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Could someone help me out with the installation of App SDK 2.1? I found it in the archives page on ATI's website, but I can't seem to replace SDK 2.4 with it.
Here's the download page: http://developer.amd.com/sdks/AMDAPPSDK/downloads/pages/AMDAPPSDKDownloadArchive.aspx

uninstall 2.4 then install 2.1

Ah, forgot to post that I solved this. I figured out that out of the 2.1 package you only need the V2 development package, not anything else like the stream kernel anlyzer or V2 samples.

well at least ya got it sorted

Can anyone give me a download location for SDK 2.1
Thank you

I dont think you can DL 2.1 anymore. Is there any reason you need 2.1, where 2.5 (http://developer.amd.com/tools/heterogeneous-computing/amd-accelerated-parallel-processing-app-sdk/downloads/download-archive/) won't work?

Here is the installer for 2.1 SDK. It does not contain any of the extra stuff (kernel analyzer, etc). This is the only thing you need as far as an openCL platform for mining is concerned. https://dl.dropbox.com/u/9768004/ATIStreamSDK_dev.msi

Also I found cgminer/bfgminer and guiminer won't find 2.1 SDK normally. Install 2.4/2.5/2.6, then install 2.1 after that (11.12 or 12.1 driver is recommended for 2.1 SDK). Doing it in reverse will cause the higher version to remove access to 2.1. 2.1 will not replace the higher version; it will coexist. You can use GPU Caps Viewer to confirm the installation of opencl platforms. You will need to specify the correct platform to mine on. Pre-2.0 Phoenix uses the PLATFORM command. In 2.0 or higher, the number in bold red specifies the platform.

[cl:1:2]
name = GPU name
kernel = phatk2
AGGRESSION = 3
VECTORS = true
BFI_INT = true
WORKSIZE = 128

In CG/BFGMiner, specify the platform with the "gpu-platform" argument. For me, it's "gpu-platform" : 1 (I use a config file)

Thank you, but I need the DLL files, because I don't want to use 2-3 platforms on one PC.

i have it at www.nogleg.com/archive/ATIStreamSDK_2.1_dev.msi    

as well (this must be whole package though, based on size.. well, yeah, since it's dev)

what files would be diff for 2.1?  i guess i could run it

U can install the 2.1 SDK but I need change to PLATFORM 2 and I just want to replace the .dll files which are:

Windows\System32\amdocl64.dll
Windows\System32\amdoclcl64.dll
Windows\System32\OpenCL.dll

Windows\SysWOW64\amdocl.dll
Windows\SysWOW64\amdoclcl.dll
Windows\SysWOW64\OpenCL.dll

2.1 doesn't work like that. Thats why you can have 2.1 installed along side of 2.4/2.5/2.6. As far as I know, it's not possible to just drop in some DLL files and it works magically like 2.4 or higher. You need to run the installer.. The 2.1 SDK files are installed somewhere else and are not the same filename or filetype.

IDK, I've never reverted to anything lower than SDK 2.5, but I'm thinking of downclocking my mem to 150-160 for some more efficiency against the ASIC threat.

I've not found a better performing SDK than v2.1, it's still the king. And yes, you must install it after installing the higher vSDK or it will not register/be found by your miner.

Hi, I need some help.

*edit*: I'm realizing I'm posting this here but I'm actually mining LTCs not BTCs, well my brain is gone lol. If you can help me anyway I'd appreciate ;)

Win 7 64-bit / cgminer 3.7.2 / HD5870 (CPU 875Mhz, MEM 1250Mhz)

I've been using AMD drivers 13.9 with the bundled OpenCL for some days but I'm not satisfied with the performances, around 360Mh/s but with -I 15 and temperature of 88-89.5 C, very HIGH if compared with the ones I've read in other threads in this forum of around 60-70 C ( how do you do that guys btw?! :( )

So I decided to change the drivers/opencl configuration according to what it's best that it's told to be AMD 11.12 and OpenCL 2.1

It wasn't easy to download them but I finally found them:

11-12_vista64_win7_64_dd_ccc_enu.exe
ATIStreamSDK_dev.msi (opencl 2.1)

So I rebooted in safe mode to remove current display drivers and used an utility found on guru3d, DDU: DDU v9.8.4.exe It worked nice resolution went to 800x600. Did a search for opencl.dll in c:\ and no results were found.

Installed 11.12, rebooted

Installed ATIStreamSDK_dev.msi and according to this, it seems it got installed as platform 2. My gpu cypress is listed as #2 device while the #1 is my cpu i5 750:

http://dec.imghost.us/pojZ.png

Deleted a .bin file in cgminer folder because I read it is compiled according old version of OpenCL so it cgminer would crash.

Now, my cgminer bat file was:


If I run the same way, I get exactly same Mh/s 360 and 88 C as temperature as before :(

So I suppose I have to switch to platform 2 and according to cgminer's help it's done with --gpu-platform. Here I don't know if platforms starts from 0 but if the default is -1 I suppose starts from 1, so I tried adding this to cgminer command line:


If I run this, I get this:

http://dec.imghost.us/pojz.png

"clDevicesNum returned error, no GPUs usable"

Any idea how to fix this? :(

Cant mine scrypt on sdk 2.1