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    Author Topic: OFFICIAL CGMINER mining software thread for linux/win/osx/mips/arm/r-pi 4.11.1  (Read 5806475 times)
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    • iopq
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    August 22, 2011, 12:20:25 PM
     #1021
    1.5.7 is just 3mhash/s slower on my 5750 down from 144 or so to 141

  • -ck (OP)
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    August 22, 2011, 12:37:01 PM
     #1022
    Quote from: iopq on August 22, 2011, 12:20:25 PM
    1.5.7 is just 3mhash/s slower on my 5750 down from 144 or so to 141
    Copy the old phatk110816.cl file from 1.5.6 into your 1.5.7 directory and rename it phatk110817.cl (overwriting the new one). Then delete any .bin files created and start again. See if that restores the speed. The kernel may behave differently depending on which core it is.
    Developer/maintainer for cgminer, ckpool/ckproxy, and the -ck kernel
    2% Fee Solo mining at solo.ckpool.org
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  • neptop
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    August 22, 2011, 01:11:44 PM
     #1023
    Hmm, I just noticed the miner (at least .6 and .7) have a lot of CPU usage (looks like it maxes it out for both cores) on Windows 7. I remember it has been around 10-20% in earlier versions. I am not sure whether it is related to a driver upgrade. There is a difference between GPU0 and ALL hashrates. It looks like it would use my CPU. I tried adding -t0, but it doesn't help.
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  • iopq
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    August 22, 2011, 01:13:07 PM
     #1024
    Quote from: ckolivas on August 22, 2011, 12:37:01 PM
    Quote from: iopq on August 22, 2011, 12:20:25 PM
    1.5.7 is just 3mhash/s slower on my 5750 down from 144 or so to 141
    Copy the old phatk110816.cl file from 1.5.6 into your 1.5.7 directory and rename it phatk110817.cl (overwriting the new one). Then delete any .bin files created and start again. See if that restores the speed. The kernel may behave differently depending on which core it is.
    Still get around 141mhash/s

    I did the opposite test and put in the new kernel into the old version and I get about 143 mhash/s but I get hardware errors (well, that should have been expected, you obviously changed stuff)

  • -ck (OP)
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    August 22, 2011, 01:20:37 PM
     #1025
    Quote from: neptop on August 22, 2011, 01:11:44 PM
    Hmm, I just noticed the miner (at least .6 and .7) have a lot of CPU usage (looks like it maxes it out for both cores) on Windows 7. I remember it has been around 10-20% in earlier versions. I am not sure whether it is related to a driver upgrade. There is a difference between GPU0 and ALL hashrates. It looks like it would use my CPU. I tried adding -t0, but it doesn't help.
    High CPU usage has been plaguing recent driver versions, to the point of increasing CPU usage on linux to match that of the windows driver. On Linux at least, downgrading to the 11.6 driver makes a massive difference to the CPU usage. Some new code in the driver that does busy-waiting to improve throughput on the GPU also causes 100% (of one core) load. It's been annoying the hell out of me and someone else on this forum found the small sacrifice in GPU throughput by downgrading his driver was well worth the massive drop in CPU usage.
    Developer/maintainer for cgminer, ckpool/ckproxy, and the -ck kernel
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  • neptop
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    August 22, 2011, 01:25:22 PM
     #1026
    That's bad. Earlier this was a problem limited to Windows (because of some lib IIRC), right? So there is no other workaround?

    EDIT: Oh and one core? Two cores are in use here. (I see, two threads...)
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  • -ck (OP)
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    August 22, 2011, 01:28:01 PM
     #1027
    Quote from: neptop on August 22, 2011, 01:25:22 PM
    That's bad. Earlier this was a problem limited to Windows (because of some lib IIRC), right? So there is no other workaround?
    Yes it was just limited to windows, but I've not found any workaround apart from downgrading to 11.6 on linux. All mining software is affected, not just cgminer.
    Developer/maintainer for cgminer, ckpool/ckproxy, and the -ck kernel
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  • neptop
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    August 22, 2011, 01:38:05 PM
     #1028
    We need Open Source drivers with OpenCL support! Smiley
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    August 22, 2011, 01:41:37 PM
     #1029
    Quote from: iopq on August 22, 2011, 01:13:07 PM
    Quote from: ckolivas on August 22, 2011, 12:37:01 PM
    Quote from: iopq on August 22, 2011, 12:20:25 PM
    1.5.7 is just 3mhash/s slower on my 5750 down from 144 or so to 141
    Copy the old phatk110816.cl file from 1.5.6 into your 1.5.7 directory and rename it phatk110817.cl (overwriting the new one). Then delete any .bin files created and start again. See if that restores the speed. The kernel may behave differently depending on which core it is.
    Still get around 141mhash/s

