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Author Topic: OpenCL Upgrades in Mac OS X Lion  (Read 3799 times)
rethaw
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June 15, 2011, 04:20:40 AM
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Some anecdotal evidence that OpenCL support has improved for mining purposes. robin1979 is seeing speeds on par with Windows and Linux.

http://forum.bitcoin.org/index.php?topic=12360.msg219345#msg219345

If you are running Lion preview or switch to it when its released please post your results to this thread.

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rb2k
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June 15, 2011, 01:15:58 PM
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According to me, I had almost a 20% increase after switching to Lion.
I don't remember the exact numbers anymore, I just know it was beneficial Smiley
rethaw
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June 15, 2011, 03:51:03 PM
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Mind posting numbers for your current setup (vid card, Mhash/s)? We could at least compare to people with the same MBP that haven't upgraded yet.

Thanks.

MacCompiler
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June 16, 2011, 01:08:51 AM
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I’ve noticed the opposite with Lion Dev. Prev. 4 Update 1. I’ve got a 10% decline.

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June 16, 2011, 01:17:10 AM
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I’ve noticed the opposite with Lion Dev. Prev. 4 Update 1. I’ve got a 10% decline.

Which miner and hardware are you using? Thanks.

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June 16, 2011, 04:35:42 AM
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My guess is that this has something to do with Apple pulling back Java development. Are you using Diablo by chance?

No Java in Mac OS X Lion

OpenCL in OSX Lion to Give FCP X Huge Performance Hike

rb2k
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June 16, 2011, 05:19:50 PM
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Java is still available, just as an "extra" download no Lion.

I'm currently using phoenix 1.48 and my Macbook Pro with an AMD Radeon HD 6750M GPU is hashing at 67-68 MH/s on the dev preview 5 of Lion
rethaw
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June 16, 2011, 06:05:17 PM
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Java is still available, just as an "extra" download no Lion.

Java will always be available in some form or another. I'm just wondering if it is going to languish as Apple has been fairly clear about not spending time on it.

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I'm currently using phoenix 1.48 and my Macbook Pro with an AMD Radeon HD 6750M GPU is hashing at 67-68 MH/s on the dev preview 5 of Lion

Mind testing Diablo and see how it compares? Thanks.

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June 17, 2011, 02:21:59 PM
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About 4-5 mh/s worse. I initially started with Diablo and moved later.
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