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Author Topic: OFFICIAL CGMINER mining software thread for linux/win/osx/mips/arm/r-pi 4.9.2  (Read 4822251 times)
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February 13, 2013, 11:22:31 PM
 #8801

I built latest from git this morning on CentOS 6.3 with the latest 13.1 drivers from AMD as well as the APP SDK 2.8, so it's all up to date.
13.1 is fucked.

Would it be possible to update the first post with the optimal driver/sdk config for CGMiner? Not knowing this, I just defaulted to latest Wink
It keeps changing as AMD skillfully keeps releasing broken shit... plus GPUs are going the way of the dodos shortly for BTC, so our attention to GPU issues is dropping off to almost zero. Try driver 12.8

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February 13, 2013, 11:39:19 PM
 #8802

I built latest from git this morning on CentOS 6.3 with the latest 13.1 drivers from AMD as well as the APP SDK 2.8, so it's all up to date.
13.1 is fucked.
Would it be possible to update the first post with the optimal driver/sdk config for CGMiner? Not knowing this, I just defaulted to latest Wink
It keeps changing as AMD skillfully keeps releasing broken shit... plus GPUs are going the way of the dodos shortly for BTC, so our attention to GPU issues is dropping off to almost zero. Try driver 12.8
Is it the driver that keeps mucking things up, or the ocl runtime that gets updated every month?

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February 15, 2013, 08:26:04 AM
 #8803

Kon,

There is a potential memleak introduced with latest commit:
Add timestamps to stratum_share structs as they're generated and copy
https://github.com/ckolivas/cgminer/commit/1bf1f4a2174c28a3ae358c6a8b9544e93f35bfac

work->sessionid = strdup(pool->sessionid);

However work->sessionid has been never freed.

Probably the right place to free it is:

void clean_work(struct work *work) {
  if(work->sessionid)
      free(work->sessionid);
....

}

More over it might be a memleak here also even though i am not quite sure about it

https://github.com/ckolivas/cgminer/commit/c851f3959894379b213cd81ecbf8317b2ad4f313

pool->sessionid = json_array_string(res_val, 3);

if json_array_string returns a copy pool->sessionid shall be freed also somewhere right?


PS: probably this is not an issue as long as  json_array_string - > json_array_get returns  Borrowed reference and there is no need to be freed

Thank you Kon! it has been fixed:
https://github.com/ckolivas/cgminer/commit/16c7c983ae9e5ce03a2adc2c573a0c62bfdfefde


 

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February 19, 2013, 09:38:53 AM
 #8804

I noticed with 2.10.4 and in 2.10.5 that when the stratum pool disconnects CGMiner keeps working on that pool's work. At least it appears that is what it does. I get a disconnect and eventually a number of shares discarded last time I noticed it was 17. Of course this seems like too many to me with 1 BFL single currently running on Eclipse 1 at a WU of 12.

The reasons I think it keeps working on the disconnected pool for 2 reason. Both may be faulty and I don't want to alarm anyone. Firstly the discarded shares are usually 60-90 seconds after the disconnect. Expiry would account for that much but not why I had 90 seconds backlog at disconnect. If the pool hadn't taken 90 seconds worth of work it was already sick or dying. Secondly although the BFL single keeps hashing I see no mention of swiching pools (it could be a cosmetic issue). This is substantiated by bad luck notwithstanding 0 shares being delivered to 3 backup pools (eclipse 2 diff1, Eclipse 3 diff1 and a local bitpenny Diff8). I am sure that in 60 seconds I wouldn't expect to see a share everytime for difficulty 8 bitpenny. Aside from a work unit being used from getwork while switching to a stratum server on a change I would expect 1 work unit to bitpenny, then (in 60 seconds) ~11 to eclipse 2 (the next pool in order). I also have never noticed the pool at the top Connected to (blah blah blah) change when this happens. Again that could be cosmetic.

Running windows 7, 1 BFL single, and stratum to Eclipse (three different servers) and a backup bitpenny using getwork.

Also I am pretty sure even factoring in discards as rejects my reject rate is lower using stratum. Thank You for the stratum support.

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February 19, 2013, 09:43:26 AM
 #8805

You're welcome.

The issue is some disconnects are impossible to detect, apart from noticing the pool has gone silent for an extended time. During that sort of outage, cgminer continues mining until it times out, not getting a response. The timeout needs to be long enough to be sure the pool is no longer sending info, and not too long to waste ages mining. So yes, it keeps mining. Anyway hopefully this should be better since the next version will include support for the new mining.resume function. This is already built into the git version, but only rEligius currently supports it. Hopefully other pools will follow suit.