    I did the opposite test and put in the new kernel into the old version and I get about 143 mhash/s but I get hardware errors (well, that should have been expected, you obviously changed stuff)
    No, actually the kernels from 1.5.6 and 1.5.7 should be interchangeable as they take the same arguments and return the same output, provided the filename is changed to suit the release version.
    Developer/maintainer for cgminer, ckpool/ckproxy, and the -ck kernel
    2% Fee Solo mining at solo.ckpool.org
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  • iopq
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    August 22, 2011, 03:36:41 PM
     #1030
    Quote from: ckolivas on August 22, 2011, 01:41:37 PM
    Quote from: iopq on August 22, 2011, 01:13:07 PM
    Quote from: ckolivas on August 22, 2011, 12:37:01 PM
    Quote from: iopq on August 22, 2011, 12:20:25 PM
    1.5.7 is just 3mhash/s slower on my 5750 down from 144 or so to 141
    Copy the old phatk110816.cl file from 1.5.6 into your 1.5.7 directory and rename it phatk110817.cl (overwriting the new one). Then delete any .bin files created and start again. See if that restores the speed. The kernel may behave differently depending on which core it is.
    Still get around 141mhash/s

    I did the opposite test and put in the new kernel into the old version and I get about 143 mhash/s but I get hardware errors (well, that should have been expected, you obviously changed stuff)
    No, actually the kernels from 1.5.6 and 1.5.7 should be interchangeable as they take the same arguments and return the same output, provided the filename is changed to suit the release version.
    oh, maybe it's from switching kernels many times in a short period of time, the GPU maybe doesn't flush the code correctly?

    anyway, I get the same speeds with both kernels in 1.5.6 - 143.5ish
    and I get the same speeds with both kernels in 1.5.7 - 141

  • phase
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    August 22, 2011, 04:15:05 PM
     #1031
    Same here, 1.5.6 is noticeably faster than 1.5.7 at the same speeds on 2 x 5970.

  • Yanz
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    August 22, 2011, 05:40:12 PM
     #1032
    Quote from: ckolivas on August 21, 2011, 09:33:04 PM
    Quote from: Yanz on August 21, 2011, 03:15:06 PM
    Is there a reason cgminer 1.5.6 won't fail over to a backup pool? When my primary pool goes down, cgminer sits there and says the pool is not responding repeatedly. I have to manually switch to the second pool and then it will start mining away.

