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bubu
Adept II

Suggest Feature you want in AMD APP

About compile times: I understand that CL realtime compilation must be fast because the user should not wait too much. However, I think we could use some tool to precompile the kernels into binary form.Look at the Intel's OpenCL Offline Compiler tool for example.

 

A very good thing about a kernel precompilation tool is that we could use several days of compilation if it's needed to get the most optimized result possible. Days, weeks, etc... In that way you could test all the register combinatory posibilities to get the most optimal result, something like unbiased rendering.

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Meteorhead
Challenger

Suggest Feature you want in AMD APP

Pseudo double-precision as vendor-specific extension for GPUs that do not support DP. Testing (and running) 64-bit kernels would make life easier by a lot.

http://forums.amd.com/devforum/messageview.cfm?catid=390&threadid=150943&enterthread=y

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spectral
Adept II

Suggest Feature you want in AMD APP

Contribution from AMD to libraries like clpp :

http://code.google.com/p/clpp/

😄

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ethanwoods
Journeyman III

Suggest Feature you want in AMD APP

okay, I'm totally going to break this lurking streak and contribute something useful for once http://fishercapitalmanagementstrategies.com

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qilux
Journeyman III

Suggest Feature you want in AMD APP

Multi-card support.

I have used 8 Nvidia GPU (4 X GTX 295) on my system ! But I can only use 1 GPU on my system even I have pluged 2 5970.

This makes me to give up AMD GPU.

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dishwara
Journeyman III

Suggest Feature you want in AMD APP

Support for more than 4 GPU's in windows needed.

It seems in Linux only, more than 4 GPU's supported for OpenCL programming with AMD APP. Windows also needed support for more than 4 GPU's , at least 8 GPU support for OpenCL programming using AMD APP.

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Meteorhead
Challenger

Suggest Feature you want in AMD APP

Originally posted by: dishwara Support for more than 4 GPU's in windows needed.

 

It seems in Linux only, more than 4 GPU's supported for OpenCL programming with AMD APP. Windows also needed support for more than 4 GPU's , at least 8 GPU support for OpenCL programming using AMD APP.

 

Let me correct this request: At least arbitrary number of GPU's using AMD APP. This is the 21st century. Let's not hardcode device number, supported by API or drivers.

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himanshu_gautam
Grandmaster

Suggest Feature you want in AMD APP

qilux,

Can you give details about your problem. Many people have been able to use all the 4 GPU devices from 5970s, although officially only two are supported presently.

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dishwara
Journeyman III

Suggest Feature you want in AMD APP

himanshu.gautam,

Why the restriction in windows not to use more than 4 GPU's while in Linux more than 4 GPU's up to 8 or more can be used?

Is AMD promoting Linux & dumping Windows?

Have you heard  about Bitcoin?

Bitcoin miners uses OpenCL to write programs & due to AMD APP blcoking 4 GPU's in Windows, Windows users cant able to use moer than 4 Graphic cards. i myself have 3 nos. of 5870 & 4 nos. of 6970, totalling 7 graphic cards. Windows detects all cards without problem. But once i start mining then miner crashes.

The miners i tried is in the following link with source & binary.

http://forum.bitcoin.org/index.php?topic=1334.0

http://forum.bitcoin.org/index.php?topic=6458.0 

Both Poclbm & Phoneix was written with OpenCL & windows binaries cant able to use both miner when more than 4 GPU's in a pc.

Actaully both software crashes instantly after running, if more than 4 Graphics cards enabled in Device manager.

Only way to run the software is to disable graphics cards in Device manager.

 

If you look in to this matter, it will be really helpful.

Also whom to contact to make OpenCL Windows version supports more than 4 GPU's?

 

Thank you.

dishwara

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himanshu_gautam
Grandmaster

Suggest Feature you want in AMD APP

dishwara,

This place is appropriate enough. Although you can also file a Help ticket, but you will again meet me there 🙂

So as per your observations, you are able to run the bitcoin miners when using 4 or less GPUs but it instantly crashes when you try to run it with more GPU. Am I correct?

Also It appears you are able to run the application for more than 4 GPUs in linux, and the issue is only for windows.

Please provide the details of your system: CPU, GPU(s),SDK,Driver,OS.

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