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February 19, 2013, 09:47:28 AM
 #8806

Thats great news!
I am glad the resume function is being added (actually that it even got added to the spcification). That will help alleviate the last few shares that seem to go unpaid execpt for a lost in transmission packet.
Thank You for all your hard work!

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February 19, 2013, 11:00:47 AM
 #8807

You're welcome.

The issue is some disconnects are impossible to detect, apart from noticing the pool has gone silent for an extended time. During that sort of outage, cgminer continues mining until it times out, not getting a response. The timeout needs to be long enough to be sure the pool is no longer sending info, and not too long to waste ages mining. So yes, it keeps mining. Anyway hopefully this should be better since the next version will include support for the new mining.resume function. This is already built into the git version, but only rEligius currently supports it. Hopefully other pools will follow suit.

Maybe related: during recent ozco.in server reorganization I noticed that if your primary pool is a stratum one and it is down when cgminer starts, it just hangs there and does nothing (beside of searching for active pools).

cgminer used was commit 0b833131616 from three days ago.

Sorry if this has already been reported, didn't follow cgminer discussion since it is working rock-solid Wink

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February 19, 2013, 08:33:57 PM
 #8808


Onto a new issue. I want to beable to control remotely what pool is selected. Since I have 9 rigs I want to do this programatically. I am very knowledable of VB and linux, but am new to JSON/RPC. I would like to be able to send such a command via the network interface using RPC via VBA.net. From looking at the cgminer source RPC/JSON commands are accepted through the use of port 4028. What would be the simpliest way to send an RPC packet from VBA.net to switch to pool 2 and viceversa switch to pool 0.

Any help would be appreciated. I have exhausted the third party addons for JSON serialization and RPC protocal and have not come accross a viable solution.

Thanks,
Mark 
 


Mark,
 There are php tools out there.. kanos miner.php i think does it. and i use my own that shows aggregated fans speeds and other stuff>

https://bitcointalk.org/index.php?topic=58834.0

I haven't updated it in a long time,  my current version is only different as it shows highest share and blocks found fields.

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February 19, 2013, 09:06:27 PM
 #8809


Onto a new issue. I want to beable to control remotely what pool is selected. Since I have 9 rigs I want to do this programatically. I am very knowledable of VB and linux, but am new to JSON/RPC. I would like to be able to send such a command via the network interface using RPC via VBA.net. From looking at the cgminer source RPC/JSON commands are accepted through the use of port 4028. What would be the simpliest way to send an RPC packet from VBA.net to switch to pool 2 and viceversa switch to pool 0.

Any help would be appreciated. I have exhausted the third party addons for JSON serialization and RPC protocal and have not come accross a viable solution.

Thanks,
Mark 
 


Mark,
 There are php tools out there.. kanos miner.php i think does it. and i use my own that shows aggregated fans speeds and other stuff>

https://bitcointalk.org/index.php?topic=58834.0

I haven't updated it in a long time,  my current version is only different as it shows highest share and blocks found fields.

It is not actually RPC, it is just a JSON formatted packet into a raw socket and a JSON packet read out.

I have an example of how to use the interface to change pools though, I use it in MinePeon ( http://mineforeman.com/minepeon/ )
so users can change their mining pool from the WebUI.

You can either download MinePeon and grab the code for yourself or if you can wait I will post the code here in about 8 hours.

Bitcoin News http://mineforeman.com/ || MinePeon - Bitcoin mining on the Raspberry PI http://mineforeman.com/minepeon/ || MinePeon Wiki http://minepeon.com/ || MinePeon Forums http://minepeon.com/forums/
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February 19, 2013, 09:15:03 PM
 #8810

You're welcome.

The issue is some disconnects are impossible to detect, apart from noticing the pool has gone silent for an extended time. During that sort of outage, cgminer continues mining until it times out, not getting a response. The timeout needs to be long enough to be sure the pool is no longer sending info, and not too long to waste ages mining. So yes, it keeps mining. Anyway hopefully this should be better since the next version will include support for the new mining.resume function. This is already built into the git version, but only rEligius currently supports it. Hopefully other pools will follow suit.

Maybe related: during recent ozco.in server reorganization I noticed that if your primary pool is a stratum one and it is down when cgminer starts, it just hangs there and does nothing (beside of searching for active pools).

cgminer used was commit 0b833131616 from three days ago.

Sorry if this has already been reported, didn't follow cgminer discussion since it is working rock-solid Wink

I also found this to be the case, I too am mining with ozcoin ATM. Wasn't sure if it was due to the server or my miner though.