    I have it setup on failover mode and when I check the pool screen it says both pools are alive.
    It will generate local work from a failed pool for up to 5 minutes after a pool has gone down. If in that time the pool still hasn't come back up, only then will it switch.
    Can I manually change that?
    Also my problem gets worse...cgminer crashes with this log error.
    Code:
    [2011-08-22 17:23:27] GPU 0  Q:184  A:189  R:2  HW:0  E:103%  U:5.42/m                   
    [2011-08-22 17:23:29] HTTP request failed: Empty reply from server                   
    [2011-08-22 17:23:29] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:31] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:31] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:31] Pool 0 communication failure, caching submissions                   
    [2011-08-22 17:23:31] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:33] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:33] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:33] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:34] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:34] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:34] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:36] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:36] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:36] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:38] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:38] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:38] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:38] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:38] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:38] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:39] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:39] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:39] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:39] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:39] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:39] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:40] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:40] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:40] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:40] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:40] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:40] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:41] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:41] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:41] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:42] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:42] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:42] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:42] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:42] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:42] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:43] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:43] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:43] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:44] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:44] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:44] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:44] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:44] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:44] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:44] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:44] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:44] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:45] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:45] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:45] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:45] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:45] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:45] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:45] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:45] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:45] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:46] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:46] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:46] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:46] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:46] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:46] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:46] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:46] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:46] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:47] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:47] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:47] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:47] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:47] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:47] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:47] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:47] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:47] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:48] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:48] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:48] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:49] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:49] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:49] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:49] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:49] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:49] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:49] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:49] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:49] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:50] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:50] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:50] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:50] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:50] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:50] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:50] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:50] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:50] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:51] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:51] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:51] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:51] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:51] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:51] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:51] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:51] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:51] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:52] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:52] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:52] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:52] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:52] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:52] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:53] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:53] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:53] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:54] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:54] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:54] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:54] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:54] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:54] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:54] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:54] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:54] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:55] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:55] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:55] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:55] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:55] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:55] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:55] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:55] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:55] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:56] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:56] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:56] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:56] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:56] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:56] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:56] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:56] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:56] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:57] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:57] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:57] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:57] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:57] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:57] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:57] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:57] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:57] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:58] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:58] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:58] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:59] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:59] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:23:59] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:23:59] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:59] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:59] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:59] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:23:59] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:23:59] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:23:59] longpoll failed for http://buttoncommand.net:8000/LP, sleeping for 30s                   
    [2011-08-22 17:24:00] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:00] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:00] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:00] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:00] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:00] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:00] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:00] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:00] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:00] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:01] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:01] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:01] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:01] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:01] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:01] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:01] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:01] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:01] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:24:02] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:02] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:02] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:24:02] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:02] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:02] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:24:02] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:02] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:02] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:24:03] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:03] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:03] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:24:04] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:04] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:04] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:04] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:04] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:04] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:24:04] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:04] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:04] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:24:05] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:05] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:05] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:05] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:05] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:05] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:05] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:05] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:05] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:06] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:06] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:06] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:06] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:06] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:06] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:07] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:07] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:07] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:24:07] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:07] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:07] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:24:07] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:07] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:07] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:24:07] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:07] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:07] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:24:08] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:08] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:08] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:24:09] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:09] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:09] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:09] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:09] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:09] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:24:09] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:09] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:09] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:24:10] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:10] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:10] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:10] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:10] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:10] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:11] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:11] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:11] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:11] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:11] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:11] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:12] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:12] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:12] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:24:12] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:12] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:12] json_rpc_call failed on submit_work, retry after 5 seconds                   
    [2011-08-22 17:24:12] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:12] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:12] Stale share detected, discarding                   
    [2011-08-22 17:24:12] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:12] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:12] Stale share detected, discarding                   
    [2011-08-22 17:24:14] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:14] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:14] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:14] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:14] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:14] Stale share detected, discarding                   
    [2011-08-22 17:24:14] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:14] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:14] Stale share detected, discarding                   
    [2011-08-22 17:24:15] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:15] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:15] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:15] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:15] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:15] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:15] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:15] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:15] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:16] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:16] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:16] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:16] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:16] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:16] Stale share detected, discarding                   
    [2011-08-22 17:24:16] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:16] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:16] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:17] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:17] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:17] Stale share detected, discarding                   
    [2011-08-22 17:24:17] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:17] submit_upstream_work json_rpc_call failed                   
    [2011-08-22 17:24:17] Stale share detected, discarding                   
    [2011-08-22 17:24:19] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:19] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:19] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:20] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:20] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:20] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:20] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:20] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:20] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:20] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:20] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:20] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:21] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:21] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:21] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:21] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:21] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:21] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:24] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:24] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:24] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:25] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:25] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:25] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:25] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:25] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:25] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:25] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:25] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:25] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:26] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:26] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:26] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:26] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:26] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:26] json_rpc_call failed on get work, retry after 5 seconds                   
    [2011-08-22 17:24:29] HTTP request failed: couldn't connect to host                   
    [2011-08-22 17:24:29] Failed json_rpc_call in get_upstream_work                   
    [2011-08-22 17:24:29] json_rpc_call failed, terminating workio thread                   
    [2011-08-22 17:24:29] Received kill message                   
    [2011-08-22 17:24:29] workio thread dead, exiting.                   
    [2011-08-22 17:24:29]
    Summary of runtime statistics:
                       
