HD 4000 Collatz

[Al]

I totally discounted the idea of using the onboard graphics, but Z changed my mind. Unfortunately, I'm having an issue and I'm not sure if it's me or Collatz. I got the drivers updated and set the Intel 4000 as primary in the bios. Got the dummy plug attached. The Event Log is here:

2/27/2014 12:17:09 PM | | CUDA: NVIDIA GPU 0: GeForce GTX 570 (driver version 332.21, CUDA version 6.0, compute capability 2.0, 1280MB, 1182MB available, 1728 GFLOPS peak)
2/27/2014 12:17:09 PM | | CUDA: NVIDIA GPU 1: GeForce GTX 570 (driver version 332.21, CUDA version 6.0, compute capability 2.0, 1280MB, 1182MB available, 1728 GFLOPS peak)
2/27/2014 12:17:09 PM | | OpenCL: NVIDIA GPU 0: GeForce GTX 570 (driver version 332.21, device version OpenCL 1.1 CUDA, 1280MB, 1182MB available, 1728 GFLOPS peak)
2/27/2014 12:17:09 PM | | OpenCL: NVIDIA GPU 1: GeForce GTX 570 (driver version 332.21, device version OpenCL 1.1 CUDA, 1280MB, 1182MB available, 1728 GFLOPS peak)
2/27/2014 12:17:09 PM | | OpenCL: Intel GPU 0: Intel(R) HD Graphics 4000 (driver version 10.18.10.3412, device version OpenCL 1.2, 1496MB, 1496MB available, 45 GFLOPS peak)


2/27/2014 12:44:58 PM | Collatz Conjecture | Requesting new tasks for NVIDIA and intel_gpu

Everything seems good, but I'm getting no Intel wus. Am I missing something or is Collatz out of work for Intel?

[myshortpencil]

I had to completely remove collatz from Boinc Manager and reinstall it. Then, at the website, I set Use Intel GPU to yes. After doing both, Collatz ran fine for me. Cheers

[Al]

It finally started downloading work without further intervention. I'm curious to see it's production. Increased cpu temps 0 degrees c, which I like.

[myshortpencil]

I forgot. WUs didn't download immediately, like with most projects, but an hour or two later. Then, the Intel GPU WUs started coming in. So, delayed start-up seems normal.

[Al]

Please change your avatar...I always feel like taking a shower when she looks at me. Thanks in advance.

[DrPop]

Please change your avatar...I always feel like taking a shower when she looks at me. Thanks in advance.

I kind of like looking at her! LOL...but whenever my daughter happens to see a page where he posts, she says, Dad, WHO is that?

[Al]

I was looking at Z's times using the HD 4000 on Collatz and I found like wus that were taking me almost 10,000 seconds more to complete. In looking at the wu details I noticed Z's Max Clock to be 1200 where mine is showing a Max Clock 350.

@Z - did you overclock your HD 4000's? Just curious. I see Intel has a Utility to help with overclocking.

Edit: I used the utility to oc to 1250. I'll let it run over night and see how it goes.

[zombie67]

My HD 4000 are in my mac mini machines. So maybe the OSX client displays HW differently? Trust me, there is no way to OC a CPU in OSX, much less the GPU inside the CPU. Putting aside the reported clock speeds, I think I may know the problem. I used to have a windows box with HD 4000. It required a full thread to make the GPU load to max out. What does GPU-Z* say about your GPU load? Is it maxed out? Do you have a full thread reserved?

*GPU-Z is the only GPU load monitor that will work with Intel HD, I think.

[Al]

I have 1 core/thread reserved for each of the 570s and 1 for the HD 4000. GPU-Z (thanks for letting me know that) is showing 94% usage. Maybe I'll just let it get another wu or two under it's belt and we'll revisit it if times don't improve. Thanks again.

[zombie67]

Oh! Also, Slicker is working on sending smaller tasks to slower GPUs. All WIP, I think. So maybe your GPU got a "big" task, and had a bigger run time? Be sure to compare c/h and not just h.