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February 20, 2013, 08:44:33 AM
 #8811

Here are some photos from Kanoi on his trip to BFL to inspect their ASIC progress. He returns this weekend, and the chips have not yet arrived to be assembled, as they're still in the bumping facility - BFL couldn't manage to make the bumping facility work any faster, but they're poised and ready to assemble when they do.

http://198.245.60.111/Pix/

Meanwhile myself and him have made some progress generically on preparing for ASIC support in cgminer, but the real driver won't be written until there's some hardware to actually test it on.

If anyone's in Australia and interested in buying the 7970s used by me in developing cgminer, now's your chance to buy one Smiley

http://www.ebay.com.au/itm/SAPPHIRE-HD-7970-3GB-GDDR5-/321074334615

Ironically I've made some tiny improvements to the OpenCL kernel and will be squeezing a few tiny drops more out of them in the next cgminer release. I feel it's my last chance to do anything with OpenCL and bitcoin mining and I'm gonna miss it.

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February 20, 2013, 06:52:31 PM
 #8812

Ironically I've made some tiny improvements to the OpenCL kernel and will be squeezing a few tiny drops more out of them in the next cgminer release. I feel it's my last chance to do anything with OpenCL and bitcoin mining and I'm gonna miss it.

Don't worry Con, you'll still have scrypt to optimize.    Cheesy

Thanks in advance for the tiny extra drops!  They'll add up when BTC reaches parity with gold.

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February 21, 2013, 12:55:58 AM
 #8813

Ironically I've made some tiny improvements to the OpenCL kernel and will be squeezing a few tiny drops more out of them in the next cgminer release. I feel it's my last chance to do anything with OpenCL and bitcoin mining and I'm gonna miss it.

Don't worry Con, you'll still have scrypt to optimize.    Cheesy

Thanks in advance for the tiny extra drops!  They'll add up when BTC reaches parity with gold.
You say that to mock me don't you  Wink Scrypt is very low (read virtually non-existent) on my priority list.

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February 21, 2013, 08:01:18 AM
 #8814

There's not enough to warrant a new release, but if anyone's keen to try the new poclbm kernel you can download the latest version of the file directly here:
https://raw.github.com/ckolivas/cgminer/master/poclbm121016.cl

Remember to delete any .bin files. Seems to work best with SDK 2.7. Even my NVIDIA cards seem to prefer this kernel.

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February 21, 2013, 09:03:20 AM
 #8815

I recently experience a problem with cgminer, when it should recreate it's .bin files, e.g. phatk121016Cypressv4w128l4.bin

debug version of cgminer says:
Code:
cgminer_d.exe caused an Access Violation at location 0042e08c in module cgminer_d.exe Reading from location 04b4e41b.

Registers:
eax=04b4e417 ebx=01e79de0 ecx=ffb5c74d edx=00000008 esi=01e5fd58 edi=01e79f1f
eip=0042e08c esp=0028f4e0 ebp=0028f548 iopl=0         nv up ei pl nz na pe nc
cs=0023  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00010202

Call stack:
0042E08C  cgminer_d.exe:0042E08C
0043027F  cgminer_d.exe:0043027F
0042D020  cgminer_d.exe:0042D020
00416F8A  cgminer_d.exe:00416F8A
004010B9  cgminer_d.exe:004010B9  __mingw_CRTStartup  crt1.c:244

00401284  cgminer_d.exe:00401284  WinMainCRTStartup  crt1.c:274

750433AA  kernel32.dll:750433AA  BaseThreadInitThunk
77219EF2  ntdll.dll:77219EF2  RtlInitializeExceptionChain
77219EC5  ntdll.dll:77219EC5  RtlInitializeExceptionChain

Trying to compile the new poclbm121016.cl .bin file would then result with this error:
Code:
cgminer_d.exe caused an Access Violation at location 0042e08c in module cgminer_d.exe Reading from location 00aba637.

Registers:
eax=00aba633 ebx=0058a700 ecx=ffb5c44d edx=00000008 esi=0056fd40 edi=0058a83f
eip=0042e08c esp=0028f4e0 ebp=0028f548 iopl=0         nv up ei pl nz na pe nc
cs=0023  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00010202

Call stack:
0042E08C  cgminer_d.exe:0042E08C
0043027F  cgminer_d.exe:0043027F
0042D020  cgminer_d.exe:0042D020
00416F8A  cgminer_d.exe:00416F8A
004010B9  cgminer_d.exe:004010B9  __mingw_CRTStartup  crt1.c:244

00401284  cgminer_d.exe:00401284  WinMainCRTStartup  crt1.c:274

750433AA  kernel32.dll:750433AA  BaseThreadInitThunk
77219EF2  ntdll.dll:77219EF2  RtlInitializeExceptionChain
77219EC5  ntdll.dll:77219EC5  RtlInitializeExceptionChain
This looks completely unrelated to the code and suggests some driver +/- SDK fuckage. I suggest trying a different driver, if you can.