    [2011-08-22 17:24:29] Started at [2011-08-22 16:48:31]                   
    [2011-08-22 17:24:29] Runtime: 0 hrs : 35 mins : 58 secs                   
    [2011-08-22 17:24:29] Average hashrate: 957.2 Megahash/s                   
    [2011-08-22 17:24:29] Queued work requests: 512                   
    [2011-08-22 17:24:29] Share submissions: 493                   
    [2011-08-22 17:24:29] Accepted shares: 486                   
    [2011-08-22 17:24:29] Rejected shares: 7                   
    [2011-08-22 17:24:29] Reject ratio: 1.4                   
    [2011-08-22 17:24:29] Hardware errors: 0                   
    [2011-08-22 17:24:29] Efficiency (accepted queued): 95%                   
    [2011-08-22 17:24:29] Utility (accepted shares min): 13.54/min
                       
    [2011-08-22 17:24:29] Discarded work due to new blocks: 1                   
    [2011-08-22 17:24:29] Stale submissions discarded due to new blocks: 7                   
    [2011-08-22 17:24:29] Unable to get work from server occasions: 0                   
    [2011-08-22 17:24:29] Work items generated locally: 0                   
    [2011-08-22 17:24:29] Submitting work remotely delay occasions: 1                   
    [2011-08-22 17:24:29] New blocks detected on network: 4
                       
    [2011-08-22 17:24:29] Pool: http://buttoncommand.net:8000                   
    [2011-08-22 17:24:29]  Queued work requests: 496                   
    [2011-08-22 17:24:29]  Share submissions: 478                   
    [2011-08-22 17:24:29]  Accepted shares: 476                   
    [2011-08-22 17:24:29]  Rejected shares: 2                   
    [2011-08-22 17:24:29]  Reject ratio: 0.4                   
    [2011-08-22 17:24:29]  Efficiency (accepted queued): 96%                   
    [2011-08-22 17:24:29]  Discarded work due to new blocks: 1                   
    [2011-08-22 17:24:29]  Stale submissions discarded due to new blocks: 7                   
    [2011-08-22 17:24:29]  Unable to get work from server occasions: 0                   
    [2011-08-22 17:24:29]  Submitting work remotely delay occasions: 1
                       
    [2011-08-22 17:24:29] Pool: http://uswest.btcguild.com:8332                   
    [2011-08-22 17:24:29]  Queued work requests: 16                   
    [2011-08-22 17:24:29]  Share submissions: 15                   
    [2011-08-22 17:24:29]  Accepted shares: 10                   
    [2011-08-22 17:24:29]  Rejected shares: 5                   
    [2011-08-22 17:24:29]  Reject ratio: 33.3                   
    [2011-08-22 17:24:29]  Efficiency (accepted queued): 62%                   
    [2011-08-22 17:24:29]  Discarded work due to new blocks: 0                   
    [2011-08-22 17:24:29]  Stale submissions discarded due to new blocks: 0                   
    [2011-08-22 17:24:29]  Unable to get work from server occasions: 0                   
    [2011-08-22 17:24:29]  Submitting work remotely delay occasions: 0
                       
    [2011-08-22 17:24:29] Summary of per device statistics:
                       
    [2011-08-22 17:24:29]  GPU 0: [356.1 348.4 Mh/s] [Q:184  A:189  R:2  HW:0  E:103%  U:5.42/m]                   
    [2011-08-22 17:24:29]  GPU 1: [317.9 304.6 Mh/s] [Q:163  A:148  R:4  HW:0  E:92%  U:4.28/m]                   
    [2011-08-22 17:24:29]  GPU 2: [301.7 304.2 Mh/s] [Q:163  A:149  R:1  HW:0  E:93%  U:4.31/m]
    The thing is I never sent it the kill message and cgminer keeps crashing like this. I looked at my cron log where I have a cron that checks for cgminer process and starts a new one if it doenst exist which runs every 5 minutes. I see that it has run every five minutes.
    With great video cards comes great power consumption.

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    August 22, 2011, 06:58:05 PM
     #1033
    The for the great work.
    1EZys3JL4ga8EVdvUVdhAmCxWwFoaPNPqz

    I must report that the 1.5.7 is a little bit faster (?!) compared to version 1.5.6 in U/s (5.81s after 1,5 h vs 5.66s h ).
    My GPU is VLIW4 6950@6970/ Win7x64

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    August 22, 2011, 09:51:55 PM
     #1034
    Quote from: Yanz on August 22, 2011, 05:40:12 PM
    The thing is I never sent it the kill message and cgminer keeps crashing like this. I looked at my cron log where I have a cron that checks for cgminer process and starts a new one if it doenst exist which runs every 5 minutes. I see that it has run every five minutes.
    That looks like you've run out of networking capacity to even send anything. Hrm. In this case it might be worth increasing the retry time from 5 seconds to something like 30. -R 30. Meanwhile I'll look at the pool switch code myself as I'm considering getting rid of the 5 minute switch and make it shorter.
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    August 22, 2011, 10:00:42 PM
     #1035
    updated from 1.5.3 to 1.5.7 today... seeing an odd issue in the logs..it seems to be confusing thread 3 with thread 6..

