Issue with OS X 10.9 Mavericks?
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Profile David Riese
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Message 19778 - Posted: 14 Aug 2014, 13:16:22 UTC - in response to Message 19718.

Much thanks to Chipotle and Gavin for sharing their experiences with the new MacPro 6,1. Their observation that the AMD GPUs in these MacPros could not crunch C@H units under OS X 10.9 was a game changer for me; crunching C@H GPU work units and OS X 10.9 compatibility are priorities for me. Hence, I have replaced my BTO/CTO iMac 12,1 with a 2008 MacPro 3,1. The MacPro 3,1 has been significantly upgraded; I added two internal HDs to the (stock?) 320 GB conventional HD: a 500 GB 3G SSD and a 3 TB conventional HD (2 partitions). I installed OS X 10.9.4 on the SSD and maintained OS X 10.8.5 on the 320 GB drive (just in case). I replaced the AMD HD 5770 GPU with an EVGA GeForce GTX 680 Mac Edition GPU. These upgrades have yielded a slight uptick in C@H productivity (~135K credits/day to ~150K credits/day). More, importantly, however, the everyday usability (speed) of this unit has dramatically increased and the unit has been very stable under OS X 10.9. All in all, this was a successful, albeit a bit pricey (~$1100 USD) upgrade. Of course, I now have a AMD HD 5770 GPU to install in one of my other Macs.

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Message 19779 - Posted: 14 Aug 2014, 14:14:20 UTC - in response to Message 19778.

Much thanks to Chipotle and Gavin for sharing their experiences with the new MacPro 6,1. Their observation that the AMD GPUs in these MacPros could not crunch C@H units under OS X 10.9 was a game changer for me; crunching C@H GPU work units and OS X 10.9 compatibility are priorities for me. Hence, I have replaced my BTO/CTO iMac 12,1 with a 2008 MacPro 3,1. The MacPro 3,1 has been significantly upgraded; I added two internal HDs to the (stock?) 320 GB conventional HD: a 500 GB 3G SSD and a 3 TB conventional HD (2 partitions). I installed OS X 10.9.4 on the SSD and maintained OS X 10.8.5 on the 320 GB drive (just in case). I replaced the AMD HD 5770 GPU with an EVGA GeForce GTX 680 Mac Edition GPU. These upgrades have yielded a slight uptick in C@H productivity (~135K credits/day to ~150K credits/day). More, importantly, however, the everyday usability (speed) of this unit has dramatically increased and the unit has been very stable under OS X 10.9. All in all, this was a successful, albeit a bit pricey (~$1100 USD) upgrade. Of course, I now have a AMD HD 5770 GPU to install in one of my other Macs.


Congrats on the upgrade!

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Message 19780 - Posted: 14 Aug 2014, 20:29:24 UTC - in response to Message 19779.

Thanks, Slicker!

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Message 19929 - Posted: 10 Oct 2014, 3:15:02 UTC
Last modified: 10 Oct 2014, 3:24:31 UTC

Once again, I am considering an upgrade and looking for advice from the Mac/C@H community. I need to replace a 2006 Mac Pro 1,1. I am considering a 2008 Mac Pro 3,1 (dual quad core 3.0 GHz Xeon, 14 GB RAM, two NVIDIA GeForce 8800GT GPUs, OS X 10.9.x, dual 1920x1080 monitors). How best should I connect the monitors to the GeForce 8800GTs? One monitor per video card? Two monitors for one and zero monitors for the other? Are there any tricks for configuring BOINC or C@H? I would like to maximize application usability (MS Office, Mail, Safari, EndNote, Evernote) and C@H RAC. Thanks in advance for the advice.

BTW, my previous MacPro 3,1 upgrade experience (see post below) has been an unqualified success. The machine is rock-solid stable, runs all of my apps at least as fast or faster than my BTO iMac i7, and has a C@H RAC of >240K. The only issue that I need a small fan under my desk to disperse the heat - otherwise my desk warms up to ~30C. Whew!

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Message 19932 - Posted: 10 Oct 2014, 5:21:49 UTC
Last modified: 10 Oct 2014, 5:24:47 UTC

Is there an equivalent to tthrottle for OS X, that will allow you to set a target temperature for your under-desk space heater? My latest desktop upgrade also gets a little toasty, though this one's a Windows machine so I could use tthrottle if I deem it necessary--but probably not necessary over fall/winter. Haven't had any issues with my iMac, but it's just got a single HD6750M, not a very high TDP.
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Message 19948 - Posted: 15 Oct 2014, 17:28:00 UTC

Hi all,

I get same error just when task start whatever kind of task, I am using iMac 27" 11.1 with AMD Radeon HD 6770M under Mavericks 10.9.5, do you have a kind of way to fix this issue?