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February 21, 2013, 05:34:57 PM
 #8816

There's not enough to warrant a new release, but if anyone's keen to try the new poclbm kernel you can download the latest version of the file directly here:
https://raw.github.com/ckolivas/cgminer/master/poclbm121016.cl

Remember to delete any .bin files. Seems to work best with SDK 2.7. Even my NVIDIA cards seem to prefer this kernel.

I see no difference in speed for a rig with 5870+6990 cards (SDK 2.4).
But there is a notable difference for a rig with 7970 cards (SDK 2.6), from 2524Mh/s to 2543Mh/s.

Maybe you should keep one 7970 for a little while though?...I smell another scrypt bounty in the air...
Not necessarily a LTC fan, but like many GPU miners I'll resort to any option available to keep the rigs working on something.
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February 21, 2013, 09:42:38 PM
 #8817

There's not enough to warrant a new release, but if anyone's keen to try the new poclbm kernel you can download the latest version of the file directly here:
https://raw.github.com/ckolivas/cgminer/master/poclbm121016.cl

Remember to delete any .bin files. Seems to work best with SDK 2.7. Even my NVIDIA cards seem to prefer this kernel.

I see no difference in speed for a rig with 5870+6990 cards (SDK 2.4).
But there is a notable difference for a rig with 7970 cards (SDK 2.6), from 2524Mh/s to 2543Mh/s.

Maybe you should keep one 7970 for a little while though?...I smell another scrypt bounty in the air...
Not necessarily a LTC fan, but like many GPU miners I'll resort to any option available to keep the rigs working on something.
Yah well I did test the code on a 7970... however if you're on 5x or 6x with SDK2.4, it won't even be using this kernel so of course you won't see a difference. My poclbm kernel is optimised for sdk 2.6+ and cgminer usually chooses phatk for other cards on SDK 2.4. You'd have to install SDK 2.7 and manually select -k poclbm to try it on those other cards, and I really don't know how it will perform. I suspect the 6x will perform well, but the 5x are legendary for much preferring phatk with older SDKs.

EDIT: Oh and I've made some minor updates to the scrypt kernel too...

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February 22, 2013, 11:29:22 AM
 #8818

Hello,
There might be potential Found block bug in cgminer 2.10.5. I had found about 5-10 blocks since i start mining.  With old versions of cgminer (getwork) I was always able to see Found Blocks count > 0 from the cgminer api. Recently i Found a block and my pools says that is me who found it. But cgminer shows 0 under Found blocks menu. My question is follows: When mining with stratum and diff > 1 let say 8, is there any chance cgminer not to report to pool that block is found. In general what happens when we found a block, and our share matches to diff 1 which does not meet pool requirement for diff 4 for instance? Is there any chance found block to be wasted and never reported to the pool?



Please help the Led Boy aka Bicknellski to make us a nice Christmas led tree and pay WASP membership fee here:
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February 22, 2013, 12:10:48 PM
 #8819

Hello,
There might be potential Found block bug in cgminer 2.10.5. I had found about 5-10 blocks since i start mining.  With old versions of cgminer (getwork) I was always able to see Found Blocks count > 0 from the cgminer api. Recently i Found a block and my pools says that is me who found it. But cgminer shows 0 under Found blocks menu. My question is follows: When mining with stratum and diff > 1 let say 8, is there any chance cgminer not to report to pool that block is found. In general what happens when we found a block, and our share matches to diff 1 which does not meet pool requirement for diff 4 for instance? Is there any chance found block to be wasted and never reported to the pool?



No

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February 22, 2013, 12:25:01 PM
 #8820

Hello,
There might be potential Found block bug in cgminer 2.10.5. I had found about 5-10 blocks since i start mining.  With old versions of cgminer (getwork) I was always able to see Found Blocks count > 0 from the cgminer api. Recently i Found a block and my pools says that is me who found it. But cgminer shows 0 under Found blocks menu. My question is follows: When mining with stratum and diff > 1 let say 8, is there any chance cgminer not to report to pool that block is found. In general what happens when we found a block, and our share matches to diff 1 which does not meet pool requirement for diff 4 for instance? Is there any chance found block to be wasted and never reported to the pool?



No

10X!
But it is still misery for me why found blocks counts to zero when it should be 1?
For the record this share solved both NMC and BTC block:)

Anyway thank you for taking time to respond me Kon:)


Please help the Led Boy aka Bicknellski to make us a nice Christmas led tree and pay WASP membership fee here:
https://bitcointalk.org/index.php?topic=643999.msg7191563#msg7191563
And remember Bicknellski is not collecting money from community;D
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