    Quote

    [2011-08-22 14:49:01] Thread 6 recovered, GPU 0 declared WELL!
    [2011-08-22 14:49:03] Thread 3 not responding for more than 10 minutes, GPU 0 declared DEAD!
    [2011-08-22 14:49:03] Thread 6 recovered, GPU 0 declared WELL!
    [2011-08-22 14:49:04] Accepted 340e3713 GPU 1 thread 1 pool 0
    [2011-08-22 14:49:05] Thread 3 not responding for more than 10 minutes, GPU 0 declared DEAD!
    [2011-08-22 14:49:05] Thread 6 recovered, GPU 0 declared WELL!
    [2011-08-22 14:49:07] Thread 3 not responding for more than 10 minutes, GPU 0 declared DEAD!
    [2011-08-22 14:49:07] Thread 6 recovered, GPU 0 declared WELL!
    [2011-08-22 14:49:09] Thread 3 not responding for more than 10 minutes, GPU 0 declared DEAD!
    [2011-08-22 14:49:09] Thread 6 recovered, GPU 0 declared WELL!
    [2011-08-22 14:49:10] Accepted e263f010 GPU 2 thread 8 pool 0
    [2011-08-22 14:49:11] Accepted d33a1712 GPU 0 thread 3 pool 0
    [2011-08-22 14:49:11] Thread 3 not responding for more than 10 minutes, GPU 0 declared DEAD!
    [2011-08-22 14:49:11] Thread 6 recovered, GPU 0 declared WELL!
    [2011-08-22 14:49:13] Thread 3 not responding for more than 10 minutes, GPU 0 declared DEAD!
    [2011-08-22 14:49:13] Thread 6 recovered, GPU 0 declared WELL!
    [2011-08-22 14:49:15] Thread 3 not responding for more than 10 minutes, GPU 0 declared DEAD!
    [2011-08-22 14:49:15] Thread 6 recovered, GPU 0 declared WELL!
    [2011-08-22 14:49:17] Thread 3 not responding for more than 10 minutes, GPU 0 declared DEAD!
    [2011-08-22 14:49:17] Thread 6 recovered, GPU 0 declared WELL!
    [2011-08-22 14:49:19] Accepted 3576d51b GPU 1 thread 7 pool 0
    [2011-08-22 14:49:19] Thread 3 not responding for more than 10 minutes, GPU 0 declared DEAD!
    [2011-08-22 14:49:19] Thread 6 recovered, GPU 0 declared WELL!
    [2011-08-22 14:49:21] Accepted c8e87d27 GPU 2 thread 8 pool 0
    [2011-08-22 14:49:21] Accepted 551c6327 GPU 0 thread 6 pool 0
    [2011-08-22 14:49:21] Thread 3 not responding for more than 10 minutes, GPU 0 declared DEAD!
    [2011-08-22 14:49:21] Thread 6 recovered, GPU 0 declared WELL!
    [2011-08-22 14:49:23] Accepted 0c766d32 GPU 2 thread 5 pool 0
    [2011-08-22 14:49:23] Thread 3 not responding for more than 10 minutes, GPU 0 declared DEAD!
    [2011-08-22 14:49:23] Thread 6 recovered, GPU 0 declared WELL!
    [2011-08-22 14:49:24] Accepted 9bc3ac3b GPU 1 thread 4 pool 0
    [2011-08-22 14:49:25] Accepted a3546444 GPU 2 thread 2 pool 0
    [2011-08-22 14:49:25] Thread 3 not responding for more than 10 minutes, GPU 0 declared DEAD!
    [2011-08-22 14:49:25] Thread 6 recovered, GPU 0 declared WELL!
    [2011-08-22 14:49:27] Thread 3 not responding for more than 10 minutes, GPU 0 declared DEAD!
    [2011-08-22 14:49:27] Thread 6 recovered, GPU 0 declared WELL!
    [2011-08-22 14:49:28] Accepted 0f407e0e GPU 2 thread 8 pool 0
    [2011-08-22 14:49:29] Thread 3 not responding for more than 10 minutes, GPU 0 declared DEAD!
    [2011-08-22 14:49:29] Thread 6 recovered, GPU 0 declared WELL!

