
http://anandtech.com/show/6973/nvidia-g ... -review/18
Quite a few high watermarks
rgds,
Andy

Zotac GTX 660 @1124 MHz core, 1502 MHz memory
Win7 64-bit, Nvidia 314.22 drivers

OpenCL Explicit SP: 23.9794 ns/day
OpenCL Implicit SP: 95.8626 ns/day

(By the way, it would be helpful if someone with an HD 7790 would submit data.)

Started FAHBench with my HD7790, Factory OC [1075MHz Boost Clock]

Soon I got a Windows pop-up saying FAHBench has stopped working.

Faulting App name: FAHBench.exe
Faulting module name: nt.dll v6.1.7601.17725
Exception Code: 0xc0000005
Fault offset: 0x00038dc9
Faulting modlue path: C:\Windows\sysWow64\ntdll.dll

Windows Version 6.1.7600.16385

It seems to be reproducible if somebody wants some more information.

I'm successfully running FahCore_17 on this same setup using the special nvidia drivers for the HD 7790.
Drivers: AMD_Radeon_HD_7790_12.101.2.1-130416a.exe

(OpenCL:)

Implicit SP: crash 0xc0000005 shown above.
Implicit DP: 3.03048 ns/day

Explicit SP: 5.29842
Explicit DP: 1.60741

Some results:

Win7 64Bit Catalyst 13.4 WHQL

Intel i7 875K@3826 MHz

OpenCL SP:
Explicit Solvent: 2.47228 ns/day
Implicit Solvent: AppCrash


Sapphire Radeon HD5870 (Cypress) 850/1200 MHz

OpenCL SP:
Explicit Solvent: 13.2673 ns/day
Implicit Solvent: 57.037 ns/day


Sapphire Radeon HD 7870GE OC (Pitcairn XT) 1050/1250 MHz

OpenCL SP:
Explicit Solvent: 26.8991 ns/day
Implicit Solvent: AppCrash - but Core17 is running without any issue.

Updated the first post. Thanks for your submissions.

JimF -> Please note that I can't include your Implicit result since the benchmark never completed. If you have values of a finished run, I can then include it.