Thanks in advance

Best regards.

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Message 20012 - Posted: 31 Oct 2014, 4:49:23 UTC - in response to Message 19948.

Hi all,

I get same error just when task start whatever kind of task, I am using iMac 27" 11.1 with AMD Radeon HD 6770M under Mavericks 10.9.5, do you have a kind of way to fix this issue?

Thanks in advance

Best regards.


The only known fix is to disable optimization of the OpenCL kernel but results in it running so slow that the CPU app is actually faster.

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Message 20018 - Posted: 31 Oct 2014, 23:55:41 UTC

Hi all!

A guy of my team is using C@H with Mavericks on its Mac!!
I don't know if that works because he have boinc 7.5 or because its graphic card works with opencl 1.0!!!

Here is its computer : http://boinc.thesonntags.com/collatz/hosts_user.php?userid=42433

...

Profile David Riese
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Message 20107 - Posted: 10 Dec 2014, 16:38:26 UTC

My early 2008 PowerMac 3,1 crunches C@H GPU tasks under OS X 10.9.5 using an NVIDIA GeForce GTX 680 (2 GB) GPU. While this is not a "stock" GPU for the PowerMac 3,1, it is compatible.

BTW, this week I had some problems for 3-4 days with C@H GPU tasks on this machine. The tasks would finish prematurely with an error message. Resetting C@H did not resolve the problem. I "fixed" the problem by updating BOINC to 7.4.26.

Profile David Riese
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Message 20122 - Posted: 14 Dec 2014, 13:46:00 UTC

I have a BTO i7 iMac with an AMD 6770M GPU that won't crunch C@H GPU tasks - it is running OS X 10.9 and OpenCL 1.02. I wonder if it is possible to force a downgrade to OpenCL 1.00? However, before I did that, I would see if upgrading BOINC to 7.4.26 resolves the issue.

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Message 20135 - Posted: 16 Dec 2014, 15:55:26 UTC
Last modified: 16 Dec 2014, 15:59:43 UTC

Nope!! The problem is REALY openCL newer than 1.0, perhaps 1.01!!
You can try to downgrade to OS X 10.8.x.

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Message 20140 - Posted: 18 Dec 2014, 15:56:33 UTC - in response to Message 20135.

Nope!! The problem is REALY openCL newer than 1.0, perhaps 1.01!!
You can try to downgrade to OS X 10.8.x.


If that is the case, then adding the following to the config may work:

build_options=-cl-std=CL1.0


In theory, that should tell it to use OpenCL 1.0 so the compiler would not use the 1.1 or 1.2 enhancements. I know that if you disable all optimization it works. The question is whether it is only an OpenCL 1.1 or 1.2 optimization that is causing the problem. If it is, then the above should work.

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Message 20148 - Posted: 19 Dec 2014, 18:41:58 UTC

Hi Slicker!

I've modified the "large_collatz_6.06_x86_64-apple-darwin__opencl_amd_gpu.config" file.

Now it contains that :
verbose=1
items_per_kernel=22
kernels_per_reduction=9
threads=10
sleep=1
build_options=-Werror
build_options=-cl-std=CL1.0

Not better!

Here's the STDERR :

Stderr output

<core_client_version>7.4.27</core_client_version>
<![CDATA[
<message>
process exited with code 245 (0xf5, -11)
</message>
<stderr_txt>
Collatz Conjecture v6.05 OS X x86_64 for OpenCL
Based on the AMD Brook+ kernels by Gipsel
verbose=1
items_per_kernel=20
kernels_per_reduction=9
threads=10
sleep=1
build_options=-Werror
Unrecognized command: build_options=-werror
build_options=-cl-std=CL1.0
Unrecognized command: build_options=-cl-std=cl1.0
Config: verbose=1 items_per_kernel=1048576 kernels_per_reduction=512 threads=1024 sleep=1
Platform: ADVANCED MICRO DEVICES
Device: 0x1021c00
OpenCL context created
OpenCL command queue created
OpenCL program created
BUILD LOG
Error returned by cvms_element_build_from_source
clBuildProgram() failed (-11) Program build failure
Error -11. Processing Aborted.
19:10:24 (21935): called boinc_finish

</stderr_txt>

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