    GPU's all look alive:

    Quote
    GPU 0: [354.8 351.6 Mh/s] [Q:9  A:18  R:0  HW:0  E:200%  U:6.03/m]
    Last initialised: [2011-08-22 14:47:12]
    Thread 0: 118.7 Mh/s Enabled ALIVE
    Thread 3: 118.0 Mh/s Enabled ALIVE
    Thread 6: 118.0 Mh/s Enabled ALIVE

    GPU 1: [359.7 358.8 Mh/s] [Q:11  A:9  R:0  HW:0  E:82%  U:3.02/m]
    Last initialised: [2011-08-22 14:47:13]
    Thread 1: 109.6 Mh/s Enabled ALIVE
    Thread 4: 126.3 Mh/s Enabled ALIVE
    Thread 7: 126.6 Mh/s Enabled ALIVE

    GPU 2: [355.5 349.0 Mh/s] [Q:8  A:31  R:0  HW:0  E:443%  U:10.39/m]
    Last initialised: [2011-08-22 14:47:13]
    Thread 2: 118.6 Mh/s Enabled ALIVE
    Thread 5: 118.2 Mh/s Enabled ALIVE
    Thread 8: 118.9 Mh/s Enabled ALIVE

    If I reduce the threads-per-GPU to (2) instead of (3) it complains about 3 not responding and 0 recovers.

    Ideas?

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    August 22, 2011, 10:07:04 PM
     #1036
    Hmm. The threads are on the same GPU. There is indeed some confusion in the code it seems (i.e. a bug). I've only reproduced this once and a restart made it go away. I'll see if I can fix it next version.
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    August 22, 2011, 10:22:42 PM
     #1037
    Quote from: ckolivas on August 22, 2011, 10:07:04 PM
    Hmm. The threads are on the same GPU. There is indeed some confusion in the code it seems (i.e. a bug). I've only reproduced this once and a restart made it go away. I'll see if I can fix it next version.

    Happening across multiple machines, from 2-4 GPU's per box -- happy to give you whatever debug/logs you wish/need, just let me know.

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    August 22, 2011, 11:01:35 PM
     #1038
    Quote from: iopq on August 22, 2011, 03:36:41 PM
    anyway, I get the same speeds with both kernels in 1.5.6 - 143.5ish
    and I get the same speeds with both kernels in 1.5.7 - 141
    Is this built by yourself in linux, a binary in linux, built by yourself in windows, or a binary in windows? If it's the binary in windows, there were some slight differences in the compilation of it. That's the only thing I can think of that was different. The performance is usually only strongly linked to the kernel and not the code within cgminer which makes your results most unusual.
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    August 22, 2011, 11:40:32 PM
     #1039
    Quote from: ckolivas on August 22, 2011, 11:01:35 PM
    Quote from: iopq on August 22, 2011, 03:36:41 PM
    anyway, I get the same speeds with both kernels in 1.5.6 - 143.5ish
    and I get the same speeds with both kernels in 1.5.7 - 141
    Is this built by yourself in linux, a binary in linux, built by yourself in windows, or a binary in windows? If it's the binary in windows, there were some slight differences in the compilation of it. That's the only thing I can think of that was different. The performance is usually only strongly linked to the kernel and not the code within cgminer which makes your results most unusual.

    Linux, Fedora14, 686, grabbed from git. configured like:

    Quote
    CFLAGS="-O3 -Wall -msse3 -I./compat/jansson -I/usr/src/AMD-APP-SDK-v2.4-lnx32/include -g" LDFLAGS="-L/usr/src/AMD-APP-SDK-v2.4-lnx32/lib/x86/ -g"  ./configure

    Make is completely clean.

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    August 23, 2011, 12:29:20 AM
     #1040
    I found some hardware that I can reproduce the slowdown on and have found the offending change. It was actually unintentional. I've pushed the fix to git and it will be in the next version.
    Developer/maintainer for cgminer, ckpool/ckproxy, and the -ck kernel
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